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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec831524a430a088b6536149e85f351b6624167792626c998811d6b34e5989b8. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0b6ad54-d862-4d71-82d9-1ecc3a7173dc.json and https://artists.proofprofile.net/proofs/artist/b0b6ad54-d862-4d71-82d9-1ecc3a7173dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hård Banan (Fra DR Ramsjangs "Madpakken")
For Fuld Musik - 25 Danske Pop & Rock Hits Vol. 2