This is quite useful. But to have full confidence in it, I&#x27;d like to see:<p>1) No reliance on external archives, so all the data required to prove a timestamp should be automatically downloaded after the stamp has hit the blockchain. This should certainly include the necessary subset of the &quot;OriginStamp archives&quot;. I&#x27;m not sure if it needs to include the blockchain or not.<p>2) Automatic verification that my requested timestamps have hit the blockchain on schedule and the data required to prove the timestamp downloaded and saved.<p>Both of these could be done in client software - I have no objection to the principle of the system which seems sound to me.