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A proof that the pok and its hash hasn't been altered since its creation.
by kngl 6y ago
A proof that the pok and its hash hasn't been altered since its creation.
- smt88 6y agoYou can accomplish this with plain old cryptography. No blockchain needed. There are lots of ways to do it. One of them would be for Fuuture to publish the hash to literally anywhere. Public + cryptographically verifiable + distributed + append-only still does not equal blockchain, as long as we're defining blockchain as something that was not invented before 2009.
- deleted 6y ago[deleted]
- space_rock 6y agoSo these hashes are distributed. How do we know they haven't been altered since future reveal? How does one find the "true" dataset? Trust random people on the internet?
- dnautics 6y agono, since it's public, if you care so much about it, you keep a periodic snapshot of the hashes. So you're trusting yourself (and math). What's missing to be a "blockchain" in (what should be) the generally accepted definition is byzantine fault tolerance.
- space_rock 6y agoRight so save some time and put the hashes in a Merkel tree and publish on the Bitcoin blockchain. Now the proof can be found trustlessly and the longest PoW points to the true dataset
- ginger_beer_m 6y agoOnce you're done building a working system to do the above, you'd have basically built a blockchain.
- smt88 6y agoUsing a very loose definition of blockchain, sure. For anything post-Satoshi, no. The extra governance layer that makes it a blockchain is also not trivial.