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 0xc3abe25ef639970c95af844da9ad1f3b0e1ce99e5af2b11b02e67161ffebbaf3. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d7676622-24d7-483b-b584-6bd532851cbf.json and https://artists.proofprofile.net/proofs/artist/d7676622-24d7-483b-b584-6bd532851cbf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Den Nye Danske Sommer (feat. Jonas Bjerre)
På Danske Læber (Leonard Cohen-Sange I Danske Fortolkninger)