How this works / Signed record

Topic

Hubble tension between early and late universe

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
7274d4f6495a643569c4fecb6957a3a928df8172b93a2b26d1dc5043075bd891
Content hash
31345f0ffd17639d76a103f857eb6928b6b804749570e16ef97bbf947e0a11bc
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
188
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:17:51Z — the Bitcoin date is the one that counts