Quote from: BlackHatCoiner on Today at 07:58:11 PM

Quote from: oryhp on Today at 03:38:19 PM

Rather than signing dates, they should sign a hash of the block header that was mined 10 minutes ago.

That's indeed smarter than a date, but note that I asked to provide the topic ID too.

Yes, it would prove more eg. that the signature was created recently.

But if we use a Bitcoin address as the signature message, so we can build a 'signature chain' where the next owner can sign it and transfer it to the next owner.

Created a 'signature chain' transfer in the thread old Bitcoin addresses as 'NFT' on the Bitcoin blockchain - a signature chain
https://bitcointalk.org/index.php?topic=5425241.msg61393177#msg61393177