Is it possible to fabricate a blockchain ? - page 2.

cryptrol

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Quote from: justusranvier on May 30, 2014, 08:50:52 AM

Yes, timestamps can be forged.

If someone was careful enough and had plenty of fakes nodes, they could fabricate such a thing.

But what about the difficulty of the proof of work, considering it is high, wouldn't it require massive amount of computer power to fabricate it ?

BurtW

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All paid signature campaigns should be banned.

Why are you beating all around the bush? Which alt are you talking about?

justusranvier

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Yes, timestamps can be forged.

If someone was careful enough and had plenty of fakes nodes, they could fabricate such a thing.

cryptrol

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Merit: 500

Could it be possible to fabricate a presumably 2 years old blockchain in less time (or even instantly) ?

Recently a coin has appeared that claims to be launched two years ago, however, no evidence can be find about it but the blockchain with the actual timestamps.
So I am asking, is it possible to manufacture a blockchain that appears 2 years old but has been recently forged ? The chain has the difficulty and cumulative difficulty values, so I gues this could be possibly checked.

The blockchain in question uses the same concept as Bitcoin (the same byzantine generals solution) but with a different implementation and different PoW.

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