Hubert Wolf (born 26 November 1959 in Wört, Baden-Württemberg) is a German church historian and professor at the University of Münster. He was awarded a Gottfried Wilhelm Leibniz Prize in 2003. In 20
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730eab9dc6a9ddb1a09304c0a32dfded93e7840731331c0f0b004229b237e26b. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5e910fe-6497-4de0-9d34-4a360b6c4e94.json and https://artists.proofprofile.net/proofs/artist/d5e910fe-6497-4de0-9d34-4a360b6c4e94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Weihnachtliche Blasmusik - Christmas Brass