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 0x49ef6e5ede9e1f8a1031ca57906dae2ce5897a401ffbec94e06ced5ea0c8de27. 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/cd035056-2e44-42b1-9666-6e637fee12bd.json and https://artists.proofprofile.net/proofs/artist/cd035056-2e44-42b1-9666-6e637fee12bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xd6a3b64d7279f1050874cfafba5a6cb6de6d2fab0d6a014535195a1af0f6a961","isrc":"MXB951700088","name":"Se Suponia","registered_at":"2026-06-29T07:45:26Z","spotify_id":"3Zauo5Mrnh2PCVfDP1SWyX","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 0xd6a3b64d7279f1050874cfafba5a6cb6de6d2fab0d6a014535195a1af0f6a961. 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/3Zauo5Mrnh2PCVfDP1SWyX.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/3Zauo5Mrnh2PCVfDP1SWyX.
Yo Ya Tengo Quién Me Quiera (feat. Los Buitres de Culiacán)
{"copyright_id":"0xfb93ad5572e2883c33cac0dbe5904eada01e3fb11a80350021311d1f72bc9a12","isrc":"MXB951700060","name":"Si No Estas Tú","registered_at":"2026-06-29T07:48:31Z","spotify_id":"3sgdUyeTTCfSQYhc6lkvRm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb93ad5572e2883c33cac0dbe5904eada01e3fb11a80350021311d1f72bc9a12. 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/3sgdUyeTTCfSQYhc6lkvRm.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/3sgdUyeTTCfSQYhc6lkvRm.
{"copyright_id":"0x1faac8274ae416f483eba5a7775ab21e87ffefc22aa739b9237b944329408c84","isrc":"QZDQH2255180","name":"Se los Dedico","registered_at":"2026-06-29T07:44:48Z","spotify_id":"5xuFreNYS4V6GAvbFM9qSy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1faac8274ae416f483eba5a7775ab21e87ffefc22aa739b9237b944329408c84. 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/5xuFreNYS4V6GAvbFM9qSy.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/5xuFreNYS4V6GAvbFM9qSy.
Las Mismas Con La Misma Tierra, Vol. 2 (En Vivo)
{"copyright_id":"0x1f684aa7c37004486af753662cb4f3014bde0df639ccb5d2fd5bffe59c994f98","isrc":"QZ7HP2420912","name":"Sonora y Sus Ojos Negros - En Vivo","registered_at":"2026-06-24T16:52:50Z","spotify_id":"7m9KROSOoZOFtpXozQzpTC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f684aa7c37004486af753662cb4f3014bde0df639ccb5d2fd5bffe59c994f98. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7m9KROSOoZOFtpXozQzpTC.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/7m9KROSOoZOFtpXozQzpTC.
Popurri: Un Puño De Tierra / El Corrido De Mazatlán - En Vivo
Banda La Indicada La Mejor De Mazatlán Sinaloa
{"copyright_id":"0x048b46fe19c4b8bd2bd2c188d916ef0257b391cd6cea70175fc04c71bb703fc0","isrc":"QZ7HP2420916","name":"Popurri: Un Puño De Tierra / El Corrido De Mazatlán - En Vivo","registered_at":"2026-06-08T21:19:25Z","spotify_id":"2X7rturj0vQyTcr67yrycX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048b46fe19c4b8bd2bd2c188d916ef0257b391cd6cea70175fc04c71bb703fc0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2X7rturj0vQyTcr67yrycX.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/2X7rturj0vQyTcr67yrycX.