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 0x3eb42e066ab002f9e58ba60d552e75c442f459025c7ad72238161879143b012a. 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/e65a5b21-24df-4509-8cf6-46f9b8d5d568.json and https://artists.proofprofile.net/proofs/artist/e65a5b21-24df-4509-8cf6-46f9b8d5d568.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xea915f956064dfbcb20d469447d0a48a48b6d5ba613c7f120bdea47861eaed10. 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/23pO4BPyb3zGXgtycLUw5G.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/23pO4BPyb3zGXgtycLUw5G.
Cosa de Dos (Versión Acústica) [Directo Madrid] - En Vivo
El Amor No Duele (Versión Acústica) [Directo Madrid] - En Vivo
Esperaré Despierta (Versión Acústica) [Directo Madrid] - En Vivo
Nada (Versión Acústica) [Directo Madrid] - En Vivo
Rompe el Mar (Versión Acústica) [Directo Madrid] - En Vivo
Perdición (Versión Acústica) [Directo Madrid] - En Vivo
Algo Más (Versión Acústica) [Directo Madrid] - En Vivo
Flores de Alquiler (Versión Acústica) [Directo Madrid] - En Vivo
Me Muero (Versión Acústica) [Directo Madrid] - En Vivo
Por el Boulevard de los Sueños Rotos / El Sol No Regresa (Versión Acústica) (with Alvaro Urquijo) - En Vivo
Sueños Rotos (Versión Acústica) [Directo Madrid] - En Vivo
Para No Decirte Adiós (Versión Acústica) [Directo Madrid] - En Vivo
La Frase Tonta de la Semana (Versión Acústica) [Directo Madrid] - En Vivo
Qué Fui para Ti (Versión Acústica) [Directo Madrid] - En Vivo
Tu Peor Error (Versión Acústica) [Directo Madrid] - En Vivo
Daría (Versión Acústica) [Directo Madrid] - En Vivo
Niña (Versión Acústica) [Directo Madrid] - En Vivo
{"copyright_id":"0x4d8a38e757cebd02b704a3eab419b0cf9d80493e5918d024fb4643aeb907ab6b","isrc":"MXF010800701","name":"Niña (Versión Acústica) [Directo Madrid] - En Vivo","registered_at":"2026-06-28T20:14:32Z","spotify_id":"4NYkOj74ff3KajXZIMyg7T","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8a38e757cebd02b704a3eab419b0cf9d80493e5918d024fb4643aeb907ab6b. 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/4NYkOj74ff3KajXZIMyg7T.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/4NYkOj74ff3KajXZIMyg7T.
{"copyright_id":"0x0629cff5ddefd74fbfa0c53fa1de45f310d749e44654473a469fc0f9eed8ec01","isrc":"MXF010801020","name":"Que Te Quería","registered_at":"2026-06-25T16:25:19Z","spotify_id":"6Af2Mp3rgLs2En87UAlyTM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0629cff5ddefd74fbfa0c53fa1de45f310d749e44654473a469fc0f9eed8ec01. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Af2Mp3rgLs2En87UAlyTM.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/6Af2Mp3rgLs2En87UAlyTM.
Esperaré Despierta (Versión Acústica) - En Vivo
Rompe el Mar (Versión Acústica) - En Vivo
Flores de Alquiler (Versión Acústica) - En Vivo
El Sol No Regresa (Versión Acústica) - En Vivo
Algo Más (Versión Acústica) (with Miguel Inzunza) - En Vivo
Busco Tu Piel (Versión Acústica) - En Vivo
Cuando Acaba la Noche (Versión Acústica) - En Vivo
Recuérdame Con Cartas Y Algo Más... Los Exitos (Deluxe Edition)
Recuérdame Con Cartas Y Algo Más... Los Exitos
{"copyright_id":"0x504bc8be2a26a7d0f1bcedaaa117691d1e56d5aeb94ac350ef1baaa5b13fb904","isrc":"MXF010400023","name":"Algo Más","registered_at":"2026-06-06T16:42:41Z","spotify_id":"69KuwaZtMIo1ZjO2FnfF4g","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504bc8be2a26a7d0f1bcedaaa117691d1e56d5aeb94ac350ef1baaa5b13fb904. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/69KuwaZtMIo1ZjO2FnfF4g.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/69KuwaZtMIo1ZjO2FnfF4g.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3557c8193d802f39e6d187104bc59144199194fd18132c1b1deb4631a3014136. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4h261iAG5eqp42qi9uA80q.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/4h261iAG5eqp42qi9uA80q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3e1927639b11d97a1accccfbffbaaa004d65a5a0ce236c698335c77fd208f7. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3umt8VD6kbheNv1LgYj965.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/3umt8VD6kbheNv1LgYj965.
{"copyright_id":"0x504bc8be2a26a7d0f1bcedaaa117691d1e56d5aeb94ac350ef1baaa5b13fb904","isrc":"MXF010400023","name":"Algo Más","registered_at":"2026-06-06T16:42:41Z","spotify_id":"1ZWSZz3ezqSfQEW4qu414C","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504bc8be2a26a7d0f1bcedaaa117691d1e56d5aeb94ac350ef1baaa5b13fb904. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1ZWSZz3ezqSfQEW4qu414C.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/1ZWSZz3ezqSfQEW4qu414C.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3557c8193d802f39e6d187104bc59144199194fd18132c1b1deb4631a3014136. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1lXXSm2OeNaHBlEu03AzD2.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/1lXXSm2OeNaHBlEu03AzD2.
{"copyright_id":"0x504bc8be2a26a7d0f1bcedaaa117691d1e56d5aeb94ac350ef1baaa5b13fb904","isrc":"MXF010400023","name":"Algo Más","registered_at":"2026-06-06T16:42:41Z","spotify_id":"6YCzji8fZYobeeByNoYNh5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504bc8be2a26a7d0f1bcedaaa117691d1e56d5aeb94ac350ef1baaa5b13fb904. 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/6YCzji8fZYobeeByNoYNh5.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/6YCzji8fZYobeeByNoYNh5.
{"copyright_id":"0xad3e1927639b11d97a1accccfbffbaaa004d65a5a0ce236c698335c77fd208f7","isrc":"MXF010600412","name":"Me Muero","registered_at":"2026-06-05T21:01:00Z","spotify_id":"0BKcgDA6YWEJSMvhf19ueZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3e1927639b11d97a1accccfbffbaaa004d65a5a0ce236c698335c77fd208f7. 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/0BKcgDA6YWEJSMvhf19ueZ.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/0BKcgDA6YWEJSMvhf19ueZ.
Éxitos del Pop en Español de los Años 2000
{"copyright_id":"0xad3e1927639b11d97a1accccfbffbaaa004d65a5a0ce236c698335c77fd208f7","isrc":"MXF010600412","name":"Me Muero","registered_at":"2026-06-05T21:01:00Z","spotify_id":"3gnUhfve9KfjrBca9s1weI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3e1927639b11d97a1accccfbffbaaa004d65a5a0ce236c698335c77fd208f7. 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/3gnUhfve9KfjrBca9s1weI.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/3gnUhfve9KfjrBca9s1weI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3e1927639b11d97a1accccfbffbaaa004d65a5a0ce236c698335c77fd208f7. 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/01Yvg2a8H0Jj49pj8Hi6ND.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/01Yvg2a8H0Jj49pj8Hi6ND.
{"copyright_id":"0x0629cff5ddefd74fbfa0c53fa1de45f310d749e44654473a469fc0f9eed8ec01","isrc":"MXF010801020","name":"Que Te Quería","registered_at":"2026-06-25T16:25:19Z","spotify_id":"2cTim94kiFUEMvjRnBWuaa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0629cff5ddefd74fbfa0c53fa1de45f310d749e44654473a469fc0f9eed8ec01. 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/2cTim94kiFUEMvjRnBWuaa.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/2cTim94kiFUEMvjRnBWuaa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3e1927639b11d97a1accccfbffbaaa004d65a5a0ce236c698335c77fd208f7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/03jL48Z4PQ0pwWsQhxYaF6.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/03jL48Z4PQ0pwWsQhxYaF6.
{"copyright_id":"0xdceb4ad724e2e474595f1eb721e4d16d4d3e56efb6a989f2463df2c458d2769f","isrc":"MXF011100419","name":"Que Te Quería - Bachata Version","registered_at":"2026-06-28T18:24:10Z","spotify_id":"5P5pbiZY56jZtLP9SJS6TT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdceb4ad724e2e474595f1eb721e4d16d4d3e56efb6a989f2463df2c458d2769f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5P5pbiZY56jZtLP9SJS6TT.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/5P5pbiZY56jZtLP9SJS6TT.