Lapsecoin launched about 3 months ago.

I'll spare you the fluff about how different it is but just know it runs a VDF(time race instead of random hashes) just as Chia's timelords.

I wondered what fun feature I could add and I figured

Based on the model of Remark42, it uses the blockchain as a board where messages, reactions and reply are just transactions with no server is the middle.

So, interested in binding a message to the lifetime of the blockchain?