How this works / Signed record
Problem revision
This record was signed by PubPhys and added to the public log. Download the proof and check it with the open verifier: it recomputes every fingerprint, checks the PubPhys signature against the published key, finds the entry in the log and checks the Bitcoin date, without relying on this site.
- Record hash
- eaa227385001617ab0373d94a18e6cd31f78259b8fee859d1f4f8f931647902b
- Content hash
- 8192eb7c0cb86c62341edb233ec9a54a9f967f5f604d9bfc15a91063a57d4822
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 870
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Waiting for Bitcoin (usually a few hours)
- Created (claimed)
- 2026-10-03T07:17:58Z — the Bitcoin date is the one that counts