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

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.