Well min 8:25 you said "metadata is a technobabble nonsense" but it's actually the option that makes the most sense.
Satoshi_Nakamoto.asc could had been served over HTTP with 'X-Robots-Tag: none, noarchive' on the HTTP header.
What the chain says
- Block
- 671 324
- Time
- 2021-01-24T01:49:18Z
- Signer
- 1LPJGcb1peokEcZoXVdQijgrbZoKQnctKQ
- App
- twetch
- Type
- post
- Content type
- text/plain
- Name in tx
- twetch#1341
Fields the transaction did not carry are omitted. Open the payload to see the bytes as stored.
Signed by
1LPJGcb1peokEcZoXVdQijgrbZoKQnctKQ Verified