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Technical: Taproot: Why Activate?

This is a follow-up on https://old.reddit.com/Bitcoin/comments/hqzp14/technical_the_path_to_taproot_activation/
Taproot! Everybody wants it!! But... you might ask yourself: sure, everybody else wants it, but why would I, sovereign Bitcoin HODLer, want it? Surely I can be better than everybody else because I swapped XXX fiat for Bitcoin unlike all those nocoiners?
And it is important for you to know the reasons why you, o sovereign Bitcoiner, would want Taproot activated. After all, your nodes (or the nodes your wallets use, which if you are SPV, you hopefully can pester to your wallet vendoimplementor about) need to be upgraded in order for Taproot activation to actually succeed instead of becoming a hot sticky mess.
First, let's consider some principles of Bitcoin.
I'm sure most of us here would agree that the above are very important principles of Bitcoin and that these are principles we would not be willing to remove. If anything, we would want those principles strengthened (especially the last one, financial privacy, which current Bitcoin is only sporadically strong with: you can get privacy, it just requires effort to do so).
So, how does Taproot affect those principles?

Taproot and Your /Coins

Most HODLers probably HODL their coins in singlesig addresses. Sadly, switching to Taproot would do very little for you (it gives a mild discount at spend time, at the cost of a mild increase in fee at receive time (paid by whoever sends to you, so if it's a self-send from a P2PKH or bech32 address, you pay for this); mostly a wash).
(technical details: a Taproot output is 1 version byte + 32 byte public key, while a P2WPKH (bech32 singlesig) output is 1 version byte + 20 byte public key hash, so the Taproot output spends 12 bytes more; spending from a P2WPKH requires revealing a 32-byte public key later, which is not needed with Taproot, and Taproot signatures are about 9 bytes smaller than P2WPKH signatures, but the 32 bytes plus 9 bytes is divided by 4 because of the witness discount, so it saves about 11 bytes; mostly a wash, it increases blockweight by about 1 virtual byte, 4 weight for each Taproot-output-input, compared to P2WPKH-output-input).
However, as your HODLings grow in value, you might start wondering if multisignature k-of-n setups might be better for the security of your savings. And it is in multisignature that Taproot starts to give benefits!
Taproot switches to using Schnorr signing scheme. Schnorr makes key aggregation -- constructing a single public key from multiple public keys -- almost as trivial as adding numbers together. "Almost" because it involves some fairly advanced math instead of simple boring number adding, but hey when was the last time you added up your grocery list prices by hand huh?
With current P2SH and P2WSH multisignature schemes, if you have a 2-of-3 setup, then to spend, you need to provide two different signatures from two different public keys. With Taproot, you can create, using special moon math, a single public key that represents your 2-of-3 setup. Then you just put two of your devices together, have them communicate to each other (this can be done airgapped, in theory, by sending QR codes: the software to do this is not even being built yet, but that's because Taproot hasn't activated yet!), and they will make a single signature to authorize any spend from your 2-of-3 address. That's 73 witness bytes -- 18.25 virtual bytes -- of signatures you save!
And if you decide that your current setup with 1-of-1 P2PKH / P2WPKH addresses is just fine as-is: well, that's the whole point of a softfork: backwards-compatibility; you can receive from Taproot users just fine, and once your wallet is updated for Taproot-sending support, you can send to Taproot users just fine as well!
(P2WPKH and P2WSH -- SegWit v0 -- addresses start with bc1q; Taproot -- SegWit v1 --- addresses start with bc1p, in case you wanted to know the difference; in bech32 q is 0, p is 1)
Now how about HODLers who keep all, or some, of their coins on custodial services? Well, any custodial service worth its salt would be doing at least 2-of-3, or probably something even bigger, like 11-of-15. So your custodial service, if it switched to using Taproot internally, could save a lot more (imagine an 11-of-15 getting reduced from 11 signatures to just 1!), which --- we can only hope! --- should translate to lower fees and better customer service from your custodial service!
So I think we can say, very accurately, that the Bitcoin principle --- that YOU are in control of your money --- can only be helped by Taproot (if you are doing multisignature), and, because P2PKH and P2WPKH remain validly-usable addresses in a Taproot future, will not be harmed by Taproot. Its benefit to this principle might be small (it mostly only benefits multisignature users) but since it has no drawbacks with this (i.e. singlesig users can continue to use P2WPKH and P2PKH still) this is still a nice, tidy win!
(even singlesig users get a minor benefit, in that multisig users will now reduce their blockchain space footprint, so that fees can be kept low for everybody; so for example even if you have your single set of private keys engraved on titanium plates sealed in an airtight box stored in a safe buried in a desert protected by angry nomads riding giant sandworms because you're the frickin' Kwisatz Haderach, you still gain some benefit from Taproot)
And here's the important part: if P2PKH/P2WPKH is working perfectly fine with you and you decide to never use Taproot yourself, Taproot will not affect you detrimentally. First do no harm!

Taproot and Your Contracts

No one is an island, no one lives alone. Give and you shall receive. You know: by trading with other people, you can gain expertise in some obscure little necessity of the world (and greatly increase your productivity in that little field), and then trade the products of your expertise for necessities other people have created, all of you thereby gaining gains from trade.
So, contracts, which are basically enforceable agreements that facilitate trading with people who you do not personally know and therefore might not trust.
Let's start with a simple example. You want to buy some gewgaws from somebody. But you don't know them personally. The seller wants the money, you want their gewgaws, but because of the lack of trust (you don't know them!! what if they're scammers??) neither of you can benefit from gains from trade.
However, suppose both of you know of some entity that both of you trust. That entity can act as a trusted escrow. The entity provides you security: this enables the trade, allowing both of you to get gains from trade.
In Bitcoin-land, this can be implemented as a 2-of-3 multisignature. The three signatories in the multisgnature would be you, the gewgaw seller, and the escrow. You put the payment for the gewgaws into this 2-of-3 multisignature address.
Now, suppose it turns out neither of you are scammers (whaaaat!). You receive the gewgaws just fine and you're willing to pay up for them. Then you and the gewgaw seller just sign a transaction --- you and the gewgaw seller are 2, sufficient to trigger the 2-of-3 --- that spends from the 2-of-3 address to a singlesig the gewgaw seller wants (or whatever address the gewgaw seller wants).
But suppose some problem arises. The seller gave you gawgews instead of gewgaws. Or you decided to keep the gewgaws but not sign the transaction to release the funds to the seller. In either case, the escrow is notified, and if it can sign with you to refund the funds back to you (if the seller was a scammer) or it can sign with the seller to forward the funds to the seller (if you were a scammer).
Taproot helps with this: like mentioned above, it allows multisignature setups to produce only one signature, reducing blockchain space usage, and thus making contracts --- which require multiple people, by definition, you don't make contracts with yourself --- is made cheaper (which we hope enables more of these setups to happen for more gains from trade for everyone, also, moon and lambos).
(technology-wise, it's easier to make an n-of-n than a k-of-n, making a k-of-n would require a complex setup involving a long ritual with many communication rounds between the n participants, but an n-of-n can be done trivially with some moon math. You can, however, make what is effectively a 2-of-3 by using a three-branch SCRIPT: either 2-of-2 of you and seller, OR 2-of-2 of you and escrow, OR 2-of-2 of escrow and seller. Fortunately, Taproot adds a facility to embed a SCRIPT inside a public key, so you can have a 2-of-2 Taprooted address (between you and seller) with a SCRIPT branch that can instead be spent with 2-of-2 (you + escrow) OR 2-of-2 (seller + escrow), which implements the three-branched SCRIPT above. If neither of you are scammers (hopefully the common case) then you both sign using your keys and never have to contact the escrow, since you are just using the escrow public key without coordinating with them (because n-of-n is trivial but k-of-n requires setup with communication rounds), so in the "best case" where both of you are honest traders, you also get a privacy boost, in that the escrow never learns you have been trading on gewgaws, I mean ewww, gawgews are much better than gewgaws and therefore I now judge you for being a gewgaw enthusiast, you filthy gewgawer).

Taproot and Your Contracts, Part 2: Cryptographic Boogaloo

Now suppose you want to buy some data instead of things. For example, maybe you have some closed-source software in trial mode installed, and want to pay the developer for the full version. You want to pay for an activation code.
This can be done, today, by using an HTLC. The developer tells you the hash of the activation code. You pay to an HTLC, paying out to the developer if it reveals the preimage (the activation code), or refunding the money back to you after a pre-agreed timeout. If the developer claims the funds, it has to reveal the preimage, which is the activation code, and you can now activate your software. If the developer does not claim the funds by the timeout, you get refunded.
And you can do that, with HTLCs, today.
Of course, HTLCs do have problems:
Fortunately, with Schnorr (which is enabled by Taproot), we can now use the Scriptless Script constuction by Andrew Poelstra. This Scriptless Script allows a new construction, the PTLC or Pointlocked Timelocked Contract. Instead of hashes and preimages, just replace "hash" with "point" and "preimage" with "scalar".
Or as you might know them: "point" is really "public key" and "scalar" is really a "private key". What a PTLC does is that, given a particular public key, the pointlocked branch can be spent only if the spender reveals the private key of the given public key to you.
Another nice thing with PTLCs is that they are deniable. What appears onchain is just a single 2-of-2 signature between you and the developemanufacturer. It's like a magic trick. This signature has no special watermarks, it's a perfectly normal signature (the pledge). However, from this signature, plus some datta given to you by the developemanufacturer (known as the adaptor signature) you can derive the private key of a particular public key you both agree on (the turn). Anyone scraping the blockchain will just see signatures that look just like every other signature, and as long as nobody manages to hack you and get a copy of the adaptor signature or the private key, they cannot get the private key behind the public key (point) that the pointlocked branch needs (the prestige).
(Just to be clear, the public key you are getting the private key from, is distinct from the public key that the developemanufacturer will use for its funds. The activation key is different from the developer's onchain Bitcoin key, and it is the activation key whose private key you will be learning, not the developer's/manufacturer's onchain Bitcoin key).
So:
Taproot lets PTLCs exist onchain because they enable Schnorr, which is a requirement of PTLCs / Scriptless Script.
(technology-wise, take note that Scriptless Script works only for the "pointlocked" branch of the contract; you need normal Script, or a pre-signed nLockTimed transaction, for the "timelocked" branch. Since Taproot can embed a script, you can have the Taproot pubkey be a 2-of-2 to implement the Scriptless Script "pointlocked" branch, then have a hidden script that lets you recover the funds with an OP_CHECKLOCKTIMEVERIFY after the timeout if the seller does not claim the funds.)

Quantum Quibbles!

Now if you were really paying attention, you might have noticed this parenthetical:
(technical details: a Taproot output is 1 version byte + 32 byte public key, while a P2WPKH (bech32 singlesig) output is 1 version byte + 20 byte public key hash...)
So wait, Taproot uses raw 32-byte public keys, and not public key hashes? Isn't that more quantum-vulnerable??
Well, in theory yes. In practice, they probably are not.
It's not that hashes can be broken by quantum computes --- they're still not. Instead, you have to look at how you spend from a P2WPKH/P2PKH pay-to-public-key-hash.
When you spend from a P2PKH / P2WPKH, you have to reveal the public key. Then Bitcoin hashes it and checks if this matches with the public-key-hash, and only then actually validates the signature for that public key.
So an unconfirmed transaction, floating in the mempools of nodes globally, will show, in plain sight for everyone to see, your public key.
(public keys should be public, that's why they're called public keys, LOL)
And if quantum computers are fast enough to be of concern, then they are probably fast enough that, in the several minutes to several hours from broadcast to confirmation, they have already cracked the public key that is openly broadcast with your transaction. The owner of the quantum computer can now replace your unconfirmed transaction with one that pays the funds to itself. Even if you did not opt-in RBF, miners are still incentivized to support RBF on RBF-disabled transactions.
So the extra hash is not as significant a protection against quantum computers as you might think. Instead, the extra hash-and-compare needed is just extra validation effort.
Further, if you have ever, in the past, spent from the address, then there exists already a transaction indelibly stored on the blockchain, openly displaying the public key from which quantum computers can derive the private key. So those are still vulnerable to quantum computers.
For the most part, the cryptographers behind Taproot (and Bitcoin Core) are of the opinion that quantum computers capable of cracking Bitcoin pubkeys are unlikely to appear within a decade or two.
So:
For now, the homomorphic and linear properties of elliptic curve cryptography provide a lot of benefits --- particularly the linearity property is what enables Scriptless Script and simple multisignature (i.e. multisignatures that are just 1 signature onchain). So it might be a good idea to take advantage of them now while we are still fairly safe against quantum computers. It seems likely that quantum-safe signature schemes are nonlinear (thus losing these advantages).

Summary

I Wanna Be The Taprooter!

So, do you want to help activate Taproot? Here's what you, mister sovereign Bitcoin HODLer, can do!

But I Hate Taproot!!

That's fine!

Discussions About Taproot Activation

submitted by almkglor to Bitcoin [link] [comments]

[ Bitcoin ] Technical: Taproot: Why Activate?

Topic originally posted in Bitcoin by almkglor [link]
This is a follow-up on https://old.reddit.com/Bitcoin/comments/hqzp14/technical_the_path_to_taproot_activation/
Taproot! Everybody wants it!! But... you might ask yourself: sure, everybody else wants it, but why would I, sovereign Bitcoin HODLer, want it? Surely I can be better than everybody else because I swapped XXX fiat for Bitcoin unlike all those nocoiners?
And it is important for you to know the reasons why you, o sovereign Bitcoiner, would want Taproot activated. After all, your nodes (or the nodes your wallets use, which if you are SPV, you hopefully can pester to your wallet vendoimplementor about) need to be upgraded in order for Taproot activation to actually succeed instead of becoming a hot sticky mess.
First, let's consider some principles of Bitcoin.
I'm sure most of us here would agree that the above are very important principles of Bitcoin and that these are principles we would not be willing to remove. If anything, we would want those principles strengthened (especially the last one, financial privacy, which current Bitcoin is only sporadically strong with: you can get privacy, it just requires effort to do so).
So, how does Taproot affect those principles?

Taproot and Your /Coins

Most HODLers probably HODL their coins in singlesig addresses. Sadly, switching to Taproot would do very little for you (it gives a mild discount at spend time, at the cost of a mild increase in fee at receive time (paid by whoever sends to you, so if it's a self-send from a P2PKH or bech32 address, you pay for this); mostly a wash).
(technical details: a Taproot output is 1 version byte + 32 byte public key, while a P2WPKH (bech32 singlesig) output is 1 version byte + 20 byte public key hash, so the Taproot output spends 12 bytes more; spending from a P2WPKH requires revealing a 32-byte public key later, which is not needed with Taproot, and Taproot signatures are about 9 bytes smaller than P2WPKH signatures, but the 32 bytes plus 9 bytes is divided by 4 because of the witness discount, so it saves about 11 bytes; mostly a wash, it increases blockweight by about 1 virtual byte, 4 weight for each Taproot-output-input, compared to P2WPKH-output-input).
However, as your HODLings grow in value, you might start wondering if multisignature k-of-n setups might be better for the security of your savings. And it is in multisignature that Taproot starts to give benefits!
Taproot switches to using Schnorr signing scheme. Schnorr makes key aggregation -- constructing a single public key from multiple public keys -- almost as trivial as adding numbers together. "Almost" because it involves some fairly advanced math instead of simple boring number adding, but hey when was the last time you added up your grocery list prices by hand huh?
With current P2SH and P2WSH multisignature schemes, if you have a 2-of-3 setup, then to spend, you need to provide two different signatures from two different public keys. With Taproot, you can create, using special moon math, a single public key that represents your 2-of-3 setup. Then you just put two of your devices together, have them communicate to each other (this can be done airgapped, in theory, by sending QR codes: the software to do this is not even being built yet, but that's because Taproot hasn't activated yet!), and they will make a single signature to authorize any spend from your 2-of-3 address. That's 73 witness bytes -- 18.25 virtual bytes -- of signatures you save!
And if you decide that your current setup with 1-of-1 P2PKH / P2WPKH addresses is just fine as-is: well, that's the whole point of a softfork: backwards-compatibility; you can receive from Taproot users just fine, and once your wallet is updated for Taproot-sending support, you can send to Taproot users just fine as well!
(P2WPKH and P2WSH -- SegWit v0 -- addresses start with bc1q; Taproot -- SegWit v1 --- addresses start with bc1p, in case you wanted to know the difference; in bech32 q is 0, p is 1)
Now how about HODLers who keep all, or some, of their coins on custodial services? Well, any custodial service worth its salt would be doing at least 2-of-3, or probably something even bigger, like 11-of-15. So your custodial service, if it switched to using Taproot internally, could save a lot more (imagine an 11-of-15 getting reduced from 11 signatures to just 1!), which --- we can only hope! --- should translate to lower fees and better customer service from your custodial service!
So I think we can say, very accurately, that the Bitcoin principle --- that YOU are in control of your money --- can only be helped by Taproot (if you are doing multisignature), and, because P2PKH and P2WPKH remain validly-usable addresses in a Taproot future, will not be harmed by Taproot. Its benefit to this principle might be small (it mostly only benefits multisignature users) but since it has no drawbacks with this (i.e. singlesig users can continue to use P2WPKH and P2PKH still) this is still a nice, tidy win!
(even singlesig users get a minor benefit, in that multisig users will now reduce their blockchain space footprint, so that fees can be kept low for everybody; so for example even if you have your single set of private keys engraved on titanium plates sealed in an airtight box stored in a safe buried in a desert protected by angry nomads riding giant sandworms because you're the frickin' Kwisatz Haderach, you still gain some benefit from Taproot)
And here's the important part: if P2PKH/P2WPKH is working perfectly fine with you and you decide to never use Taproot yourself, Taproot will not affect you detrimentally. First do no harm!

Taproot and Your Contracts

No one is an island, no one lives alone. Give and you shall receive. You know: by trading with other people, you can gain expertise in some obscure little necessity of the world (and greatly increase your productivity in that little field), and then trade the products of your expertise for necessities other people have created, all of you thereby gaining gains from trade.
So, contracts, which are basically enforceable agreements that facilitate trading with people who you do not personally know and therefore might not trust.
Let's start with a simple example. You want to buy some gewgaws from somebody. But you don't know them personally. The seller wants the money, you want their gewgaws, but because of the lack of trust (you don't know them!! what if they're scammers??) neither of you can benefit from gains from trade.
However, suppose both of you know of some entity that both of you trust. That entity can act as a trusted escrow. The entity provides you security: this enables the trade, allowing both of you to get gains from trade.
In Bitcoin-land, this can be implemented as a 2-of-3 multisignature. The three signatories in the multisgnature would be you, the gewgaw seller, and the escrow. You put the payment for the gewgaws into this 2-of-3 multisignature address.
Now, suppose it turns out neither of you are scammers (whaaaat!). You receive the gewgaws just fine and you're willing to pay up for them. Then you and the gewgaw seller just sign a transaction --- you and the gewgaw seller are 2, sufficient to trigger the 2-of-3 --- that spends from the 2-of-3 address to a singlesig the gewgaw seller wants (or whatever address the gewgaw seller wants).
But suppose some problem arises. The seller gave you gawgews instead of gewgaws. Or you decided to keep the gewgaws but not sign the transaction to release the funds to the seller. In either case, the escrow is notified, and if it can sign with you to refund the funds back to you (if the seller was a scammer) or it can sign with the seller to forward the funds to the seller (if you were a scammer).
Taproot helps with this: like mentioned above, it allows multisignature setups to produce only one signature, reducing blockchain space usage, and thus making contracts --- which require multiple people, by definition, you don't make contracts with yourself --- is made cheaper (which we hope enables more of these setups to happen for more gains from trade for everyone, also, moon and lambos).
(technology-wise, it's easier to make an n-of-n than a k-of-n, making a k-of-n would require a complex setup involving a long ritual with many communication rounds between the n participants, but an n-of-n can be done trivially with some moon math. You can, however, make what is effectively a 2-of-3 by using a three-branch SCRIPT: either 2-of-2 of you and seller, OR 2-of-2 of you and escrow, OR 2-of-2 of escrow and seller. Fortunately, Taproot adds a facility to embed a SCRIPT inside a public key, so you can have a 2-of-2 Taprooted address (between you and seller) with a SCRIPT branch that can instead be spent with 2-of-2 (you + escrow) OR 2-of-2 (seller + escrow), which implements the three-branched SCRIPT above. If neither of you are scammers (hopefully the common case) then you both sign using your keys and never have to contact the escrow, since you are just using the escrow public key without coordinating with them (because n-of-n is trivial but k-of-n requires setup with communication rounds), so in the "best case" where both of you are honest traders, you also get a privacy boost, in that the escrow never learns you have been trading on gewgaws, I mean ewww, gawgews are much better than gewgaws and therefore I now judge you for being a gewgaw enthusiast, you filthy gewgawer).

Taproot and Your Contracts, Part 2: Cryptographic Boogaloo

Now suppose you want to buy some data instead of things. For example, maybe you have some closed-source software in trial mode installed, and want to pay the developer for the full version. You want to pay for an activation code.
This can be done, today, by using an HTLC. The developer tells you the hash of the activation code. You pay to an HTLC, paying out to the developer if it reveals the preimage (the activation code), or refunding the money back to you after a pre-agreed timeout. If the developer claims the funds, it has to reveal the preimage, which is the activation code, and you can now activate your software. If the developer does not claim the funds by the timeout, you get refunded.
And you can do that, with HTLCs, today.
Of course, HTLCs do have problems:
Fortunately, with Schnorr (which is enabled by Taproot), we can now use the Scriptless Script constuction by Andrew Poelstra. This Scriptless Script allows a new construction, the PTLC or Pointlocked Timelocked Contract. Instead of hashes and preimages, just replace "hash" with "point" and "preimage" with "scalar".
Or as you might know them: "point" is really "public key" and "scalar" is really a "private key". What a PTLC does is that, given a particular public key, the pointlocked branch can be spent only if the spender reveals the private key of the given private key to you.
Another nice thing with PTLCs is that they are deniable. What appears onchain is just a single 2-of-2 signature between you and the developemanufacturer. It's like a magic trick. This signature has no special watermarks, it's a perfectly normal signature (the pledge). However, from this signature, plus some datta given to you by the developemanufacturer (known as the adaptor signature) you can derive the private key of a particular public key you both agree on (the turn). Anyone scraping the blockchain will just see signatures that look just like every other signature, and as long as nobody manages to hack you and get a copy of the adaptor signature or the private key, they cannot get the private key behind the public key (point) that the pointlocked branch needs (the prestige).
(Just to be clear, the public key you are getting the private key from, is distinct from the public key that the developemanufacturer will use for its funds. The activation key is different from the developer's onchain Bitcoin key, and it is the activation key whose private key you will be learning, not the developer's/manufacturer's onchain Bitcoin key).
So:
Taproot lets PTLCs exist onchain because they enable Schnorr, which is a requirement of PTLCs / Scriptless Script.
(technology-wise, take note that Scriptless Script works only for the "pointlocked" branch of the contract; you need normal Script, or a pre-signed nLockTimed transaction, for the "timelocked" branch. Since Taproot can embed a script, you can have the Taproot pubkey be a 2-of-2 to implement the Scriptless Script "pointlocked" branch, then have a hidden script that lets you recover the funds with an OP_CHECKLOCKTIMEVERIFY after the timeout if the seller does not claim the funds.)

Quantum Quibbles!

Now if you were really paying attention, you might have noticed this parenthetical:
(technical details: a Taproot output is 1 version byte + 32 byte public key, while a P2WPKH (bech32 singlesig) output is 1 version byte + 20 byte public key hash...)
So wait, Taproot uses raw 32-byte public keys, and not public key hashes? Isn't that more quantum-vulnerable??
Well, in theory yes. In practice, they probably are not.
It's not that hashes can be broken by quantum computes --- they're still not. Instead, you have to look at how you spend from a P2WPKH/P2PKH pay-to-public-key-hash.
When you spend from a P2PKH / P2WPKH, you have to reveal the public key. Then Bitcoin hashes it and checks if this matches with the public-key-hash, and only then actually validates the signature for that public key.
So an unconfirmed transaction, floating in the mempools of nodes globally, will show, in plain sight for everyone to see, your public key.
(public keys should be public, that's why they're called public keys, LOL)
And if quantum computers are fast enough to be of concern, then they are probably fast enough that, in the several minutes to several hours from broadcast to confirmation, they have already cracked the public key that is openly broadcast with your transaction. The owner of the quantum computer can now replace your unconfirmed transaction with one that pays the funds to itself. Even if you did not opt-in RBF, miners are still incentivized to support RBF on RBF-disabled transactions.
So the extra hash is not as significant a protection against quantum computers as you might think. Instead, the extra hash-and-compare needed is just extra validation effort.
Further, if you have ever, in the past, spent from the address, then there exists already a transaction indelibly stored on the blockchain, openly displaying the public key from which quantum computers can derive the private key. So those are still vulnerable to quantum computers.
For the most part, the cryptographers behind Taproot (and Bitcoin Core) are of the opinion that quantum computers capable of cracking Bitcoin pubkeys are unlikely to appear within a decade or two.
So:
For now, the homomorphic and linear properties of elliptic curve cryptography provide a lot of benefits --- particularly the linearity property is what enables Scriptless Script and simple multisignature (i.e. multisignatures that are just 1 signature onchain). So it might be a good idea to take advantage of them now while we are still fairly safe against quantum computers. It seems likely that quantum-safe signature schemes are nonlinear (thus losing these advantages).

Summary

I Wanna Be The Taprooter!

So, do you want to help activate Taproot? Here's what you, mister sovereign Bitcoin HODLer, can do!

But I Hate Taproot!!

That's fine!

Discussions About Taproot Activation

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submitted by anticensor_bot to u/anticensor_bot [link] [comments]

Some very important points that most people do not understand about Bitcoin

Point 1)
Most people do not understand that you can't send money over internet, but only information. Bitcoin is the first digital settlement layer.
When I send a picture to someone on Facebook messenger, I don't actually send a picture. I send information about the pictures structure, and the picture gets restructured on the client side (the cellphone) of the user I send it to. Copy of the information is being sent, not the picture itself. So you can't send money over internet, it is not possible, only information.
If I have a bank account at some bank, and I send $50 dollars to another person in the same bank by using the banks website, then a transaction happens between two people within the same infrastructure, which is the banks back-end system and database. So the banks system just subtracts $50 dollars from one person and adds $50 dollars to another person. But no money has moved, only information has been edited. But if I send money to someone that uses another Bank, then this bank has its own infrastructure which is independent of the first. So Bank1 tells Bank2 that they have a user that wants to send money to a user of the other bank. So Bank1 subtracts $50 from User1, and Bank2 adds $50 to User2, but now Bank1 owes Bank2 $50, why? Because you can't send money over internet. So they have to settle the difference between them with some kind of a settlement system, (cash, gold or a third party like a central bank). This difference can be the result of many transactions between many users and can be millions of dollars of worth, the settlement can be done periodically for example every 6 months.
With Bitcoin, because of how the system works, it is almost as if you can send value over internet for the first time, even though you don't really send value, you still send information, but since the infrastructure is global, it is like the first example, it is as if the world has (one large bank infrastructure), that is fully automated and which no one controls.
This alone makes Bitcoin extremely valuable, because it is a trust less digital settlement layer which is extremely secure and not dependent on one particular nation or organisation.
Point 2)
There can never be more than 21 million Bitcoin. This is very hard for people to grasp. Because what do you mean there can never be more than 21 million bitcoin? It sounds like a game, such a scam... People do not understand that Bitcoin is not normal software. In normal software the developers can change the code as they want and publish the code when they want. They do not understand that Bitcoin is a software that is not like a normal software. You can't actually change the number even if the number is programmed in. Which of-course most people will deny, because it makes no sense for most people. They do not understand that even though it is theoretically possible to change it, it is practically almost impossible. It is theoretically possible for me to convince half of Sweden to burn half of their money, but practically impossible. Just because something is theoretically possible, doesn't mean that it will happen within a time frame, or even in your lifetime. In order for the 21 million supply to change, most people in the Bitcoin community needs to agree on it, which is practically impossible. Miners have to change to the new protocol and so on. Not going to happen.
When gold treasures were lost in the past, someone else could find them. Gold practically never completely disappears, it is a chemical element. With Bitcoin, once it is lost it is practically lost forever (put aside quantum computing for now and other theoretical unforeseeable events). 21 million is only the upper theoretical limit. Bitcoin will be more and more scarce as time goes by. Gold is not like this. Gold has an inflation rate of 1,5% every year. The reason it is constant is because even if the stock gets bigger, the flow into the stock also gets bigger because of better mining capabilities, so you can look at it as constant inflation of 1.5% every year. With Bitcoin, not only do the stock to flow ratio go up every halvening, and the flow into bitcoin not only decreases with time, but almost goes into negative because of lost coins every year. This is completely insane and people do not understand this. If you combine this almost deflationary nature of Bitcoin with extreme bullish market sentiment then you will realize that no one knows what is going to happen in the future because wrapping your head around all this and to come to a conclusion about the Bitcoin price will make you sound absolutely delusional to most people.
Point 3)
People think that $100,000 bitcoin is wishful thinking and that there is not enough money in the world for Bitcoin to be worth millions of dollars. Which I can assure you is false. Bitcoin can even be worth $50 million dollars per coin, which would make 2 satoshi 1 dollar. Even if one Bitcoin transaction would cost 10 000 Satoshi. You might say, that's not possible, whats the point if one transaction is so expensive. Again, you don't need to actually do a transfer of money, as in the first example of point 1, virtual transactions on bank level can happen, or on Coinbase. You can send 100 satoshi to someone and pay 1 satoshi in fee "on the bank level", not on chain, banks or exchanges then will settle the difference as they want. At least with Bitcoin you have the option to be you own bank, even if that will cost you more, you still have the option. This is already happening in front of your eyes. Banks like Dutch ING, Deutsche bank, are already working on custody services for cryptocurrencies. And even exchanges want to operate as banks and exchanges like Coinbase are working to get license for this. This is already happening and it is the correct move forwards, a mix between the legacy banking system and cryptocurrencies. You can already spend your Bitcoin with Coinbase Visa Card or similar services. Most people are too lazy and stupid to operate like us with their own wallets, it is a fact well known.
In terms of the price, money inflow is not the same as market cap. Take for instance the following simple scenario. I own 100% of the shares of my own company and I decide to sell 10% of the company for 1 million USD, which will value my whole company at 10 million USD, so 1 million flow into my company leads to 10x market cap of 10 million USD. For Bitcoin to have 21 trillion market cap, Bitcoin does not need 21 trillion of money inflow. Bitcoin price is dependent on market sentiment, if the market sentiment is such that very few people want to sell their coins because the price keeps going up then you might have 100x market cap of the money inflow. So 1 billion USD in money inflow translates to 100 billion USD in market cap. The multiplier can be 10x, 2x or 50x, all depends on market sentiment and time period. So an inflow of 10 trillion USD in 10 years might lead to 100 trillion USD market cap of BTC and 5 million USD per Bitcoin.
Bitcoin value have no roof, the price might actually just keep going up and up and up and up and up. We have never had something that is absolutely scarce, and global, and seen as an alternative form of money, when the rest of the world keeps bubbling up. There is no limit on the BTC price because the whole world works with a bubbly system, and the way Bitcoin is price discovered, is a guaranteed insane BTC price in the future. Even $100 million USD per Bitcoin in 50 years before I am dead is possible.
Point 4)
Fiat does not need to die, and Bitcoin does not need to take over in order for Bitcoin to have "ridiculous price". No financial crisis is needed. Actually what you want is things to just continue as they have done in the last 10 years. No too extreme events. Just "small events" here and there. You can't change human nature, it is inevitable. Bitcoin is so ingrained into our world that there is no way back. There will be people with whole Bitcoin, and people without. Just like people with gold and stock investments and real estate, and people without those things. No insane events, this is all normal.
Point 5)
Bitcoin has won as the financial cryptocurrency. No flippening will happen. The only flippening will be with gold and fiat currencies. If I wanted to, I could have developed a system like PayPal in 1 month time, and it would be able to do 5000 transactions per second because I would use MySQL and SSD, but no one would use my service because they would not trust me because they have no idea who I am and what my service is, and there is no one to send money too, so the network is not there. Bitcoin has won because security and network effect is way more important than transactions per second. Transactions per second will be dealt with on bank level, exchange level, or layer 2 solutions. This is already clear to me. Bitcoin has won.
Point 6)
In order to understand Bitcoin and what will happen in the future, you have to be able to see things that are not in front of you. You can't compare Bitcoin to Tulip mania, or even Gold. Because something like Bitcoin has never existed before and you have to think about it's properties and try to understand it with human nature and with how the world works and how everything keeps increasing, and Bitcoin is the thing that does not increase in supply. You will eventually accept the unnatural thought of Bitcoin never stopping going up in value, which is something that is hard to come to terms with, because it feels unnatural, "and it could not possibly be so".
Point 7)
The Gini coefficient of Bitcoin is not a big deal. I used to think that it was unfair that some people had 1,000 BTC, 10,000 BTC, or even 50,000 BTC. And I was afraid that they might dump their coins into the market and crash it. I have now realised that these people are smart people and they think like me, and they won't just dump their whole BTC holding on the market as that might be a very bad move for them. It is like when a majority holder of a company, like Jeff Bezos and Amazon, understands that he can't sell all of his shares in one go as that would effect Amazon stock value too much and would not be smart. It is best to sell when the price goes up, but then when they sell the BTC will just be eaten up by other people, and they will be at a loss in the longer term. And the other thing is that perhaps there is no other smart place to put that fiat money, Bitcoin might just be the best place to keep those amounts of money. Someone with a very large holding has two options. He can either sell his BTC, in which case the price would go down but the Bitcoin would be spread out between potentially thousands of new users, or he might decide to never sell. If he decides to never sell, it is as if those Bitcoins are lost forever and that is good for the Bitcoin price and Bitcoin in general. If he decides to sell then Bitcoin will be divided more equally among many users which is also a good thing for Bitcoin because that increases the network effect, and after he sells he no longer has the power to drive the price down, but now he sits on a very large fiat holding, he might even buy back at a higher price and drive the price higher. I know that if I had 10,000 BTC, I would sell 1,000 BTC and buy a house and a car and whatever I wanted, and sell another 1,000 BTC to diversify into some other assets. And keep 8,000 BTC because I don't know of anywhere else to put that kind of money into good work. I believe in Bitcoin so as an investor it makes sense to keep it here. I probably would never sell because I would never need anything else after the initial 1,000 BTC sell.
Bitcoin is like a black hole that sucks in the Earths monetary resources over time. Most people that bought really early and were smart enough to hold all the way to these prices will only sell what they need to sell and keep the rest in BTC. Some of them might want to speculate and try to time the ATH, only to buy back in with most of the fiat they sold. Which means that even if money goes out of the market, it only goes out of the market temporarily, only to get back in at hopefully lower prices. And so the market grows, and grows and grows over time.
Point 8)
Bitcoin has intrinsic value. When people like Peter Schiff say that gold has intrinsic value because gold can be used in electronics and aviation and therefore gold has value but Bitcoin has no value because it has no intrinsic value, you have to take a pause and do some critical thinking. Can you imagine 16th century pirates looking to find a gold treasure worth an insane amount because they knew gold had value because of electronics and aviation? This is clearly absurd. Gold has been used as money for thousands of years and electronics and aviation was not even a thing 150 years ago. Gold has value because it is globally scarce. Bitcoin is absolutely verifiable scarce. Bitcoin has intrinsic value because of it's monetary policy and because you can carry millions of dollars of value by remembering only 24 words in your head, and carry that value wherever you want and no one can stop you, that is intrinsic value.
People had a hard time understanding that a website like Facebook could be worth billions of dollars, because it was not physical, it was "just a website". Even a website like Google search is not physical and still it has immense value. It is valuable information and it provides a good service, and that has value, it does not have to be physical and tangible.
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Threshold Signature Explained— Bringing Exciting Applications with TSS

Threshold Signature Explained— Bringing Exciting Applications with TSS
— A deep dive into threshold signature without mathematics by ARPA’s cryptographer Dr. Alex Su

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Threshold signature is a distributed multi-party signature protocol that includes distributed key generation, signature, and verification algorithms.
In recent years, with the rapid development of blockchain technology, signature algorithms have gained widespread attention in both academic research and real-world applications. Its properties like security, practicability, scalability, and decentralization of signature are pored through.
Due to the fact that blockchain and signature are closely connected, the development of signature algorithms and the introduction of new signature paradigms will directly affect the characteristics and efficiency of blockchain networks.
In addition, institutional and personal account key management requirements stimulated by distributed ledgers have also spawned many wallet applications, and this change has also affected traditional enterprises. No matter in the blockchain or traditional financial institutions, the threshold signature scheme can bring security and privacy improvement in various scenarios. As an emerging technology, threshold signatures are still under academic research and discussions, among which there are unverified security risks and practical problems.
This article will start from the technical rationale and discuss about cryptography and blockchain. Then we will compare multi-party computation and threshold signature before discussing the pros and cons of different paradigms of signature. In the end, there will be a list of use cases of threshold signature. So that, the reader may quickly learn about the threshold signature.
I. Cryptography in Daily Life
Before introducing threshold signatures, let’s get a general understanding of cryptography. How does cryptography protect digital information? How to create an identity in the digital world? At the very beginning, people want secure storage and transmission. After one creates a key, he can use symmetric encryption to store secrets. If two people have the same key, they can achieve secure transmission between them. Like, the king encrypts a command and the general decrypts it with the corresponding key.
But when two people do not have a safe channel to use, how can they create a shared key? So, the key exchange protocol came into being. Analogously, if the king issues an order to all the people in the digital world, how can everyone proves that the sentence originated from the king? As such, the digital signature protocol was invented. Both protocols are based on public key cryptography, or asymmetric cryptographic algorithms.


“Tiger Rune” is a troop deployment tool used by ancient emperor’s, made of bronze or gold tokens in the shape of a tiger, split in half, half of which is given to the general and the other half is saved by the emperor. Only when two tiger amulets are combined and used at the same time, will the amulet holder get the right to dispatch troops.
Symmetric and asymmetric encryption constitute the main components of modern cryptography. They both have three fixed parts: key generation, encryption, and decryption. Here, we focus on digital signature protocols. The key generation process generates a pair of associated keys: the public key and the private key. The public key is open to everyone, and the private key represents the identity and is only revealed to the owner. Whoever owns the private key has the identity represented by the key. The encryption algorithm, or signature algorithm, takes the private key as input and generate a signature on a piece of information. The decryption algorithm, or signature verification algorithm, uses public keys to verify the validity of the signature and the correctness of the information.
II. Signature in the Blockchain
Looking back on blockchain, it uses consensus algorithm to construct distributed books, and signature provides identity information for blockchain. All the transaction information on the blockchain is identified by the signature of the transaction initiator. The blockchain can verify the signature according to specific rules to check the transaction validity, all thanks to the immutability and verifiability of the signature.
For cryptography, the blockchain is more than using signature protocol, or that the consensus algorithm based on Proof-of-Work uses a hash function. Blockchain builds an infrastructure layer of consensus and transaction through. On top of that, the novel cryptographic protocols such as secure multi-party computation, zero-knowledge proof, homomorphic encryption thrives. For example, secure multi-party computation, which is naturally adapted to distributed networks, can build secure data transfer and machine learning platforms on the blockchain. The special nature of zero-knowledge proof provides feasibility for verifiable anonymous transactions. The combination of these cutting-edge cryptographic protocols and blockchain technology will drive the development of the digital world in the next decade, leading to secure data sharing, privacy protection, or more applications now unimaginable.
III. Secure Multi-party Computation and Threshold Signature
After introducing how digital signature protocol affects our lives, and how to help the blockchain build identities and record transactions, we will mention secure multi-party computation (MPC), from where we can see how threshold signatures achieve decentralization. For more about MPC, please refer to our previous posts which detailed the technical background and application scenarios.
MPC, by definition, is a secure computation that several participants jointly execute. Security here means that, in one computation, all participants provide their own private input, and can obtain results from the calculation. It is not possible to get any private information entered by other parties. In 1982, when Prof. Yao proposed the concept of MPC, he gave an example called the “Millionaires Problem” — two millionaires who want to know who is richer than the other without telling the true amount of assets. Specifically, the secure multiparty computation would care about the following properties:
  • Privacy: Any participant cannot obtain any private input of other participants, except for information that can be inferred from the computation results.
  • Correctness and verifiability: The computation should ensure correct execution, and the legitimacy and correctness of this process should be verifiable by participants or third parties.
  • Fairness or robustness: All parties involved in the calculation, if not agreed in advance, should be able to obtain the computation results at the same time or cannot obtain the results.
Supposing we use secure multi-party computation to make a digital signature in a general sense, we will proceed as follows:
  • Key generation phase: all future participants will be involved together to do two things: 1) each involved party generates a secret private key; 2) The public key is calculated according to the sequence of private keys.
  • Signature phase: Participants joining in a certain signature use their own private keys as private inputs, and the information to be signed as a public input to perform a joint signature operation to obtain a signature. In this process, the privacy of secure multi-party computing ensures the security of private keys. The correctness and robustness guarantee the unforgeability of the signature and everyone can all get signatures.
  • Verification phase: Use the public key corresponding to the transaction to verify the signature as traditional algorithm. There is no “secret input” during the verification, this means that the verification can be performed without multi-party computation, which will become an advantage of multi-party computation type distributed signature.
The signature protocol constructed on the idea of ​​secure multiparty computing is the threshold signature. It should be noted that we have omitted some details, because secure multiparty computing is actually a collective name for a type of cryptographic protocol. For different security assumptions and threshold settings, there are different construction methods. Therefore, the threshold signatures of different settings will also have distinctive properties, this article will not explain each setting, but the comparative result with other signature schemes will be introduced in the next section.
IV. Single Signature, Multi-Signature and Threshold Signature
Besides the threshold signature, what other methods can we choose?
Bitcoin at the beginning, uses single signature which allocates each account with one private key. The message signed by this key is considered legitimate. Later, in order to avoid single point of failure, or introduce account management by multiple people, Bitcoin provides a multi-signature function. Multi-signature can be simply understood as each account owner signs successively and post all signatures to the chain. Then signatures are verified in order on the chain. When certain conditions are met, the transaction is legitimate. This method achieves a multiple private keys control purpose.
So, what’s the difference between multi-signature and threshold signature?
Several constraints of multi-signature are:
  1. The access structure is not flexible. If an account’s access structure is given, that is, which private keys can complete a legal signature, this structure cannot be adjusted at a later stage. For example, a participant withdraws, or a new involved party needs to change the access structure. If you must change, you need to complete the initial setup process again, which will change the public key and account address as well.
  2. Less efficiency. The first is that the verification on chain consumes power of all nodes, and therefore requires a processing fee. The verification of multiple signatures is equivalent to multiple single signatures. The second is performance. The verification obviously takes more time.
  3. Requirements of smart contract support and algorithm adaptation that varies from chain to chain. Because multi-sig is not naturally supported. Due to the possible vulnerabilities in smart contracts, this support is considered risky.
  4. No anonymity, this is not able to be trivially called disadvantage or advantage, because anonymity is required for specific conditions. Anonymity here means that multi-signature directly exposes all participating signers of the transaction.
Correspondingly, the threshold signature has the following features:
  1. The access structure is flexible. Through an additional multi-party computation, the existing private key sequence can be expanded to assign private keys to new participants. This process will not expose the old and newly generated private key, nor will it change the public key and account address.
  2. It provides more efficiency. For the chain, the signature generated by the threshold signature is not different from a single signature, which means the following improvements : a) The verification is the same as the single signature, and needs no additional fee; b ) the information of the signer is invisible, because for other nodes, the information is decrypted with the same public key; c) No smart contract on chain is needed to provide additional support.
In addition to the above discussion, there is a distributed signature scheme supported by Shamir secret sharing. Secret sharing algorithm has a long history which is used to slice information storage and perform error correction information. From the underlying algorithm of secure computation to the error correction of the disc. This technology has always played an important role, but the main problem is that when used in a signature protocol, Shamir secret sharing needs to recover the master private key.
As for multiple signatures or threshold signature, the master private key has never been reconstructed, even if it is in memory or cache. this short-term reconstruction is not tolerable for vital accounts.
V. Limitations
Just like other secure multi-party computation protocols, the introduction of other participants makes security model different with traditional point-to-point encrypted transmission. The problem of conspiracy and malicious participants were not taken into account in algorithms before. The behavior of physical entities cannot be restricted, and perpetrators are introduced into participating groups.
Therefore, multi-party cryptographic protocols cannot obtain the security strength as before. Effort is needed to develop threshold signature applications, integrate existing infrastructure, and test the true strength of threshold signature scheme.
VI. Scenarios
1. Key Management
The use of threshold signature in key management system can achieve a more flexible administration, such as ARPA’s enterprise key management API. One can use the access structure to design authorization pattern for users with different priorities. In addition, for the entry of new entities, the threshold signature can quickly refresh the key. This operation can also be performed periodically to level up the difficulty of hacking multiple private keys at the same time. Finally, for the verifier, the threshold signature is not different from the traditional signature, so it is compatible with old equipments and reduces the update cost. ARPA enterprise key management modules already support Elliptic Curve Digital Signature Scheme secp256k1 and ed25519 parameters. In the future, it will be compatible with more parameters.

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2. Crypto Wallet
Wallets based on threshold signature are more secure because the private key doesn’t need to be rebuilt. Also, without all signatures posted publicly, anonymity can be achieved. Compared to the multi-signature, threshold signature needs less transaction fees. Similar to key management applications, the administration of digital asset accounts can also be more flexible. Furthermore, threshold signature wallet can support various blockchains that do not natively support multi-signature, which reduces the risk of smart contracts bugs.

Conclusion

This article describes why people need the threshold signature, and what inspiring properties it may bring. One can see that threshold signature has higher security, more flexible control, more efficient verification process. In fact, different signature technologies have different application scenarios, such as aggregate signatures not mentioned in the article, and BLS-based multi-signature. At the same time, readers are also welcomed to read more about secure multi-party computation. Secure computation is the holy grail of cryptographic protocols. It can accomplish much more than the application of threshold signatures. In the near future, secure computation will solve more specific application questions in the digital world.

About Author

Dr. Alex Su works for ARPA as the cryptography researcher. He got his Bachelor’s degree in Electronic Engineering and Ph.D. in Cryptography from Tsinghua University. Dr. Su’s research interests include multi-party computation and post-quantum cryptography implementation and acceleration.

About ARPA

ARPA is committed to providing secure data transfer solutions based on cryptographic operations for businesses and individuals.
The ARPA secure multi-party computing network can be used as a protocol layer to implement privacy computing capabilities for public chains, and it enables developers to build efficient, secure, and data-protected business applications on private smart contracts. Enterprise and personal data can, therefore, be analyzed securely on the ARPA computing network without fear of exposing the data to any third party.
ARPA’s multi-party computing technology supports secure data markets, precision marketing, credit score calculations, and even the safe realization of personal data.
ARPA’s core team is international, with PhDs in cryptography from Tsinghua University, experienced systems engineers from Google, Uber, Amazon, Huawei and Mitsubishi, blockchain experts from the University of Tokyo, AIG, and the World Bank. We also have hired data scientists from CircleUp, as well as financial and data professionals from Fosun and Fidelity Investments.
For more information about ARPA, or to join our team, please contact us at [email protected].
Learn about ARPA’s recent official news:
Telegram (English): https://t.me/arpa_community
Telegram (Việt Nam): https://t.me/ARPAVietnam
Telegram (Russian): https://t.me/arpa_community_ru
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Telegram (Philippines):https://t.me/ARPA_Philippines
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Korean Chats: https://open.kakao.com/o/giExbhmb (Kakao) & https://t.me/arpakoreanofficial (Telegram, new)
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EDC Blockchain and ECRO System in the List of Major Blockchain Events 2019!

EDC Blockchain and ECRO System in the List of Major Blockchain Events 2019!
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2019 showed that the Blockchain industry justifies the status of a technological revolution. Bitcoin's capitalization exceeded that of countries such as Turkey, Pakistan and South Africa. And China, India, and Nigeria have already bought cars, real estate and various services for an EDC coin!
Let's think about these and other events of last year, which had the greatest resonance.
Adoption of the cryptography law in China
Speculation and fiction are officially over! China at the state level said "yes" to Blockchain technology! The Chinese Communist Party now directly manages the Central Cryptography Agency. The agency will promote and support cryptography research, protect intellectual property rights and promote the development of public/private key technology, according to Primitive Foundation partner Dovey Wan.
Against this background, the Central Bank of China started talking about creating its own stablecoin, and Chinese President Xi Jinping said that the blockchain will be the main technology for important innovation breakthroughs! The Crypto market reacted instantly: bitcoin rose by more than $2000 in one week of October (from $7500 to $9500), while EDC quotations reached 1 US cents. The optimism then decreased again when it became clear that the Chinese are still fundamentally distinguishing between the notions of "Blockchain" and "Cryptocurrencies".
Bitcoin futures launch
On September 23, 2019, ICE Corporation (International Exchange) started trading daily and month bitcoin futures on the Bakkt platform.
The platform was officially approved by the U.S. Futures Trading Commission (CFTC), and bitcoin deposits of users are insured for $125 million.
The appearance of this platform was associated with certain expectations: the growth of bitcoin to $ 20,000, and the accession of institutional investors. As we already know, these forecasts did not come true, and the peak daily trading volume did not exceed $43 million. Nevertheless, the expectations from this news remain high: both the prestige and liquidity of the market can only improve.
Project Libra's failure
On June 18, the release of Facebook's own cryptographic currency called Libra was to be launched. By all primary signs, the coin could become a market favorite, and the project participants included Visa, Mastercard, eBay, and other major online platforms.
However, it did not work out: problems with regulators reached the hearings in the U.S. Congress, where Mark Zuckerberg himself had to personally promise that Libra will not be launched until all regulators approve of it, and Facebook may even leave the founders.
Project stoppage TON
GRAM Token from Telegram is another "loser" in the big games of life. The developers managed to make the initial offer (ICO) for 1.7 billion dollars and even presented a compiled test wallet. But the U.S. Securities and Exchange Commission (SEC) expressed confidence that GRAM at the token trading stage was sold illegally, falling under the definition of a security.
Now Pavel Durov is facing long legal proceedings, and the project is frozen for an indefinite period. This "triumph" of U.S. market regulators once again underscores the fact that big money at the stage of the birth of new players on the crypto market plays a much smaller role than the real value of coins and technology.
EDC Blockchain Coin constructor for entrepreneurs
Producers of goods and services and businessmen in various niches can now create their own bonus token or a full-fledged cryptographic currency using PoS mining without having at their disposal a team of IT professionals, ICO access opportunities or huge investments. Specialists of the EDC Blockchain platform offered the market a technological coin constructor and ready-made package solutions for the development of small and medium businesses.
It has never been easier to token and scale any project or startup. The constructor is available to all users of the EDC platform, which offers customers a number of bonuses (for example, an automatic listing of new coins on partner exchanges, marketing support and advertising at the level of its international community). A real step forward in business tokenization.
Start of a self-contained blockchain ecosystem ECRO System
Specialists of ECRO Chain Holding, under whose leadership ECRO System projects function, were able to create a "bridge" between the crypto industry and real business.
ECRO System provides an environment for cooperation between manufacturers, sellers and consumers anywhere in the world, including global marketplace, exchange, trading platform, a launching platform for startups, additional services and even an academy for educational purposes. In a global eco-system using a blockchain, a variety of goods and services are safely sold and purchased, any coins are exchanged conveniently and quickly, and new technology projects are made possible. And the ecosystem is expanding geographically by training its own marketers. Application of blockchain, technologies of an artificial intellect, a crypto-merchant allow ECRO System to create conditions for the reliable digital economy.
Crypto trading authorization for German banks
The Bundesrat passed a law allowing German banking institutions to officially sell and buy cryptocurrencies. Discussions in financial circles are still ongoing, as confidential transfers open up space for illegal transactions and money laundering. But the fact is that Vice-Chancellor of Germany Olaf Scholz advocated the creation of a national digital currency, and Sven Hildebrandt, head of the consulting company DLC, is confident that Germany will become a "cryptocurrency paradise".
Official cooperation of Ukraine with Binance Crypto Exchange
Binance International exchange has signed an official memorandum on cooperation with the Ministry of Digital Transformation of Ukraine. Popularization and legalization of the cryptographic industry in Ukraine led to a sharp increase in the interest of global exchange and trading services to start working in one of the largest European countries.
On November 6, the Verkhovna Rada adopted a draft law on the implementation of FATF rules, which regulates all basic concepts and legal aspects of virtual assets that can be considered as property or can be used for payment and investment purposes.
The draft law on asset tokenization, which will allow private and public companies to conduct commercial transactions with their assets in the form of tokens or crypto-stocks, is under development.
We are living at the peak of historical technology development when the speed of real technical changes outpaces even the speed of human imagination. The year 2020 could be a "quantum leap" in cryptographic technology around the world.
The world economy, as well as small and medium businesses, seems to be best prepared for the wide range of opportunities offered by the Blockchain. The EDC Blockchain and ECRO System project teams will continue to develop their products and services in order to maximize the quality of life of modern people through blockchain innovations. We wish you a successful 2020 year filled with new technologies!
via https://blockchain.mn
#edcblockchain #cryptocurrency #global_platform #graphene #lpos #coin_constructor #masternode #leasing #edc #edccoin #edcmining
submitted by EDC-Blockchain to u/EDC-Blockchain [link] [comments]

LIVE Beijing Conference June 22, 2017: English Translation

Me and my partner are going to do English play by play here. Tickets were around 570 each, so if you found this helpful , please donate.
2:10 Checked in. Around 100 guests attending so far. Conference should officially start in 20 mins.
2:30 Conference started. Currently in the Microsoft Beijing Office Lobby. Just introductions so far. The video trailer they played before the conference was quite impressive and in English.
2:32 srikanth Raju is speaking in English. You guys are good for this part. Big point: Microsoft believes in a heterogeneous Blockchain environment for Azure. Mentioned​ Ethereum specifically coexisting with antshares.
2:41 Skipped Jiang Li, Microsoft senior consultant's section for some reason.
2:45 Feng han is talking about the rise of alipay and transactions becoming electronic. Believes that full automation is the next step. Alibaba is still only half automated in their logistics. Huawei is interested in building smart cities, and will need blockchain. Note: they aren't announcing a partnership. Just talking about it.
2:51 Feng han talking about current internet infrastructure not being safe for the futures smart infrastructure. Then talked about a class offered by a genius cryptography professor, wangxiaoyun at tsinghua. Made a joke about 300x returns since ICO.
2:57 Hongfei Da. Talking about bitcoin and history of crypto. Now talking about founding of Antshares. Discussing dBFT and consensus briefly. Now talking about ICO. State of AntShares: 432 nodes, 1058300 blocks, main env running for 150 days. 352 stars on GitHub. LOL talking about this subreddit specifically now. Coinmarketcap ranking.
All assets will be digitized. Two categories: 1. Proof of existence is on the blockchain. 2. Off chain physical assets like IDs, bikeshare locks, intellectual property.
Spirit of blockchain isn't decentralization. It is transparency and fairness via publicly agreed upon rules and data.
Mantra: digital asset + digital ID + smart contract = smart economy.
REBRANDING: NEO smart economy. Green logo
Neo contracts with C#, Java/kotlin, python, go
NeoX is like an interledger protocol
NeoQ is quantum safe encryption
NeoFS is a new database layer
Emphasized ecosystem partnership with bancor agrello matchpool
Missed some points because too fast. Will go back later.
3:28 innospace CEO talking. Selected AntShares to join a pool of 10 companies out of 800 applicants. Best companies get 100x growth. Talked about Neo contracts active dev community and emphasized fintrch fundamental paper.
3:35 Alex norta from agrello. English speaking. Introducing the agrello platform currently. Announced new white paper finished today and ICO occurring now.
3:43 Adam from Coindash. Marketing Coindash as a onestop crypto portfolio that enables social trading and facilitates ICOs. Gives test runs for ICOs and let's you gauge interest. Announcing foray into China with close partnership with NEST partnership.
3:59 they made a reference to the matrix where they all pushed buttons and the screen said, WAKE UP NEO
4:00 break for 30 mins
4:31 restarting. CTO of AntShares speaking. Explaining smart contracts. Telling a story about Coke vending machine software executing a smart contract, except it ate his money because of a malicious party blocking the coin entry. Blockchain is necessary to allow smart contracts to be executed fairly.
Neo is different from Eth and fabric because it has static contract calls, deterministic blockchain network calls, and uses oracle's instead of internet API calls. Example, different nodes will have different Google search results based off of IP location.
NeoVM vs EthVM vs Docker Dyanmic sharding for NeoVM makes parallel processing scale better than EVM which has static sharding. Variables in NeoVM are determined beforehand and then the sharding is done before computation as opposed to EVM which divides work inflexibly.
EVM has high coupling (bad). NVM has low coupling like docker. Execution of contracts depends too much on the nodes and blockchain. This point wasn't too clear. Coupling seems to be a concept that people don't talk about often. Sounds like he was saying that you need to run eth smart contracts on a test blockchain environment while NeoVM allows you to test and run code independent of blockchain.
Microsoft offers IDE plugins and compilers to help people develop on the Neo platform.
Digital certificate issuance and asset digitization are supported in Neo but not inherently in Eth.
Storage layer for contracts is built into Neo. You can give authorization for others to read or write your contract storage space. Also, if your contract has a bug, you can take the data and migrate it to a patched contract. Lastly, allows rental of storage space for contracts. No support for any of the three points above in EVM.
Giving example of locking an account for a period of time. Showing decentralized domains. Sounds a lot like Eth name service.
5:21 bijie tech CEO. Talking about Binance ICO. Introducing the Binance team. Binance is a coin to coin centralized exchange. Made a joke about not wanting to ICO but did it after seeing everyone elses valuations.
5:35 fangzhou charity entrepreneur. Became a multimillionaire after getting some ANS.
Money is freedom. Now wants to give charity loans to kids that need an operation but parents don't have the money. Because of new Chinese laws only 113 out of 500 NGOs can receive donation money. Therefore the market for charity is undersupplied by organizations that can use the money.
5:46 xiaobai medical founder
No fixed location, employees or resources. Wants to make a medical system where people record their illnesses and compare outcomes with other patients to determine what is the best treatment. Can also match patients with doctors. Sounds like a combo of ZocDoc and patientory.
5:55 nest smart fund founder
Problems of most funds are lack of liquidity, inability to participate in the invested company, and high management cost.
DAO on ethereum was hacked, but NEST wants to do what DAO does but more safely and more transparently. They choose C# ( made a joke about being at Microsoft and using C#).
Going to make a nest coin that is redeemable for some of the coins that the project backs.
.................................
Questions:
what's going to happen to ANS?
AntShares will retire and get redistributed as NEO in the new wallet software. You don't have to do anything. No reissue so investors don't get screwed. Exchanges will get contacted automatically.
How many devs do you have now?
2 full time devs. They are going to offer NEO bounties on code and hire more.
New exchange announcement?
Binance
.................................
DONE
.,..............................
ETH donation address: 0x92CBE3Ae9ECB30Fa52BE536d55616571380c43b5
LTC donation address: LZXsdjZJJBWpAx7VQmQ4turVrvgBJwguru
ANS donation address: ARA25KDeQMbcR7nAAjTbbnf3pkW98etD2U
submitted by miaharles to Antshares [link] [comments]

Information and FAQ

Welcome to the official IOTA subreddit.
If you are new you can find lots of information here, in the sidebar and please use the search button to see if your questions have been asked before. Please focus discussion on IOTA technology, ecosystem announcements, project development, apps, etc. Please direct help questions to /IOTASupport, and price discussions and market talk to /IOTAmarkets.
Before getting started it is recommended to read the IOTA_Whitepaper.pdf. I also suggest watching these videos first to gain a better understanding.
IOTA BREAKDOWN: The Tangle Vs. Blockchain Explained
IOTA tutorial 1: What is IOTA and some terminology explained

Information

Firstly, what is IOTA?

IOTA is an open-source distributed ledger protocol launched in 2015 that goes 'beyond blockchain' through its core invention of the blockless ‘Tangle’. The IOTA Tangle is a quantum-resistant Directed Acyclic Graph (DAG), whose digital currency 'iota' has a fixed money supply with zero inflationary cost.
IOTA uniquely offers zero-fee transactions & no fixed limit on how many transactions can be confirmed per second. Scaling limitations have been removed, since throughput grows in conjunction with activity; the more activity, the more transactions can be processed & the faster the network. Further, unlike blockchain architecture, IOTA has no separation between users and validators (miners / stakers); rather, validation is an intrinsic property of using the ledger, thus avoiding centralization.
IOTA is focused on being useful for the emerging machine-to-machine (m2m) economy of the Internet-of-Things (IoT), data integrity, micro-/nano- payments, and other applications where a scalable decentralized system is warranted.
More information can be found here.

Seeds

A seed is a unique identifier that can be described as a combined username and password that grants you access to your IOTA.
Your seed is used to generate the addresses and private keys you will use to store and send IOTA, so this should be kept private and not shared with anyone. If anyone obtains your seed, they can generate the private keys associated with your addresses and access your IOTA.

Non reusable addresses

Contrary to traditional blockchain based systems such as Bitcoin, where your wallet addresses can be reused, IOTA's addresses should only be used once (for outgoing transfers). That means there is no limit to the number of transactions an address can receive, but as soon as you've used funds from that address to make a transaction, this address should not be used anymore.
Why?
When an address is used to make an outgoing transaction, a random 50% of the private key of that particular address is revealed in the transaction signature, which effectively reduces the security of the key. A typical IOTA private key of 81-trits has 2781 possible combinations ( 8.7 x 10115 ) but after a single use, this number drops to around 2754 ( 2 x 1077 ), which coincidentally is close to the number of combinations of a 256-bit Bitcoin private key. Hence, after a single use an IOTA private key has about the same level of security as that of Bitcoin and is basically impractical to brute-force using modern technology. However, after a second use, another random 50% of the private key is revealed and the number of combinations that an attacker has to guess decreases very sharply to approximately 1.554 (~3 billion) which makes brute-forcing trivial even with an average computer.
Note: your seed is never revealed at at time; only private keys specific to each address.
The current light wallet prevents address reuse automatically for you by doing 2 things:
  1. Whenever you make an outgoing transaction from an address that does not consume its entire balance (e.g. address holds 10 Mi but you send only 5 Mi), the wallet automatically creates a new address and sends the change (5 Mi) to the new address.
  2. The wallet prevents you from performing a second outgoing transaction using the same address (it will display a “Private key reuse detected!” error).
This piggy bank diagram can help visualize non reusable addresses. imgur link
[Insert new Safe analogy].

Address Index

When a new address is generated it is calculated from the combination of a seed + Address Index, where the Address Index can be any positive Integer (including "0"). The wallet usually starts from Address Index 0, but it will skip any Address Index where it sees that the corresponding address has already been attached to the tangle.

Private Keys

Private keys are derived from a seeds key index. From that private key you then generate an address. The key index starting at 0, can be incremented to get a new private key, and thus address.
It is important to keep in mind that all security-sensitive functions are implemented client side. What this means is that you can generate private keys and addresses securely in the browser, or on an offline computer. All libraries provide this functionality.
IOTA uses winternitz one-time signatures, as such you should ensure that you know which private key (and which address) has already been used in order to not reuse it. Subsequently reusing private keys can lead to the loss of funds (an attacker is able to forge the signature after continuous reuse).
Exchanges are advised to store seeds, not private keys.

FAQ

Buying IOTA

How do I to buy IOTA?

Currently not all exchanges support IOTA and those that do may not support the option to buy with fiat currencies.
Visit this website for a Guide: How to buy IOTA
or Click Here for a detailed guide made by 450LbsGorilla

Cheapest way to buy IOTA?

You can track the current cheapest way to buy IOTA at IOTA Prices.
It tells you where & how to get the most IOTA for your money right now. There's an overview of the exchanges available to you and a buying guide to help you along.
IOTAPrices.com monitors all major fiat exchanges for their BTC & ETH rates and combines them with current IOTA rates from IOTA exchanges for easy comparison. Rates are taken directly from each exchange's official websocket. For fiat exchanges or exchanges that don't offer websockets, rates are refreshed every 60 seconds.

What is MIOTA?

MIOTA is a unit of IOTA, 1 Mega IOTA or 1 Mi. It is equivalent to 1,000,000 IOTA and is the unit which is currently exchanged.
We can use the metric prefixes when describing IOTA e.g 2,500,000,000 i is equivalent to 2.5 Gi.
Note: some exchanges will display IOTA when they mean MIOTA.

Can I mine IOTA?

No you can not mine IOTA, all the supply of IOTA exist now and no more can be made.
If you want to send IOTA, your 'fee' is you have to verify 2 other transactions, thereby acting like a minenode.

Storing IOTA

Where should I store IOTA?

It is not recommended to store large amounts of IOTA on the exchange as you will not have access to the private keys of the addresses generated.

Wallets

GUI Desktop (Full Node + Light Node)
Version = 2.5.6
Download: GUI v2.5.6
Guide: Download/Login Guide
Nodes: Status
Headless IRI (Full Node)
Version = 1.4.1.4
Download: Mainnet v1.4.1.4
Guide:
Find Neighbours: /nodesharing
UCL Desktop/Android/iOS (Light Node)
Version = Private Alpha Testing
Website: iota-ucl (Medium)
Android (Light Node)
Version = Beta
Download: Google Play
iOS (Light Node)
Version = Beta Testing
Website: https://iota.tools/wallet
Paper Wallet
Version = v1.3.6
Repo: GitHub
Seed Vault
Version = v1.0.2
Repo: GitHub7

What is a seed?

A seed is a unique identifier that can be described as a combined username and password that grants you access to your wallet.
Your seed is used to generate the addresses linked to your account and so this should be kept private and not shared with anyone. If anyone obtains your seed, they can login and access your IOTA.

How do I generate a seed?

You must generate a random 81 character seed using only A-Z and the number 9.
It is recommended to use offline methods to generate a seed, and not recommended to use any non community verified techniques. To generate a seed you could:

On a Linux Terminal

use the following command:
 cat /dev/urandom |tr -dc A-Z9|head -c${1:-81} 

On a Mac Terminal

use the following command:
 cat /dev/urandom |LC_ALL=C tr -dc 'A-Z9' | fold -w 81 | head -n 1 

With KeePass on PC

A helpful guide for generating a secure seed on KeePass can be found here.

With a dice

Dice roll template

Is my seed secure?

  1. All seeds should be 81 characters in random order composed of A-Z and 9.
  2. Do not give your seed to anyone, and don’t keep it saved in a plain text document.
  3. Don’t input your seed into any websites that you don’t trust.
Is Someone Going To Guess My IOTA Seed?
What are the odds of someone guessing your seed?
  • IOTA seed = 81 characters long, and you can use A-Z, 9
  • Giving 2781 = 8.7x10115 possible combinations for IOTA seeds
  • Now let's say you have a "super computer" letting you generate and read every address associated with 1 trillion different seeds per second.
  • 8.7x10115 seeds / 1x1012 generated per second = 8.7x10103 seconds = 2.8x1096 years to process all IOTA seeds.

Why does balance appear to be 0 after a snapshot?

When a snapshot happens, all transactions are being deleted from the Tangle, leaving only the record of how many IOTA are owned by each address. However, the next time the wallet scans the Tangle to look for used addresses, the transactions will be gone because of the snapshot and the wallet will not know anymore that an address belongs to it. This is the reason for the need to regenerate addresses, so that the wallet can check the balance of each address. The more transactions were made before a snapshot, the further away the balance moves from address index 0 and the more addresses have to be (re-) generated after the snapshot.

What happens if you reuse an address?

It is important to understand that only outgoing transactions reveal the private key and incoming transactions do not. If you somehow manage to receive iotas using an address after having used it previously to send iotas—let's say your friend sends iotas to an old address of yours—these iotas may be at risk.
Recall that after a single use an iota address still has the equivalent of 256-bit security (like Bitcoin) so technically, the iotas will still be safe if you do not try to send them out. However, you would want to move these iotas out eventually and the moment you try to send them out, your private key will be revealed a second time and it now becomes feasible for an attacker to brute-force the private key. If someone is monitoring your address and spots a second use, they can easily crack the key and then use it to make a second transaction that will compete with yours. It then becomes a race to see whose transaction gets confirmed first.
Note: The current wallet prevents you from reusing an address to make a second transaction so any iotas you receive with a 'used' address will be stuck. This is a feature of wallet and has nothing to do with the fundamental workings of IOTA.

Sending IOTA

What does attach to the tangle mean?

The process of making an transaction can be divided into two main steps:
  1. The local signing of a transaction, for which your seed is required.
  2. Taking the prepared transaction data, choosing two transactions from the tangle and doing the POW. This step is also called “attaching”.
The following analogy makes it easier to understand:
Step one is like writing a letter. You take a piece of paper, write some information on it, sign it at the bottom with your signature to authenticate that it was indeed you who wrote it, put it in an envelope and then write the recipient's address on it.
Step two: In order to attach our “letter” (transaction), we go to the tangle, pick randomly two of the newest “letters” and tie a connection between our “letter” and each of the “letters” we choose to reference.
The “Attach address” function in the wallet is actually doing nothing else than making an 0 value transaction to the address that is being attached.

Why is my transaction pending?

IOTA's current Tangle implementation (IOTA is in constant development, so this may change in the future) has a confirmation rate that is ~66% at first attempt.
So, if a transaction does not confirm within 1 hour, it is necessary to "reattach" (also known as "replay") the transaction one time. Doing so one time increases probability of confirmation from ~66% to ~89%.
Repeating the process a second time increases the probability from ~89% to ~99.9%.

How do I reattach a transaction.

Reattaching a transaction is different depending on where you send your transaction from. To reattach using the GUI Desktop wallet follow these steps:
  1. Click 'History'.
  2. Click 'Show Bundle' on the 'pending' transaction.
  3. Click 'Reattach'.
  4. Click 'Rebroadcast'. (optional, usually not required)
  5. Wait 1 Hour.
  6. If still 'pending', repeat steps 1-5 once more.

Does the private key get revealed each time you reattach a transaction?

When you use the reattach function in the desktop wallet, a new transaction will be created but it will have the same signature as the original transaction and hence, your private key will not revealed a second time.

What happens to pending transactions after a snapshot?

IOTA Network and Nodes

What incentives are there for running a full node?

IOTA is made for m2m economy, once wide spread adoption by businesses and the IOT, there will be a lot of investment by these businesses to support the IOTA network. In the meantime if you would like to help the network and speed up p2p transactions at your own cost, you can support the IOTA network by setting up a Full Node.
Running a full node also means you don't have to trust a 3rd party light node provider. By running a full node you get to take advantage of new features that might not be installed on 3rd party nodes.

How to set up a full node?

To set up a full node you will need to follow these steps:
  1. Download the full node software: either GUI, or headless CLI for lower system requirements and better performance.
  2. Get a static IP for your node.
  3. Join the network by adding 7-9 neighbours.
  4. Keep your full node up and running as much as possible.
A detailed user guide on how to set up a VTS IOTA Full Node from scratch can be found here.

How do I get a static IP?

To learn how to setup a hostname (~static IP) so you can use the newest IOTA versions that have no automated peer discovery please follow this guide.

How do I find a neighbour?

Are you a single IOTA full node looking for a partner? You can look for partners in these place:

Resources

You can find a wiki I have been making here.
More to come...
If you have any contributions or spot a mistake or clarification, please PM me or leave a comment.
submitted by Boltzmanns_Constant to Iota [link] [comments]

What is a better investment, Bitcoin or Ethereum?

Ethereum.
Before I explain why, I need you to understand something. Bitcoin and Ethereum are at two completely different stages within their potential. They also do not share the exact same mission; therefore, you do have to understand their differences to form an opinion about which one has the biggest use.
Before we look at the coins in detail, let's start with the potential ROI (100% = 2x Original Investment).
Bitcoin’s current market cap is $193,165,354,468 in order for you to make 100% this number would need to double to just under $400 Billion.
Ethereum’s current market cap is $44,715,990,083 , roughly 1/5th of Bitcoins. In order for you to make 100%, the price would need to increase to just under $90 Billion. - This is obviously more probable.
This will not serve as the only variable in making a decision, we now need to break down their uses and differences.
Bitcoin
What is Bitcoin?
A purely peer-to-peer version of electronic cash would allow online payments to be sent directly from one party to another without the burdens of going through a financial institution. Digital signatures provide part of the solution, but the main benefits are lost if a trusted party is still required to prevent double-spending. We propose a solution to the double-spending problem using a peer-to-peer network. The network timestamps transactions by hashing them into an ongoing chain of hash-based proof-of-work, forming a record that cannot be changed without redoing the proof-of-work. The longest chain not only serves as proof of the sequence of events witnessed, but proof that it came from the largest pool of CPU power. As long as honest nodes control the most CPU power on the network, they can generate the longest chain and outpace any attackers. The network itself requires minimal structure. Messages are broadcasted on a best effort basis, and nodes can leave and rejoin the network at will, accepting the longest proof-of-work chain as proof of what happened while they were gone.
Peer-to-Peer (P2P): is a technical way of saying computers (peers) that are connected together via the internet.
Timestamps: are a sequence of characters that identify exactly when a certain event occurred, giving the exact time and date.
Hashing: is the process of compacting large quantities of data into smaller fixed sizes.
Proof-of-work: is the verification that the individual peer created the said hash
Nodes: are computers that are connected to the blockchain
Bitcoin is a first generation cryptocurrency, that was created in 2009 with the intention to become the currency of the internet.
Its Applications
Safe Haven
Being that billions of people are under the control of a broke economy or volatile dictatorship, Bitcoin is beginning to become a medium in which people within underdeveloped countries feel as a more secure place to store their value.
Remittances
The current operation costs roughly $600B annually, all at the expense of separated families. Bitcoin can now serve as a tool that operates the exact same way and only costs 1/10th of the price.
A transaction on the Bitcoin network also processes faster therefore giving the people a strong reason to make the switch.
Currency
Bitcoin is recognized as an asset, but can also be identified as an efficient currency in which people can buy and exchange with. With this being an application of Bitcoin, as the market continues to decrease in volatility, the use for Bitcoin will increase within businesses and everyday people that transact on a daily basis.
These are just a few, but for the sake of answer length, let’s move onto some of the scalability issues with Bitcoin that hinder my decision of choosing Bitcoin over Ethereum.
Bothering Issues with Bitcoin
Energy
A study from Digiconomist found that each transaction on the Bitcoin blockchain uses 236 KWh worth of electricity, this amount is enough to power 8 U.S households for an entire day.
Scalability
Energy consumption will hinder the scalability issues of Bitcoin, however the other issue that arises with POW mining is that with the increase in cost associated with mining BTC it is less economical to mine Bitcoin. This would limit the distributed nodes (miners) globally and allow a larger percentage of control to the dominant mining pools / farms.
This would lead to a more centralized blockchain, where they can change the rules of BTC as they please.
The supply of Bitcoin is finite, capped at 21 million. Eventually (currently predicted for 2140) Bitcoin's supply will run out. Once this happens, miners will no longer receive rewards for completing blocks but instead will be given fees. The fees will be drastically high in relative terms, and people will stop using the blockchain.
Also, if miners decide that this is uneconomical for them to process the transactions and use their computing power elsewhere the speed of transactions for Bitcoin will drastically slow down, rendering one of the fundamental values of a Bitcoin (speed) useless.
Blue chip Companies
This is more so for all cryptocurrencies, but Bitcoin in particular. It’s not a matter of if but a matter of when a blue-chip company such as Facebook, Amazon or Google decides to implement their own cryptocurrency.
Another possibility is a potential ‘world coin’ which global governments will all agree on using, this may seem unrealistic but it is definitely not impossible and many benefits would arise from having such a currency.
Quantum Computing
Bitcoin is said to be Quantum resistant, on the whitepaper it mentions that:
‘To compensate for increasing hardware speed and varying interest in running nodes over time, the proof-of-work difficulty is determined by a moving average targeting an average number of blocks per hour. If they're generated too fast, the difficulty increases.’
This may seem quantum resistant but it is important to understand that the difficulty is changed every 10 minutes and this is more than enough time for QC to mine all of Bitcoin’s remaining coins.
Bitcoin Bubble
The last point of this section is to recognize that the Bitcoin bubble could pop loud enough to crash the market. Due to a whole lot of hype, and even more speculative and uneducated buyers, Bitcoin could face a peak in which a simple spark
Ethereum
What is Ethereum?
Ethereum is an open source platform with the mission to build and inspire next-generation decentralized applications. In other words, the applications being built on the Ethereum network would have no middle men. Users are able to interact safely with social and financial systems to transact peer to peer, therefore opening a new realm of opportunity within decentralized development on specifically the exchange of value.
Like the Bitcoin network exchanges Bitcoin, applications within the Ethereum network would exchange ETHER. Therefore, making the Ethereum network have its own digital currency or, cryptocurrency that these decentralized applications would run on.
On the Ethereum network, developers are able to build these decentralized applications simply, within this seemingly complicated new technology. Think of it as Shopify or Volusion, these are centralized networks in which users/developers can build e-commerce stores more efficiently and cost effectively.
Ethereum is similar in this aspect, the network was essentially created to assist and fuel the growth of decentralized blockchain applications within its network.
Smart Contracts
Now, what Ethereum is based on, is a thing called “Smart Contracts”
Developers are extremely excited about this tool, a smart contract is similar to how it sounds, it’s a digital contract that self-executes… Think of it as a virtual vending machine.
A smart contract is a digital contract between two people in which the technology or tool handles the management, performance, enforcement and payment of the agreement. The smart contract has its own digital bank account of ETHER and settles once the product is received or the service is completed therefore greatly improving the efficiency of data tracking, payment processing and user friendliness of each decentralized application.
Let’s dive into an example
Music
The first age of the internet brought quite a bit of disruption to the music industry… Idk if you knew, but if you we’re a songwriter 25 years ago and produced a hit song that got a million singles you would acquire royalties of up to $50,000. Now if you were to produce a hit song that gets a million streams you don’t get $50,000, you get $45… Enough to cover the first round at the bar.
In result, musicians are now finding other ways to produce revenue with their music. One being the utilization of a blockchain ecosystem like Ethereum. Music applications are now being built for musicians to reclaim their content, smart contracts are being implemented into the music itself, therefore the music protects the intellectual property rights of the artist.
You want to listen to the song? It’s free… or maybe a few micro pennies to download. You want to put the song in your video or movie? Make it your ringtone? These each cost a different price and presented at the point of purchase would be its underlying IP rights for the use of that piece of music.
Musicians are absolutely hyped about this because now, the song becomes a business. It’s out there on this platform marketing itself, protecting the rights of the author and because the song has a payment system; in the sense of a bank account, all of the money then flows back to the artist, and they control the industry rather than these powerful intermediaries.
This concept could apply not only to just songwriters but any creator of content, from art, to inventions, to scientific discoveries or the work from independent journalists. There are endless industries in which people do not gain fair compensation in which the underlying technology of Ethereum could benefit in a big way.
Other examples:
· A smart contract can be created to pay a worker for every hour they work, they log their hours on the blockchain and then after verification the funds are instantly transferred to them
· Buying goods internationally can be tracked and verified – reducing fraud.
· Property buying can be facilitated through the contract
· Every industry that has a contract in place will be able to use the blockchain of Ethereum
It is also worth noting that Ethereum is also a lot quicker than Bitcoin, average block time being 15 seconds for Ethereum opposed to 10 minutes for Bitcoin.
Personally, I am invested into both. If I HAD to choose, like I said it would be Ethereum simply because of where it is now in comparison to its potential as well as its very transparent, direct, opportunistic mission towards the hosting of decentralized blockchain applications.
submitted by alifkhalil469 to BtcNewz [link] [comments]

Three Laws of BTC Bull and Bear Cycle and Its Applications — Freezing Point Forecast — One

Three Laws of BTC Bull and Bear Cycle and Its Applications — Freezing Point Forecast — One
📷
https://preview.redd.it/ithso6k9w7531.jpg?width=750&format=pjpg&auto=webp&s=e87d53120d9cc645b080c070afc5f9b402d56bf3
TOKEN Roll x FENBUSHI DIGITAL
Analyst: Song Shuangjie
Special Adviser: Shen Bo Rin
Guide:
The fourth price-rising cycle of BTC might commence around May 2019. The mainstream institutions join the game and ETF might be the driving force of the fourth round of price cycle.
Summary:
BTC has undergone three rounds of price cycles. ‘It is different this time’ has always been a terrible lesson for investors. The tokens, typical represented by BTC, are special in nature to other financial products, which makes it easily get mistaken that BTC will go up straightly and never decline. When the cycle power works, the asset price, which was thought to create a different history, will collapse. There are 3 major rules of the BTC price cycle:
A. BTC price cycle is closely related to its halving cycle. A complete BTC price cycle lasts for about four years. The price-rising section will commence one year ahead of the time before the output is halved. The BTC output was halved for the first time at the end of November 2012, and before that the BTC price touched the bottom in November 2011. The BTC output was halved for the second time in July 2016, as the BTC price touched the bottom in August 2015. As you can see, each time BTC output halving, is the start of a price-rising cycle, and the price speeding up begins with it.
B. BTC price fluctuation range decreases as market value increasing. The BTC’s (in circulation) market value varies with its price fluctuations, which means BTC’s price rising makes its market value increases, and the price fluctuation range decreases. It is similar to the historical process of other asset classes. During the first price cycle, the price of BTC rose by 10636 times which was the biggest gain, and the maximum drawdown was declined by 93.76%. During the second price cycle, the price of BTC rose by 623 times, and declined by 83.93% maximum. During the third price cycle, BTC rose by 98.57 times at most, the maximum declining has not been confirmed yet.
C. The innovation led by BTC is constantly evolving and more and more approved by the mainstream. From BTC to Altcoin, from Altcoin to Crowdsale, there are iconic innovations and applications in every price cycle. In the first cycle, the birth and gradual application of BTC was a landmark event. In the second cycle, with the re-emergence of BTC in 2013, the tide of the Altcoins was rampant, and a large number of Altcoins appeared. In the third cycle, Crowdsale began to be popular around the world, and many websites started to provide Crowdsale's news and discussion forum. Since 2017, Crowdsale has dominated the blockchain investment, far exceeding VCs and corporate investment. With the development of blockchain technology, the evolution of digital certification, the improvement of practitioners' awareness, and the evolution of government regulation, the innovation led by BTC has evolved and is more approved by the mainstream.
The third round of the price cycle might come to an end around May 2019, and followed by the fourth round of price cycle. The maximum rise in the BTC's fourth price-rising cycle will be smaller than last three cycles. BTC's increasing market value demands more capital. Digital token shall embrace supervision to absorb more institutional funds. ETF will be a viable solution. In the future, it will shift from Crowdsale to ETF, and from deregulation to embracing supervision.
Risk Tips: ETFs have put capital amount into this market less than that we expected. Quantum computer technology is advancing by leaps and bounds
Content
1 The First Round of Price Cycle .
2 The Second Round of Price Cycle
3 The Third Round of Price Cycle
4 Three Major Rules of BTC Price Cycle
4.1 BTC price cycle is closely related to its halving cycle
4.2 BTC price cycle is closely related to its halving cycle
4.3 BTC-led innovatioized by the mainstream
5 The new journey of BTC will Start in May 2019
List of Graphs
Graph 1: BTC Price Trend in The First Price Cycle (in USD)
Graph 2: BTC price trend in the second round of price cycle (in USD)
Graph 3: The number of tokens in 2013 has increased significantly Graph 4: BTC price trend in the third round of price cycle (in USD)
Graph 5: VIX index and BTC price are negatively correlated
Graph 6: Crowdsale has dominated blockchain investment since 2017 (millions of US dollars)
Graph 7: A large number of Crypto Funds were established in recent years.
Graph 8: ETH price trend (in USD)
Graph 9: ETH price is positively related to the size of Crowdsale financing
Graph 10: Lightning network capacity continues to grow
Graph 11: The number of lightning network channels continues to grow
Graph 12: The global Crowdsale growth rate slows down in 2018 .
Graph 13: Crowdsale’s fundraising has started to decline since 2018 .
Graph 14: Significant growth in venture capital in the blockchain sector in 2018
Graph 15: BTC block reward trend reduction
Graph 16: BTC price cycle and halving mechanism (in USD)
Graph 17: BTC market value scale trend increase
Graph 18: BTC price fluctuations become smaller
Graph 19: Admission to mainstream institutions has continued since the end of 2018
Graph 20: The third round of the price cycle may be completed around May 2019
Graph 21: The current stage of the price cycle has been probable more than half, and the downside space is limited
History doesn't repeat itself, but it does rhyme. --Mark Twain
‘It is different this time’ has always been a terrible lesson for investors. The tokens, typical represented by BTC, are special in nature to other financial products, which results in producing an idea, in some investors’ mind, that the price of BTC will go up straightly and never decline. When the cycle power works, the asset price, which was thought to create a different history, will collapse. No matter it is the A-share market of 2007 or the one of 2015, or any ‘bubble time’ in human history, the cycle power played its role. As far as BTC is concerned, its price has also experienced three rounds of cycles.
In addition, when the asset price is in a dark period of continuous decline and weak rebound, the power of the cycle also works. As long as it is a valuable asset, its price will eventually bounce back from the bottom. Opportunities have always been there, if you have an asset with high potential in hand. In the dark moments before dawn, the more you are afraid, the more you will be confused. At this time, you have to believe in the value investing. ‘Be fearful when others are greedy and be greedy when others are fearful’, not the other way around. That means, we shall invest reversely, buying undervalued assets gradually in the bottom region of price decline cycle; selling overvalued assets gradually in the top region of price-rising cycle; and following the trend in other time region of the cycle.
1 The First Round of Price Cycle
The first round of BTC price cycle lasted for 610 days, from March 2010 to November 2011, and in this cycle, BTC price rise rate was the highest of BTCs three price cycles.
The price rise stage of the first round of price cycle, from March 2010 to June 2011, lasted for 447 days. The starting price was 0.003 USD/piece, and the highest price was 31.91 USD/piece, the rise rate reached 10,636 times. The price decline section of the first round of price cycle, from June 2011 to November 2011, lasted for 163 days. In this price decline section, the starting price of BTC was $31.91 per piece, and the lowest price was $1.99 per piece. The decline rate was 94%.
On May 22, 2010, the famous BTC Pizza dealt. Laszlo Hanyecz from Jacksonville, FL, bought two pizzas with 10,000 BTCs. Each price ofBTC is less than 0.01US dollars.
In the first round of the price cycle, there is no explicit positive or negative factors causing BTC's price huge fluctuation. Fluctuations are more like in a “natural” situation. Before the first BTC bubble bursted in November 2011, its price was in a trend of increasing. The reason of rise was that the price base of BTC was very low. With the understanding of BTC gradually getting better, the demand increased, and then, the price rose. For example, June 2011, WikiLeaks and some organizations began accepting BTC donations.
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2 The Second Round of Price Cycle
The second round of BTC price cycle lasted for 1377 days, from November 2011 to August 2015, and in this cycle, the price of BTC exceeded gold for the first time.
The price rise stage of the second round of price cycle, from November 2011 to November 2013, lasted for 743 days. The starting price was $1.99 USD/piece, and the highest price was 1,242 USD/piece, the rise rate reached 623 times. The price decline section of the second round of price cycle. From November 2013 to August 2015, lasted for 634 days. In this price decline stage, the starting price of BTC was 1,242 USD per piece, and the lowest price was 199.57 USD per piece. The decline rate was 84%.
At the second price cycle, the range of application of BTC has been greatly expanded. In November 2012, WordPress began to accept BTC; and in October 2013, the world's first BTC ATM was deployed in a coffee shop in Vancouver where customers could buy and sell BTC. In November 2013, the University of Nicosia announced accepting BTC for tuition, the university's chief financial officer called it "gold of tomorrow"; In addition to some underground economy and gray economy began to accept BTC, BTC is also getting closer to daily life.
The success of BTC popularized altcoins. The first type of altcoin LTC (Litecoin) was created in October 2011, and it is the time when the BTC price came to the end of price decline. In 2011, Namecoin and SwiftCoin were born successively. In 2012, Bytecoin and Peercoin were issued, however, BTC was still in the stage of rising slowly from the bottom, and the market was not hot. Along with the re-emergence of BTC in 2013, the tide of the altcoins is rampant, and a large number of altcoins are issued. According to CoinMarketCap data, there were 66 kinds of altcoins at the end of 2013, while there were less than 10 at the beginning of the year.
The safe-haven properties of BTC are widely approved. BTC was a choice for people in many countries that are in crises. The residents flocked to BTC, hoping to maintain assets value through BTC. This phenomenon has occurred many times during the European debt crisis. For example, in early 2013, in order to get the bailout, the Cyprus government imposed taxes on deposits and imposed strict capital controls. In order to prevent property from shrinking, the Cypriot people rushed to bank runs and exchanged their currencies for BTC. The price of BTC quickly rose from 30 something to 265 US dollars.

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Due to the lack of supervision, BTC is often affected by negative events, which makes the market confidence in the danger of collapsing. In October 2013, the FBI seized approximately 26,000 BTCs from the Silk Road website, causing the BTC price to collapse to 110 US dollars. On December 5, 2013, the People's Bank of China banned the use of BTC by Chinese financial institutions, which made the price of BTC declined. In February 2014, Mt. Gox, the largest BTC exchange at the time, said that 850,000 BTCs of its customers were stolen, worth nearly 500 million US dollars, and BTC prices fell nearly half, from 867 to 439 US dollars.
The emergence of a large number of altcoins caused market bleeding. Since 2014, the number of altcoins has exploded. By August 2015, the number has reached 556, resulting in diversion of funds and market expansion. On May 1, 2013, BTC accounted for 94.29% of the market value of all tokens, and the market value of other tokens except the top 10 tokens was about 1%. By August 25, 2015, the proportion of BTC is about 83%, and the other tokens account for 4%, which is obvious.
No matter how magical token is, it is still a kind of asset. The mean return of value is a basic common sense of investment. The value will pull the price back to it, just like the gravity. The risk increases with the price rises, and the value appears when the price declines. In the rising section of this cycle, the price of BTC rose by 623 times, which is a great rise rate. When the price is too high, and the potential return in the future is insufficient, the attractiveness to new investors will fall, and the old investors will leave and look for more lucrative assets. Once the power of trend investors exhausted, the trend will reverse.
3 The Third Round of Price Cycle
The third round of price cycle of BTC is not over and is currently in the downward phase of the cycle. The price increased from August 2015 and lasted for 845 days till December 2017. The starting price of the price-rising cycle BTC was 199.57 USD/piece, and the highest price was close to 20,000 USD/piece. The rise rate is up to 99 times. Since December 2017, the price started to decline. The price has fallen to the lowest 3,191.30 US dollars up to now, a drop of 84%.
BTC networks expanded rapidly, and BTC has gained increasing recognition among legislators and traditional financial companies. Studies have shown that by November 2013, the commercialization of BTC is no longer driven by the underground economy, but by legitimate businesses. During this price cycle, people from more countries can get in touch with, select, trade and use BTC on a daily basis. In January 2016, Bitcoin computing capacity reached 1 exahash/S for the first time; In March 2016, the Japanese cabinet acknowledged that BTC has a function similar to real money. In 2017, Norway's largest online bank Skandiabanken integrated BTC accounts. In December 2017, Chicago Mercantile Exchange (CME) officially launched BTC futures, which is an important step for BTC to take toward mainstream investment. In October 2018, Fidelity launched its independent subsidiary Fidelity Digital Asset Services to provide digital asset services to institutional customers. In December 2018, the first round of financing was completed by the token exchange Bakkt launched by the Intercontinental Exchange. In February 2019, Nasdaq officially launched - Bitcoin Liquid Index (BLX) and Ethereum Liquid Index (ELX)- two indexes. The pension fund of US invests in the encryption fund, the mainstream organization is accelerating, and the relevant infrastructure is gradually improved.
BTC has become a risky asset. Under the current “three lows” environment - low interest rates, low spreads and low volatility, investors are seeking high returns, which leads to excessive financial risk behaviors and complacency, investors' risk appetite, and high leverage tools and the acceptance of high-risk products has increased, arbitrage transactions have prevailed, liquidity mismatches have been severe, and the overall market is fragile. As the results we can see that, the price of BTC is increasingly correlated with the VIX index (Chicago Options Exchange Volatility Index). A lower VIX index indicates that investors expect less volatility, while a higher VIX indicates higher expected volatility. The lower VIX index indicates that investors are optimistic about S&P 500, while the higher VIX means that investors are uncertain about the market outlook. When market volatility declines, investors buy stocks and other types of risk assets, when the market volatility rises, investors sell risky assets.
Risk assets will be dumped when risk appetite reduces panic market. BTC bid farewell to the nature of safe-haven assets and become a risky asset. Since December 2017, with the decline of the VIX index, the price of BTC rises, and the price of BTC is negatively correlated with the VIX index. At the beginning of 2018, the VIX index skyrocketed and BTC fell rapidly. In October 2018, the global market risk aversion trend increased, the VIX index went up, and the BTC price also fell sharply.

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Crowdsale has become the main financing method in the blockchain field. Crowdsale was born in the second round of the price cycle, Mastercoin did the world's first Crowdsale in July 2013. In 2014, Ethereum also raised funds through Crowdsale, when the price of ETH was less than 0.22 USD per piece. After 2016, when it is in the third price cycle, Crowdsale is popular around the world, and many websites began to provide information and discussion communities for Crowdsale. From a global perspective, Crowdsale has dominated the blockchain investment since 2017, far exceeding VCs and corporate investment. In 2017, Crowdsale raised 7.4 billion US dollars, and in the first half of 2018, Crowdsale Raised 12 billion US dollars.
The Crypto Fund emerged. Along with the Crowdsale boom, a large number of Crypto Funds were created. The number of Crypto Funds newly established in 2017 was nearly 200, far exceeding the total amount of the Crypto funds created in previous years, which fully demonstrated that, with the rise in the price of the token, the enthusiasm of funds to blockchain field is high.

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The rise of blockchain 2.0, the Crowdsale tide pushed ETH up nearly 10,000 times. In the third round of the BTC (Token) price cycle, the biggest star is not BTC, but ETH. Crowdsale after 2016, issued tokens mainly through Ethereum, which represented the rise of ETH in the blockchain 2.0 era. Crowdsale prosperity boosted the rise of ETH. On January 13, 2018, the price of ETH rose to a peak of 1,432.88 US dollars per piece, which is 6512 times rise rate comparing to its initial price.
The ETH price has a significant positive correlation with the growth rate of Crowdsale financing. The growth rate of Crowdsale financing decreased by 69.23% in 2015, the price of ETH decreased by 66.30% in the same year. In 2016, the growth rate of Crowdsale financing increased by 2737.5%, and ETH increased by 753.74%. In 2017, the growth rate of Crowdsale financing increased by 3,159.91%, and ETH rose by 8809.91%.

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Plan for public blockchain performance improvement emerged, and significant progress were made in lightning network. With the popularization of blockchains, the congestion of BTC and other public chains has gradually emerged, and performance has become one of the bottlenecks in the blockchain industry. In 2018, the performance-improvement plan of the public blockchain emerged. Improvements were made to the difference in blockchain logical architecture, including on-chain capacity expansion schemes by improving consensus mechanism and sharing, and off-chain capacity expansion schemes by status channel, sidechain, off-chain computing, and Layer 0 expansion scheme that enhance the scalability of the blockchain by optimizing the underlying data transmission protocol of the blockchain. Since the main net of BTC lightning network goes live, the number and capacity of channels have been increasing. As of March 10, 2019, the capacity has reached 790 BTC, and the number of channels has reached 35,464.

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Note: The Unique channel refers to the channel that is directly connected to the node for the first time, and the Duplicate channel refers to the channel between the nodes that have been connected.
The standardization of the token is promoted. On January 22, 2018, South Korea required all BTC dealers to disclose their identity, thereby prohibiting anonymous trading of BTC. During the first quarter of 2018, Facebook, Google and Twitter prohibited the promotion of Crowdsale, while the US Securities and Exchange Commission investigated a large number of Crowdsale projects, and issued bans to some Crowdsale projects. Regardless of the government's attitude towards the token, it is committed to incorporating the token into the regulatory framework for legal compliance.
The Crowdsale bubble bursted and the magical story is no longer magical. According to incomplete statistics, in 2017, 871 Crowdsale were completed in the world. These projects involved directions as distributed analogous Facebook, twitter, amazon, and next-generation public chain (blockchain 3.0), etc. These projects have raised a large amount of funds, but the actual operating is worrying. The promotion of the project dissipated a large amount of funds, but the actual development progress was far less than expected, resulting in the market's expectation failure and the diversion of funds from the mainstream token. Superimposed the impact of more and more negative news, technical adjustment requirements and market sentiment fluctuation. The market enters a negative cycle, as the decline begins.

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In 2018, there has been rapid growth in venture capital in the blockchain sector, indicating that venture capital still have good expectations about the application and future prospects of the blockchain. According to Coindesk data, the risk investment in the blockchain sector in 2018 reverse the decline of 2017, year-on-year increase of 257%, and the total amount for the year 2018 reached 3.1 billion US dollars.

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BTC peaked first. In terms of time, in the third round of the price cycle, the first to peak is BTC, which reached 19,870.62 USD per piece in December 2017. The peak of ETH happened later than BTC, in January 2018. EOS did not peak until April. The important reason for BTC to peak first is that the amount of funds needed to support the BTC market value scale is the largest. When the market’s ability to carry on is not enough, it is inevitable for the price of BTC to react first.
4 Three Major Rules of BTC Price Cycle
The price cycle of BTC has obvious regularity, and some unchanging factors determine the price fluctuation of BTC.
4.1 BTC price cycle is closely related to its halving cycle
One full BTC price cycle lasts approximately four years. In the first round of price cycles, the measure of time span is not reliable because of the availability of BTC trading prices. The second round of the price cycle lasted for 1,377 days, from November 2011 to August 2015, about four years.
The price-rising cycle of BTC is closely related to its halving period, and the price-rising cycle starts one year before each halving. At the end of November 2012, the first production of BTC was halved, that is, the number of BTC generated by each block was 25, and in November 2011, the price of BTC has bottomed out, and the halving of BTC is one year after the second price-rising cycle. In July 2016, production of BTC was halved the second time, that is, the number of BTC generated by each block was 12.5. In August 2015, BTC had already bottomed out, and BTC's production was reduced again one year after the third price-rising cycle started.

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BTC output halving blows the horn of each price-rising cycle, and the price speeding up begin. Although it is not BTC output halving that brings the price-rising cycle, but the halving of BTC output significantly reduced the growth rate of BTC supply, speeding up the rise of BTC price and the price-rising cycle. From November 2011 to November 2012, before the halving of BTC output, BTC increased by 6.74 times in one year. From November 2012 to November 2013, BTC price increased by 99.57 times. In the third price-rising cycle, BTC price rose by a maximum of 2.87 times in about 11 months before the production cut. After halving, BTC price rose by a maximum of 29.73 times in about 11 months.

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4.2 BTC price cycle is closely related to its halving cycle
The change in the market value scale of BTC (circulation) is mainly caused by its price fluctuations, and has little to do with the changes in the total amount of BTC output. According to CMC data, by April 28, 2013, the total amount of BTC that had been mined was about 11.18 million pieces, which is more than 53% of the total amount of BTC of 21 million pieces. The halving mechanism of BTC also accelerated the marginal decline of BTC total growth rate. Compared with the amount of BTC already mined, the new supply of BTC is very insignificant. In addition, the volatility of BTC prices far exceeds the volatility of BTC's total output, and the market value of BTC fluctuates with its price.
The market value of BTC has increased in trend. Because of the trend of BTC price-rising, the number of BTC total output has also increased in one direction, and the market value of BTC has increased in the long run. According to CMC data, on April 28, 2013, BTC's market value in circulation was only 1.5 billion US dollars. By the peak of the third price-rising cycle, the market value increased to 326.1 billion US dollars, and the current market value also reached 113.8 billion US dollars, increased by 74.87 times.
The price volatility of BTC is gradually getting smaller. With the increasing of BTC market value in trend, the BTC market is becoming more and more mature, more and more accepted by the public, more and more professional organizations are participating, the compliance operation is becoming mainstream, and the BTC price volatility is decreasing. Similar to the historical process of other asset classes, and the same thing is repeated again and again. In the first price cycle, the price of BTC increased by 10636 times, and the fell by 93.76% maximum. In the second price cycle, the price of BTC increased by 623 times, and fell by 83.93% maximum. In the third price cycle, the maximum increase of BTC price was 98.57 times, and the biggest decline has not been confirmed

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4.3 BTC-led innovation continues to evolve and is more and more recognized by the mainstream
From BTC to Altcoin, from Altcoin to Crowdsale, there are iconic innovations and applications in every price cycle. In the first cycle, the birth and gradual application of BTC was a landmark event. In the second cycle, with the re-emergence of BTC in 2013, the tide of the Altcoins was rampant, and a large number of Altcoins appeared. In the third cycle, Crowdsale began to be popular around the world, many websites started to provide Crowdsale's news and discussion forum. Since 2017, Crowdsale has dominated the blockchain investment, far exceeding VCs and corporate investment.
The original intention of Nakamoto to create BTC is to establish a more efficient means of trading that can be electronically transferred in a safe, verifiable and non-tamperable form. During the early days of bitcoin and blockchain development, this drove the development of most applications of BTC and blockchain. However, with the development of blockchain technology, the evolution of digital token, the recognition of practitioners, and the evolution of government regulation, the changes led by BTC continue to evolve and gain more mainstream recognition.
More and more countries recognize that the blockchain reflects its unique value in many fields. The government has gradually incorporated digital token into regulation, and mainstream institutions are increasingly recognizing BTC. In 2017, the Chicago Mercantile Exchange (CME) officially launched BTC futures, as BTC took an important step toward mainstream investment, improving the accessibility of BTC to traditional financial institutions. In March 2017, Cameron's Cliveworth and Taylor W. Crawworth brothers attempted to submit an application to the US Securities and Exchange Commission for BTC ETF (transactional open-ended index fund). Although on September 22, 2018, US Securities and Exchange Commission rejected nine BTC ETF applications, the approval of BTC ETF application is a high probability event in the long run. With the continuous improvement of related infrastructure and the gradual maturity of the market, the pace of institutional entry has shown signs of acceleration. Since the end of 2018, news about the organization of encrypted assets by mainstream institutions has continued.

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5 The new journey of BTC will Start in May 2019
The fourth price-rising cycle of BTC will start in May 2019, and mainstream institutions will enter the market, while ETF may become the core trend of the fourth round of BTC price cycle.
From the perspective of supply, the third halving of BTC begins around May 21, 2020. The price-rising cycle of BTC is closely related to its halving period. The price-rising cycle starts about one year before halving. From this perspective, the BTC price-rising cycle may be opened around May 2019.

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From the time dimension, the complete BTC price cycle lasts for about four years. The third round of the price cycle, which started in August 2015, will be completed around August 2019, and the fourth round of the price cycle of BTC will begin thereafter. Considering that the data in the second round of the price cycle is more reliable, only the second round of price cycle data is used as the measurement standard, the complete price cycle is 1377 days, about 3 years and 9 months, and the third round price cycle may end around May 2019.
Combined with the previous two BTC price cycles, the downturn phase of the current price cycle has been probably more than half, and further downside space is limited. In the first two rounds of the price cycle, the duration of the downlink phase is less than the duration of the uplink phase. The duration of the third phase of the price cycle has been confirmed (845 days), while the duration of the downturn phase has been more than half of the upstream phase (450 days). From the first two rounds of the price cycle, the rapid decline in prices occurred in the early stage of the downtrend phase. The price fluctuations of BTC in the second half of the downturn phase have been significantly reduced. The BTC price declines reached 61% in the first half and 74% in the second round of the price cycle, and the corresponding maximum declines in BTC were 94% and 84% respectively. In the current round of the price cycle, the biggest drop has reached 84%, so take it from now, even if the price is further down, the downside space is already limited.
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Note: The data of the third round of the price cycle and the total duration are up to March 12, 2019.
From the price dimension, the downside space of the current round of BTC prices is limited, and the maximum increase of BTC's fourth price-rising cycle will become smaller. In the first price cycle, the price of BTC increased by 10636 times, and fell by 93.76% maximum. In the second price cycle, the price of BTC increased by 623 times, and fell by 83.93% maximum. In the third price cycle, the maximum increase of BTC price was 98.57 times, and the biggest decline has not been confirmed. On February 6, 2018, BTC fell to a minimum of 3,191.30 US dollars per piece, drop by 84.07%, has reached the low of second round of price cycle, from the perspective of price adjustment, BTC price downside has been more limited. The maximum increase in the fourth price-rising cycle of BTC will be smaller.
From the perspective of risk, after a year of continuous adjustment, BTC prices have fully fallen, risks have been gradually released, and investor’s risk appetite has risen to create favorable conditions for BTC prices to stabilize. Beginning at the end of December 2018, the VIX index has fallen, and now it has reached 15 or below. The investor's risk appetite has gradually picked up, creating favorable conditions for the BTC price to rise stably.
Last but not least, from the perspective of capital, the mainstream institutions accelerated their entry and many positive signals were released. With the continuous improvement of related infrastructure and the gradual maturity of the market, the pace of institutional entry has shown signs of acceleration. Since 2018, on the one hand, the entry of mainstream institutions can bring incremental funds to the entire market, on the other hand, it also contributes to the formal development of the entire industry.
The value of the BTC's market value in circulation continues to increase, and the digital token embraces regulation. It is expected that the ETF will be the core trend in the fourth price cycle. As the value of the BTC and digital token market increases, their use will be more tied-up to legitimate use than illegal activities. According to the US Drug Enforcement Administration (DEA) data, only 10% of the current BTC transactions is related to illegal activities and 90% is used for legal transactions. BTC's increasingly large market value requires more financial support. Digital token will embrace supervision to absorb more funds, and ETF will be a viable solution. In the future, there is going to be an evolution from Crowdsale to ETF, from regulation to embrace supervision.
Note:
Although in this report, we try to predict the bottom and time of Token, especially BTC, by using time and space cycle, we would like to tell investors that it is very dangerous to invest basing on a specific dot and time. An investment shall base on the assessment of the value of the token.
Here are our suggestions: 1. Do not try to predict the market. Mistakes are liable to happen when you try to predict market harshly. 2. Feel the cycle. Cycle is always there, because of the constant human nature;3. Be with a good Token, which will bring you more chance to win. 4.Keep valuation in mind. The most important thing in value investing is to keep the valuation in mind. If the price is reasonable, everything is getable. The key is the difference between price and value (Absolute valuation method is not available with Token because of its specialty. However, a relative valuation method can be applied. Please refer to Token Toll’s report series).
Notions:
For some reasons, some definition in this report are not very defined, such as: Token, Digital Token, Digital Currency, Currency, Crowdsale, etc.
If you have any questions, be free to call us to discuss with us.

https://preview.redd.it/bjnu2hjvw7531.png?width=698&format=png&auto=webp&s=43df46d8337c63a52b8a7089ed5e24360f3b281d
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Trace Mayer on Why You Must Own Your Bitcoin Private Keys Bitcoin Value - YouTube Bitcoin Millionaire Mindset & Investing Advice BINANCE EXCHANGE HOW TO BUY ANY COIN  कोई भी कॉइन तुरंत कैसे खरीदें? Bitcoin: How Cryptocurrencies Work - YouTube

It has several desirable properties: it is decentralized, requiring no trust in any single entity; payments are as quick as quantum communication, regardless of the total number of users; when a quantum banknote is damaged or lost, the rightful owner can recover the lost value. Popular summary. Circa 1969, Wiesner proposed the idea of using the principles of quantum mechanics to construct ... 3.7.1 Properties 3.7.2 Applications 4 Quantum Dots Technology Readiness 5 Quantum Dots Industry Analysis 5.1 Licensing, collaborations and partnerships 5.2 Supply chain 6 Quantum Dots Regulations ... Bitcoin obsoletes all other money because economic systems converge on a single currency, and bitcoin has the most credible monetary properties. “I don’t believe we shall ever have a good money again before we take the thing out of the hands of government, that is, we can’t take it violently out of the hands of government, all we can do is by some sly roundabout way introduce something ... There is also some ongoing academic research on creating quantum-safe public-key algorithms with many of the same properties as today’s public-key algorithms, but this is very experimental. It is not known whether it will end up being possible. A new public-key algorithm can be added to Bitcoin as a softfork. From the end-user perspective ... But emerging cybercurrencies do not have much use as a medium of exchange – at least at first. So how do they become money? The answer to this question is that money of any sort has quantum, dualistic properties – analogous to the wave/particle duality of quantum physics – which allow it to be booted up from the ether.

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Trace Mayer on Why You Must Own Your Bitcoin Private Keys

SUB-LIMINAL B.I.T.C.O.I.N C.RYPTO CURRENCY This Video Is The Property Of DrVirtual7 Just Listen & See What Happens. Affirmations Are Spoken Below Normal Range Of Hearing. Bitcoin Affirmations List ... Thanks for watching! For donations: Bitcoin - 1CpGMM8Ag8gNYL3FffusVqEBUvHyYenTP8 Bitcoin offers people the chance of financial self-sovereignty but yet too many leave their Bitcoin on an exchange, exposing themselves to the risk of hacks, confiscation and exit scams. Bitcoin millionaire Simon Dixon on mindset and investing advice when it comes to bitcoin and cryptocurrencies. Simon Dixon is the CEO & co-founder of online investment platform Bank To The Future ... Hi guys I am going to show how to buy any coin on BINANCE exchange . Binance Exchnage Free Registration Link- https://goo.gl/Tpwsyk Binance / BNB - How to us...

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