How this works / Signed record

Problem revision

How life came to use only one molecular handedness

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
c9f8615966d6babc3a91fe7b5dabb8ff900ccc227835467260320f6f068052fc
Content hash
c77430b65b9e369283d429834aa06791169e98dd8aee375093838be063231745
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
817
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:17:57Z — the Bitcoin date is the one that counts
Download proof (bundle) Record as JSON Keys