How this works / Signed record

Problem revision

Superconductivity in the Hubbard model with next-nearest-neighbor hopping

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
2a1f5e43304b7e3904bf4fcf2bff8d839e39966d4db16a5423678d47ceaf84d0
Content hash
cb7401ee48dc6ad61be96a05fc0966111a857fa0d0c0004e3cb370c11b67e93a
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
1,027
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:18:00Z — the Bitcoin date is the one that counts