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Would recording signed block checkpoints of a proof-of-stake (PoS) blockchain in a proof-of-work (PoW) blockchain by bonded signatories be of value for mitigating PoS long range attacks, and nothing-at-stake attacks? If a consensus mechanism could be devised for a PoS blockchain's state recorded on a PoW blockchain, then a PoS Blockchain could achieve greater transaction integrity while improving the effective throughput of PoW mechanism at an aggregate level.

If a distributed Crossblockchain Checkpoint Consensus could be reliably achieved, it will create a symbiotic marriage between PoW and PoS mechanisms that can scale transaction rates (a PoS blockchain characteristic) with greater integrity (a PoW blockchain characteristic). Such crosschain checkpoints could also better protect consumers from potential PoS-related fraud with the application of special smart contract primatives.

This concept to establish loosely coupled protocols on top of Bitcoin should achieve at least 2 orders of magnitude greater transaction throughput, and could buy time while Lightning Network Technology is being matured.

closed as off-topic by Andrew Chow Jul 17 at 18:49

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  • I totally don't understand what you're talking about (but that's probably me). However, it doesn't sound like it would solve any of the scalability problems that currently prevent raising the block size limit. And it definitely doesn't sound like something that would be easily integrated into Bitcoin (if consensus about it would even be achievable), let alone be faster to mature than LN, which is already well underway. – Jannes Jan 8 '16 at 12:35
  • I know I have discussed the idea of doing checkpoints for a separate blockchain in the bitcoin with others before, but I don't see how this improves throughput. It's mainly a mechanism to prevent long range attacks on PoS blockchains. – morsecoder Jan 8 '16 at 15:42