How this works / Signed record

Problem revision

How strongly have human-made aerosols cooled the climate?

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
8d73aedcedfd84fc137ce74bb91054ed79480982ef07f7cba24e34653bc8127b
Content hash
81092f657265481e50fa7e2ec1e95ae1355e5abc5e2e2817ceb049125ec25c41
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
1,295
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:18:02Z — the Bitcoin date is the one that counts