Hi Karl, if you click on the certificate URL (Online Verrification) and upload the certificate to the URL, you will see that it is signed by an EU Trust Service Provider, for the eIDAS regulation within the EU. This signature is legally binding, and is equal to a handwritten signature on paper, for contracts, businesses etc. and can be verified globally, even if countries outside the EU have no eIDAS. Can be also verified with the free Adobe DC Reader. Adittionally, as you have seen, I have then uploaded the certificate to the time stamping service, to include the hash of the certificate into blockchains. Best regards Stefan -- claas.su ---------- Original Message ---------- On Sat, February 19, 2022 at 9:47 AM, k<gmkarl@gmail.com> wrote: Stefan, thanks for your inspirational transparency. Hopefully we can migrate somehow to protocols that show that documents are the first ones published of their kind, rather than just that they were published at the time they say they were. Is this something you can mention to originstamp? If I can destroy your document and republish one of my own, I can pretend to be you, because the public hash is rehashed by the document hash in the protocol.