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 0x08342bdbb6a73bac01c8681ab44f6cf35e51ed985defca4d66068170567cf77c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8198c19d-5c86-451a-9725-66ee64d1e027.json and https://artists.proofprofile.net/proofs/artist/8198c19d-5c86-451a-9725-66ee64d1e027.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Banda Líbanos & Forrozão Tropykália, Vol. 1
Pot-Pourri/ Aguenta Coração e a Minha História
{"copyright_id":"0xc9984d7d66adf1171f89969e2bb0dc7a2e49e6c5e2c84a03b33fb3eab9c1b0e0","isrc":"BRBNL2000030","name":"Tarde Demais - Ao Vivo","registered_at":"2026-06-29T14:41:43Z","spotify_id":"75J8vKx6JhKUgfE4N0E3bU","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9984d7d66adf1171f89969e2bb0dc7a2e49e6c5e2c84a03b33fb3eab9c1b0e0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/75J8vKx6JhKUgfE4N0E3bU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/75J8vKx6JhKUgfE4N0E3bU.