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
- e1a967ddc136d31a17c8d2e930931278405fcb1dad85e098eb7ab124332911b5
- Content hash
- 4d68a78f950c21580ce509a1c042bb32c2a0a5b2c967752d7e49e13becf964cd
- Signed by
- c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
- Log entry
- 1,987
- Checkpoint
- Size 2,123, being published
- Bitcoin date
- Block 969,698
- Created (claimed)
- 2026-10-03T07:18:09Z — the Bitcoin date is the one that counts