3 ms·

Why not just provide a hash for each version of the document?

• rwcarlsen 8y ago
  But that just changes the problem to one of archiving the hashes immutably.
  • fuzzybeard 8y ago
    Which is what blockchain does. We're experimenting with using it to create audit logs of data, which can't be tampered with.
• reubenmorais 8y ago
  That's essentially what a blockchain is, except you also include the previous hash in the version you're hashing, so that changing one record invalidates all future hashes.
• RileyJames 8y ago
  That’s exactly how this kind of this is done, using a blockchain. Here is an example of using Tierion (blockchain) to stores hashes of accounting documents, in order to create a probable audit log. https://medium.com/tierion/xero-integrates-with-tierion-to-secure-accounting-data-using-chainpoint-5ec6b2a1a5c6 https://medium.com/tierion/xero-integrates-with-tierion-to-s... It seems like the same concept would apply to storing hashes of any other document, such as a newspaper article.