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 0x90e7fd4f098ccac8c5541adf23ea79dc3b51810664cf9a8233656012d1e145a4. 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/26ddcf71-f921-4435-8d07-edeef0f90ab1.json and https://artists.proofprofile.net/proofs/artist/26ddcf71-f921-4435-8d07-edeef0f90ab1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x3313bcd330a40856531fad9a3648a11ecee11b42c1fa0405bd6251d0a94f3762","isrc":"ES71G2239718","name":"Quítame El Teléfono - Versión Salsa","registered_at":"2026-06-07T19:18:43Z","spotify_id":"161TNbu4qNLx8cus18cylg","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 0x3313bcd330a40856531fad9a3648a11ecee11b42c1fa0405bd6251d0a94f3762. 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/161TNbu4qNLx8cus18cylg.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/161TNbu4qNLx8cus18cylg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315fcb24b241154f3197f21eb0bf173d1baa07888e9ab90598d6bba948c004d3. 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/4BqXG8Al1bDML9J8Ywapt7.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/4BqXG8Al1bDML9J8Ywapt7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0bb0b7258b96c4f4427d1fecf26765519221d6ec250096f4d3c4e0a3af455d. 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/0Mm6G77eyw6n5pTdP2NQoA.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/0Mm6G77eyw6n5pTdP2NQoA.
ZAPEROKO La Resistencia Salsera del Callao
{"copyright_id":"0xc7c2a2afa10f1b535ac7b4c456e0958b5aec697d72213489ce81259410357805","isrc":"QZGLM2170649","name":"La Cura (Homenaje a Frankie Ruiz)","registered_at":"2026-06-04T16:39:01Z","spotify_id":"6LYJBfi33xxnDrser1lU3B","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c2a2afa10f1b535ac7b4c456e0958b5aec697d72213489ce81259410357805. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6LYJBfi33xxnDrser1lU3B.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/6LYJBfi33xxnDrser1lU3B.
{"copyright_id":"0x29732efe5c80165985fa70315cb4d097967874cbf425a09fe04a6774c49b55ef","isrc":"QZHZ52062532","name":"Resistiré, la Salsa Nos Une","registered_at":"2026-06-04T15:34:12Z","spotify_id":"6Ucb5hwO3PutBdhdK2rubd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29732efe5c80165985fa70315cb4d097967874cbf425a09fe04a6774c49b55ef. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Ucb5hwO3PutBdhdK2rubd.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/6Ucb5hwO3PutBdhdK2rubd.
Por La Calle (Música Original De La Serie De Televisión)
{"copyright_id":"0xeafbdefe34fda5ac5de6366bfc8ef9e25f7379ee75b4c1a89636bf5aee1984e2","isrc":"QM6MZ2492977","name":"Asi Se Compone Un Son","registered_at":"2026-06-25T17:28:33Z","spotify_id":"4zFyG2wQs5BT0pfM11I5OH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafbdefe34fda5ac5de6366bfc8ef9e25f7379ee75b4c1a89636bf5aee1984e2. 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/4zFyG2wQs5BT0pfM11I5OH.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/4zFyG2wQs5BT0pfM11I5OH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed7dfcfe7550a2f6f9da3192fa71d864134492a1ec987768b1b9acf20990e6c. 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/3ojXtvKHVlTcC3x4DAwF7t.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/3ojXtvKHVlTcC3x4DAwF7t.
{"copyright_id":"0xd97d0a93f0e4ed5e6a69d0ae6520309d88ccad1a1f4f7474bb64be2185c3c394","isrc":"QZ93L2060254","name":"Siempre Has Sido Tú (Versión Salsa)","registered_at":"2026-06-11T04:26:51Z","spotify_id":"0DeYPGQlzkSJwcRrmKIs1I","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97d0a93f0e4ed5e6a69d0ae6520309d88ccad1a1f4f7474bb64be2185c3c394. 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/0DeYPGQlzkSJwcRrmKIs1I.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/0DeYPGQlzkSJwcRrmKIs1I.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45288763280e4487deeba2d5acc75f3970e0e935886f12b26d90b981c4a1a00. 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/1t5xwoI3hQIrt5E2k365nl.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/1t5xwoI3hQIrt5E2k365nl.
{"copyright_id":"0xd80fc7218fa2709759db5690c023a9c21800e4f0dc6efa1d5ee6eb5321709dff","isrc":"PEBQ91721796","name":"Por Culpa de Alguien","registered_at":"2026-06-17T20:55:21Z","spotify_id":"3QJBA49QdKXcENc6VaRsFs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80fc7218fa2709759db5690c023a9c21800e4f0dc6efa1d5ee6eb5321709dff. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3QJBA49QdKXcENc6VaRsFs.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/3QJBA49QdKXcENc6VaRsFs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a6959f363a10c50b9f4fb8f044187fc513df522bf45a428a5ea685d6cd2cca. 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/2PiahV44kiM00tzwxDBCzW.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/2PiahV44kiM00tzwxDBCzW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4aaf0688ff81fc01536247db64c158b5402c22d00b3f5ee37b26d2b8a719a24. 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/7ggjq5GWDLy4Hq6t6X2FfR.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/7ggjq5GWDLy4Hq6t6X2FfR.
{"copyright_id":"0x9e14a7ebc690d3e32aca1699fe10ffef7c1a229e314c4e62b265dfa689ad0e11","isrc":"PEBQ91721799","name":"Con la Misma Moneda","registered_at":"2026-06-10T15:34:15Z","spotify_id":"3VsGfqKDVvRruHyBDgADa5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e14a7ebc690d3e32aca1699fe10ffef7c1a229e314c4e62b265dfa689ad0e11. 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/3VsGfqKDVvRruHyBDgADa5.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/3VsGfqKDVvRruHyBDgADa5.
Cosas del Amor (Feat. Combinación de la Habana)
{"copyright_id":"0xee489fb75c6de4ebdaaad26b387772910cd068a498b8c00fd1a6bd3c9cda9f05","isrc":"PEBQ91721800","name":"Cosas del Amor (Feat. Combinación de la Habana)","registered_at":"2026-06-06T16:03:38Z","spotify_id":"4TVqZUrXahVBWMcqvBjcmH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee489fb75c6de4ebdaaad26b387772910cd068a498b8c00fd1a6bd3c9cda9f05. 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/4TVqZUrXahVBWMcqvBjcmH.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/4TVqZUrXahVBWMcqvBjcmH.