1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8a43c81b50c9cf99470885d69ee2c4043b6ccf249f45dc99e61eb6e13e4e45. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97071fef-fa38-4c56-891a-38de5fabfc26.json and https://artists.proofprofile.net/proofs/artist/97071fef-fa38-4c56-891a-38de5fabfc26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Reinlender Etter Thorvald Tronsgård (Schottische After Thorvald Tronsgård)
Masterpieces from Norway - Old Time Dance Music
Pols Etter Peder Husom (Pols Dance Tune After Peder Husom)
Tre dager til ende: Bryllupsmusikk fra hele landet
Tre dager til ende - Bryllupsmusikk fra hele landet
Reinlender Etter Thorvald Tronsgård - Schottische After Thorvald Tronsgård
Masterpieces From Norway - Old Time Dance Music
Pols Etter Peder Husom - Pols Dance Tune After Peder Husom