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Topic: Forked block chain (Read 2254 times)

member
Activity: 92
Merit: 10
May 04, 2013, 05:08:52 PM
#27
I read the ECB report regarding digital currency. It actually states that the effects of deflation are not predictable.
Your predictions make apealling sense, but are also subject to unknown factors yet to come or reoccur...

In short, we can only try to predict the future with our limited knowlage of the present.

I think that the first desicion to limit bitcoin production and keep it constantly deflatory might guard it from some of these unforseen events . It sort of allows it to 'fly low'

What i mean to say is that it might not be the most efficent way for the coin to be adapted, esp in current flactuation shifts, but it might be a safe guard from other hazards by constantly making an apeal to early adopters to 'get hold of some coins' and promise a deflative reward.
Keep in mind this currency in adopted by only a very small precent of the population right now, and although it has already very big gaps between 'rich' and 'poor' it still has a long way to go before it is widly adopted.

Still, i think your experiment, either by theory or real implementation is a valuble tool to learn more.

Good luck with it.
member
Activity: 84
Merit: 10
May 04, 2013, 04:56:03 PM
#26
Wingding
I have read your other posts
I think this discussion is very interesting as it deals with one issue that i think BitCoin will have to address sooner or later: a hard fork
I was reading another discussion regarding regulation which questioned the same option, only this time the goverment/regulators might wish to hardfork the blockchain and create a 'safer' coin, one that can be traced and taxed. In return this coin might have legitemacy in mainstream exchange and buisness which could up it's value.
Now the question was: which side of the fork would most current bitcoin users choose. Regulated high cap or freedom low cap?
Same question here, people might be pushed to make a choice.

But does having a choice not devalue both systems?


This is interesting but off-topic Wink (non-technical) and deserves a separate thread. But my opinion in short is: Governments will certainly take the technology in use with FIAT money - sometime and somehow. But they will not care about intercepting bitcoin.  

a government would just create their implementation, which is probably why they havn't cared much about bothering the bitcoin community because they can make use of the improving technology as well (I mean could intellgience agencies conduct covert operations with other intelligence agencies easier with crytocurrency, a though, easy that carrying around pallets of cash)
hero member
Activity: 770
Merit: 504
May 04, 2013, 04:45:56 PM
#25
Wingding
I have read your other posts
I think this discussion is very interesting as it deals with one issue that i think BitCoin will have to address sooner or later: a hard fork
I was reading another discussion regarding regulation which questioned the same option, only this time the goverment/regulators might wish to hardfork the blockchain and create a 'safer' coin, one that can be traced and taxed. In return this coin might have legitemacy in mainstream exchange and buisness which could up it's value.
Now the question was: which side of the fork would most current bitcoin users choose. Regulated high cap or freedom low cap?
Same question here, people might be pushed to make a choice.

But does having a choice not devalue both systems?


This is interesting but off-topic Wink (non-technical) and deserves a separate thread. But my opinion in short is: Governments will certainly take the technology in use with FIAT money - sometime and somehow. But they will not care about intercepting bitcoin.  
member
Activity: 92
Merit: 10
May 04, 2013, 04:06:51 PM
#24
Wingding
I have read your other posts
I think this discussion is very interesting as it deals with one issue that i think BitCoin will have to address sooner or later: a hard fork
I was reading another discussion regarding regulation which questioned the same option, only this time the goverment/regulators might wish to hardfork the blockchain and create a 'safer' coin, one that can be traced and taxed. In return this coin might have legitemacy in mainstream exchange and buisness which could up it's value.
Now the question was: which side of the fork would most current bitcoin users choose. Regulated high cap or freedom low cap?
Same question here, people might be pushed to make a choice.

But does having a choice not devalue both systems?
hero member
Activity: 770
Merit: 504
May 04, 2013, 03:50:21 PM
#23
I've always thought of this for a way to start an alt-coin. The fact that all bitcoin holders automatically becomes alt-coin owners could give it som traction. Or it would just give people some free fraction of bitcoins as they trade their alt-coin for bitcoins as soon as the first exchange opens.

You would have to change the algorithm to find blocks though or you will be vulnerable to a 51% attack from the bitcoin mining pools.

Does changing the algorithm have to mean it's not sha2 and does not fit new asics created for bitcoin or is there an option to change only the output req?

My thought is to use merged mining. So it would be the same algorithm to find blocks. One have to rearrange the block data structure for the alt-chain, so that main chain transactions are part of the nonce. Similar to what (I think) they do for namecoin.
hero member
Activity: 770
Merit: 504
May 04, 2013, 03:30:52 PM
#22
I don't understand your objection.  The coins that are valid on both sides of the fork have nothing to do with each other. 

The point is that if you sign the transaction in one fork, the recipient can submit the same transaction to the main chain and also get your coin there.


But how is re-broadcasting prevented in the main chain as it is?

Re-broadcasting from where?  You need the private key to sign the transaction.

I mean, what stops the recipient (or anyone else) from submitting the same (and already signed) transaction over again?
legendary
Activity: 1232
Merit: 1094
May 04, 2013, 03:23:15 PM
#21
Re-broadcasting from where?  You need the private key to sign the transaction.

I mean scanning each chain, and if a transaction is included in one, it is added to the other (if valid in both).
member
Activity: 92
Merit: 10
May 04, 2013, 03:14:21 PM
#20
I've always thought of this for a way to start an alt-coin. The fact that all bitcoin holders automatically becomes alt-coin owners could give it som traction. Or it would just give people some free fraction of bitcoins as they trade their alt-coin for bitcoins as soon as the first exchange opens.

You would have to change the algorithm to find blocks though or you will be vulnerable to a 51% attack from the bitcoin mining pools.

Does changing the algorithm have to mean it's not sha2 and does not fit new asics created for bitcoin or is there an option to change only the output req?
legendary
Activity: 3472
Merit: 4801
May 04, 2013, 03:07:01 PM
#19
I don't understand your objection.  The coins that are valid on both sides of the fork have nothing to do with each other. 

The point is that if you sign the transaction in one fork, the recipient can submit the same transaction to the main chain and also get your coin there.


But how is re-broadcasting prevented in the main chain as it is?

Re-broadcasting from where?  You need the private key to sign the transaction.
member
Activity: 84
Merit: 10
May 04, 2013, 02:44:09 PM
#18
To sum up the problem

Pre-Fork and Post-Fork Chains are not fungible, but the client will treat them as such.

Several Problems Can occur:

- You lose track of pre-fork coins and end up using them at the lower market value of post fork chains
- the amount of coins in the bitcoin economy shrinks as pre-fork coins will get long in the post-fork economy until somebody goes through the block chain to determine which are which or create a client that distriguishes between the two(which can be a very BIG problem)


IMHO, I think the ethical thing to do would be to start a whole new blockchain with a new genesis block as much as that can be a paid.
hero member
Activity: 770
Merit: 504
May 04, 2013, 12:18:02 PM
#17
I don't understand your objection.  The coins that are valid on both sides of the fork have nothing to do with each other. 

The point is that if you sign the transaction in one fork, the recipient can submit the same transaction to the main chain and also get your coin there.


But how is re-broadcasting prevented in the main chain as it is?
legendary
Activity: 1232
Merit: 1094
April 24, 2013, 03:48:46 AM
#16
If I found myself at all tempted to use both forks, I think I'd create a set of addresses that I owned in both forks and send all my pre-fork coins to my own addresses to split them.

Sounds good.  The forked client should do that automatically.

In fact, as a courtesy, maybe the forked chain would monitor the main chain and include transactions. 
legendary
Activity: 3472
Merit: 4801
April 23, 2013, 10:03:46 PM
#15
I don't understand your objection.  The coins that are valid on both sides of the fork have nothing to do with each other. 

The point is that if you sign the transaction in one fork, the recipient can submit the same transaction to the main chain and also get your coin there.
- snip -

If I found myself at all tempted to use both forks, I think I'd create a set of addresses that I owned in both forks and send all my pre-fork coins to my own addresses to split them.

Example:

Pre-fork output for 10 BTC is sent to address 1AAAAA

Fork occurs

I create address 1BBBBBB and 1CCCCCC in both wallets.

I transmit a transaction to my BTC peers spending the 10 BTC output previously received at 1AAAAA and assigning 10BTC to address 1BBBBBB.
I transmit a transaction to my alt-coin peers spending the 10 BTC output previously received at 1AAAAA and assigning 10BTC to address 1CCCCCC.

Once both transactions have made it into their respective blockchains, I can now safely spend the 10 BTC in both networks without fear of the transaction being re-broadcast on the competing network.

If someone were to capture and re-broadcast either of my initital transactions to the competing netowrk, the coins would still be under my control, and I could re-attempt to move them using the same technique.
hero member
Activity: 770
Merit: 504
April 22, 2013, 09:02:06 AM
#14
I don't see a problem with this, on the contrary it seems like an excellent idea.

Your fork will have coins pre-distributed so you don't have the problems with early adaptors.

You could even apply some filter that defines which of the older coins are valid.  Or you could exclude all addresses with more than X coins.

Do whatever that maximizes the spread of the coins and minimizes variance.  The initial allocation of coins is one of the major problems that Satoshi had in his papers, and that is the reason for the constant rate given to miners.  However with an existing economy you can utilize the dillution that has already happened to your advantage.

I think this is a superior way of bootstrapping an alt-chain to maximize the economy.

Yes, it is more or less what I had in mind. But that is another discussion and can be found here:
https://bitcointalksearch.org/topic/i-will-create-a-forked-bitcoin-chain-181488
legendary
Activity: 2940
Merit: 1090
April 22, 2013, 03:59:43 AM
#13
A constant block-reward fork was already create a couple of years ago, it is called GRouPcoin and the reward is 50 coins per block forever.

-MarkM-
member
Activity: 85
Merit: 10
April 22, 2013, 03:57:43 AM
#12
The blockchain is publicly available data. You can print it out to use it as your toilet paper or you can use it to feed your program with data. What your  program does with that data is up to your program only.
legendary
Activity: 1232
Merit: 1094
April 22, 2013, 03:50:40 AM
#11
I don't understand your objection.  The coins that are valid on both sides of the fork have nothing to do with each other. 

The point is that if you sign the transaction in one fork, the recipient can submit the same transaction to the main chain and also get your coin there.

The only way around it is to have a different signing system on the fork.  For example, the rule could be that a script is valid on the fork if the signature is valid for the script or the script with "ALT-CHAIN-1" appended to it.

Transactions on the main chain would continue to be valid on the fork, but once you sign a coin to a script with the suffix, then they are no longer transferred in lock step.
newbie
Activity: 39
Merit: 0
April 21, 2013, 11:50:23 PM
#10
Your fork will have coins pre-distributed so you don't have the problems with early adaptors.

You might be overlooking the obvious. 

The spend transactions from the "pre-distributed"  coins would be valid on both sides of the fork.  Thus if bitcoin is trading at $90, let's say, and you are asking me to pay 10,000 ?TC for a pizza then I'm certainly not going to be using my pre-distributed coins and instead would only be using ones whose coinbase occurred post-fork.

And even putting that aside, you've got a fork that is extremely vulnerable to 51% attack.

I don't understand your objection.  The coins that are valid on both sides of the fork have nothing to do with each other.  They have no effect on each other.  If you spend 10.000 ?TC of pre-forck ?TCs, it has no effect on your bitcoins.
legendary
Activity: 2506
Merit: 1010
April 18, 2013, 03:04:09 PM
#9
Your fork will have coins pre-distributed so you don't have the problems with early adaptors.

You might be overlooking the obvious. 

The spend transactions from the "pre-distributed"  coins would be valid on both sides of the fork.  Thus if bitcoin is trading at $90, let's say, and you are asking me to pay 10,000 ?TC for a pizza then I'm certainly not going to be using my pre-distributed coins and instead would only be using ones whose coinbase occurred post-fork.

And even putting that aside, you've got a fork that is extremely vulnerable to 51% attack.
newbie
Activity: 39
Merit: 0
April 18, 2013, 11:35:00 AM
#8
I don't see a problem with this, on the contrary it seems like an excellent idea.

Your fork will have coins pre-distributed so you don't have the problems with early adaptors.

You could even apply some filter that defines which of the older coins are valid.  Or you could exclude all addresses with more than X coins.

Do whatever that maximizes the spread of the coins and minimizes variance.  The initial allocation of coins is one of the major problems that Satoshi had in his papers, and that is the reason for the constant rate given to miners.  However with an existing economy you can utilize the dillution that has already happened to your advantage.

I think this is a superior way of bootstrapping an alt-chain to maximize the economy.
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