I love that idea.
I have an OP_RETURN tx ready to be broadcasted; I didn’t think about using the utxo to chain life events but that’s super cool!
Discussion
nice! OP_RETURN is one way to record events, the other is to "tweak" the transaction, which gives more privacy and is a bit cheaper ... this is also how you can do verifiable history, distributed ledgers and smart contracts with nostr