Previously this timestamping was accredited by notaries. This had the problems of cost and the trust in a notary did not translate well internationally.
Now it is almost free to do and the cost of manipulating a blockchain (if possible at all) far outweighs the potential gain from malice.
Could you elaborate why a blockchain is beneficial here? The use case “timestamp documents/artwork/data” does not call for a blockchain to me.
Previously this timestamping was accredited by notaries. This had the problems of cost and the trust in a notary did not translate well internationally.
Now it is almost free to do and the cost of manipulating a blockchain (if possible at all) far outweighs the potential gain from malice.