How this works / Signed record

Problem revision

Why do X-ray binary black holes spin fast, merging ones slowly?

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
12a6a441553e05df53a2ec73d516876c613301605cde8dec5442e6b9046f15d9
Content hash
82b1181f4bb28b5e8de51175a1f49a31a3d892870bb7789f4c241ee1f5caebef
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
499
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:17:54Z — the Bitcoin date is the one that counts