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
- af7d1af886865fe1e742dd56f8da8bfe62775ac6d85100ef33f4d91d86af9ddb
- Content hash
- c2f58edc1d29f9f8f008e172223e6e7f213f123ba72bc83ae9f6e02a1ea02a5f
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 576
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:17:55Z — the Bitcoin date is the one that counts