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 0xd1151eff46bc1104b883ea93602905dfa8450728ada004e2e14a6b83c8525b6f. 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/c1e49c41-385d-4ad2-8b2f-b4f3c07e8896.json and https://artists.proofprofile.net/proofs/artist/c1e49c41-385d-4ad2-8b2f-b4f3c07e8896.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Irsk Medley (Boulavogue / I'll Tell My Ma)
Irsk Medley (Boulavogue/ I'll Tell My Ma)
Attom Slottet (Beneath the Richmond Castle)
Attom Slottet (Beneath The Richmond Castle)