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Paranoid response: if such a versioning ledger were to exist, how could you trust it? The feasibility problem still remains (it is feasible to alter archives t

by smrq 8y ago

Paranoid response: if such a versioning ledger were to exist, how could you trust it? The feasibility problem still remains (it is feasible to alter archives that were formerly infeasible) and you now rely on trust that (1) all alterations are accompanied by a versioning notice, and (2) the summary presented in the notice is accurate and complete.

dsfyu404ed 8y ago
>Paranoid response: if such a versioning ledger were to exist, how could you trust it? Blockchain to the rescue (for real this time, I think, I'm not an expert or a blockchain fanboy). A publicly ledger that anyone can verify hasn't been tampered with is the whole point.
- cribbles 8y ago
  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.
- koverstreet 8y ago
  Really, git is a blockchain, and it's exactly what you want for this.
  - slededit 8y ago
    It’s far to easy to rewrite history in git.
    - someguydave 8y ago
      You are completely correct, I wonder why folks downvoted this.

by smrq 8y ago

dsfyu404ed 8y ago

>Paranoid response: if such a versioning ledger were to exist, how could you trust it? Blockchain to the rescue (for real this time, I think, I'm not an expert or a blockchain fanboy). A publicly ledger that anyone can verify hasn't been tampered with is the whole point.

cribbles 8y ago
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.
koverstreet 8y ago
Really, git is a blockchain, and it's exactly what you want for this.
- slededit 8y ago
  It’s far to easy to rewrite history in git.
  - someguydave 8y ago
    You are completely correct, I wonder why folks downvoted this.