VOSgqcSyGdPhGWP

Bitcoin may be useful but the calculations done for its proof-of-work don't do anything useful outside of Bitcoin. The same is true of Chia. It uses up hard drive space as a mechanism to validate transactions but IIRC that space is essentially random bytes. On the other hand, with arweave or filecoin you are storing files for people.

Why not do something useful with the space like FileCoin or Arweave?

And in late 2020: "I am content in here. I have friends. The food is good. All is well. Know that if I hang myself, a la Epstein, it will be no fault of mine."

https://archive.ph/peexn

Almost all of it. The only thing it needs to contain is name, whether you are "immune" (vaccinated or natural antibodies), and a signature to verify it hasn't been tampered. When you were born, which vaccine you received, and when you received it are not necessary to show that you won't be spreading the disease.

This includes more information than necessary to verify whether a person has been vaccinated.