Quote from: LudwigW on February 01, 2014, 06:14:29 PM

Thanks for your reply.

Quote from: d'aniel on January 31, 2014, 08:53:35 PM

For (1) you could do merged-mining, as it costs practically nothing extra to miners. But then you have to be careful to keep interests aligned - the new chain can't be competing with Bitcoin, and should in fact be seen as complementing it in some not insignificant way.

Okay, I think I understand, but with merged-mining the new chain would still have a currency of its own that functions as a reward for miners, no?

No. Remember: it costs practically nothing extra to merged mine the new chain, so the incentive to mine doesn't have to be very large - complementing (and not competing with) Bitcoin in some not insignificant way could suffice.

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(2) could be addressed using identities that have a cost to create, and can be blacklisted if they are abusive.

Yes, good point. Who would blacklist them though in a decentralized network?

If one of your peers is being abusive, you would blacklist it. Notice though that a single identity gives you the ability to abuse every node once - ideally you want it so that abusing one node gets you on every node's blacklist. Distributing cryptographic proofs of bad behaviour might a way to achieve this.