"Ouroboros: A Provably Secure Proof-of-Stake Blockchain Protocol" ?
(https://eprint.iacr.org/2016/889.pdf
https://news.ycombinator.com/item?id=13134363
https://www.reddit.com/r/ethereum/comments/52qfwl/provably_s...)
(https://eprint.iacr.org/2016/889.pdf
https://news.ycombinator.com/item?id=13134363
https://www.reddit.com/r/ethereum/comments/52qfwl/provably_s...)
It would take the endorsement of someone that I consider extremely trustworthy to even go to the trouble of trying to deconstruct whether this approach is valid.
It stands, I think, in stark contrast to the simplicity of the proof-of-work based Sybil resistance, and the "central authority will sign the block" based Sybil resistance.
That said, given this discussion about the nature of trust, this scheme may work in effect, even if in the end it devolves into a centralized or social proof to find the correct chain. I'm not sure it adds a lot on top of that except instilling some potentially false sense of security in naively written nodes.