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 0x8a565387cc786aa0805788997102890d5a0fc1a32b1434f1ed5b0931f29ab603. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7df28563-8e2a-46f1-9e5b-7c70acbfc7ae.json and https://artists.proofprofile.net/proofs/artist/7df28563-8e2a-46f1-9e5b-7c70acbfc7ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hubo Distancias en un Curioso Baile Matinal (Parte l)
Hubo Distancias en un Curioso Baile Matinal (Parte ll)
Hubo Distancias en un Curioso Baile Matinal (Parte I)
Hubo Distancias en un Curioso Baile Matinal (Parte II)
{"copyright_id":"0xe71b763fc2c95acf757c470c3e4e9c4b2cff42fcfe9bb12efbde0e501b59a702","isrc":"QM4TW1948271","name":"El Gato de la Calle Negra","registered_at":"2026-06-07T03:37:09Z","spotify_id":"7H9SmSwJugSwDK5k41Oilf","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 0xe71b763fc2c95acf757c470c3e4e9c4b2cff42fcfe9bb12efbde0e501b59a702. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7H9SmSwJugSwDK5k41Oilf.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/7H9SmSwJugSwDK5k41Oilf.
{"copyright_id":"0x24c013e16382a1794cb7447bbc546e72d96a2b1032534da19efd8d69be5ded05","isrc":"QM4TW1948273","name":"Siempre Es Lo Mismo Nena","registered_at":"2026-06-07T15:34:33Z","spotify_id":"4DRyuLVX90o2LObxvKqyfS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c013e16382a1794cb7447bbc546e72d96a2b1032534da19efd8d69be5ded05. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4DRyuLVX90o2LObxvKqyfS.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/4DRyuLVX90o2LObxvKqyfS.
{"copyright_id":"0x376dd0fa1345b98bb9e191b453be957b56969fbdc9bb201dd2533afe7668b0dc","isrc":"QM4TW1948284","name":"Sandwiches de Miga","registered_at":"2026-06-09T20:51:44Z","spotify_id":"50ihHLawvNUzA8BRr37cjq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376dd0fa1345b98bb9e191b453be957b56969fbdc9bb201dd2533afe7668b0dc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/50ihHLawvNUzA8BRr37cjq.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/50ihHLawvNUzA8BRr37cjq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5f4e8965f4e8689b40d47224efd9a24979577405f64c0cc19461d033309cf8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7cAuUjYvY3t0s2twE8TUE0.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/7cAuUjYvY3t0s2twE8TUE0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590fad361af52a5312f075c4740ae13b694ed7bcc673814fe710143f6e4be6ce. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Zl5eA2p9E4GynO3phjszE.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/1Zl5eA2p9E4GynO3phjszE.
{"copyright_id":"0x27f245dbd6da5cbcdb5cc7dcfea00ecfa73d073a0bef11fef48db91d26bd615c","isrc":"QM4TW1950443","name":"Ruta 66","registered_at":"2026-06-05T17:56:53Z","spotify_id":"6sNBVMxGN6D9t4b9e2fnEN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f245dbd6da5cbcdb5cc7dcfea00ecfa73d073a0bef11fef48db91d26bd615c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6sNBVMxGN6D9t4b9e2fnEN.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/6sNBVMxGN6D9t4b9e2fnEN.
{"copyright_id":"0x38b57efae7f1a90b2dc56ff0c45c859899fbc6a0b27a33fbdebee1cd43381da8","isrc":"QM4TW1950449","name":"Malas Compañias","registered_at":"2026-06-09T20:12:40Z","spotify_id":"2O5jFWn1YdncQbx5R8ORZA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b57efae7f1a90b2dc56ff0c45c859899fbc6a0b27a33fbdebee1cd43381da8. 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/2O5jFWn1YdncQbx5R8ORZA.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/2O5jFWn1YdncQbx5R8ORZA.
{"copyright_id":"0xa7fd18cc1c9cc46522f82952f8cf39e9516f0c6c2efa6bd3c39941113b3dad7a","isrc":"QM4TW1950459","name":"Vine Cruzando el Mar","registered_at":"2026-06-11T17:56:14Z","spotify_id":"4dbXNh1iUS2H1xKBYUAjbq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fd18cc1c9cc46522f82952f8cf39e9516f0c6c2efa6bd3c39941113b3dad7a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4dbXNh1iUS2H1xKBYUAjbq.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/4dbXNh1iUS2H1xKBYUAjbq.