I agree. The append-only nature of blocks chained together using hashes can build the most tamper-proof transaction log i can imagine. Even without mining/conse

I agree. The append-only nature of blocks chained together using hashes can build the most tamper-proof transaction log i can imagine. Even without mining/consensus algorithm and with it only being centrally host (but still published), i can upload a file to e.g. some government agency, see the file hash appear in the block and save the block hash. As long as that same block hash is used to continue the chain, upcoming block hashes would have to change to remove my entry from that chain-log. I would love such cryptographically safe systems actually being used, especially whenever we don't trust the db operator. E.g. for Reddit admins it might lessen the appeal to alter posts again :D