How this works / Signed record

Topic

Solar dynamo, activity cycle and composition

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
198e5d8c650c549166ecfcbee7e1125fa6cc28a6930904820f971b95ad0953ee
Content hash
7219ff815f0d6ce40a04e4bf36137cedee082a673660caa66567f6ad092ec1e3
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
54
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:17:50Z — the Bitcoin date is the one that counts