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
- 617bd030bbac21a4ac2faa15cb22df6fdddf764d742e3fdb9ed44910ab48e5c0
- Content hash
- 86a51cc10f425369ce06c181259ff9288cafcab3e20afb30bc37e1baa106f892
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 364
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:17:53Z — the Bitcoin date is the one that counts