3 ms·

You've described merging/replication which has nothing to do with blockchain.

• prepend 8y ago
  That’s right, the blockchain part just adds in immutability of data and being able to trust different nodes. What database models have replication/merging models provide assurance of data integrity and perpetual versioning?
  • MichaelGG 8y ago
    Blockchain adds neither things you mention. Both can be accomplished with digital signatures and timestamping, which are not new. Blockchain alone doesn't prevent you from modifying data -- just rewrite the entire chain. As an example, Bitcoin only prevents this with proof of work, but only following accumulated difficulty prevents someone from thinking my privately-mined chain is true.