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 0x8c9c9a59ed7a697606dae1681f1a364ec0a565f5a4a4f6701b1fbe4afc09961b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c85e357d-724c-499f-841d-d33ae41fa939.json and https://artists.proofprofile.net/proofs/artist/c85e357d-724c-499f-841d-d33ae41fa939.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music Is Our Weapon - Umberto Echo Dub Mix
Music Is Our Weapon (Umberto Echo Dub Mix)