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 0x37196f159608173a7cfa720dc6588aac9590d22737d77b954c6546a97a6f2930. 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/719fe22b-3073-4ef7-aaac-c7cd3528d9de.json and https://artists.proofprofile.net/proofs/artist/719fe22b-3073-4ef7-aaac-c7cd3528d9de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Querida Isabel - Tus Mejores Canciones (Remasterizado 2022)
Ahora Me Ha "Tocao" a Mí - Remasterizado
Sevillanito... Sevillanito - Remasterizado
Niña Isabela (Romancillo Gaditano) - Remasterizado
Vente al Rocio (Sevillanas) - Remasterizado
Vamonos a Torea (Chufliyas) - Remasterizado
¡Ay Torre, Torremolinos! - Remasterizado
Me Estoy Muriendo a Chorros - Remasterizado
Te Quiero, Vida, Te Quiero - Remasterizado
¡Ay Curro, Curro Romero! - Remasterizado
{"copyright_id":"0xe641e62d19a8c10b3aa49b011418adbc5e101d41071a31c2faec749e0acd4b5a","isrc":"ES5029000033","name":"Francisco Alegre","registered_at":"2026-06-29T06:34:32Z","spotify_id":"3jd7ZbQEhJ2nLUCcSGtE9q","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 0xe641e62d19a8c10b3aa49b011418adbc5e101d41071a31c2faec749e0acd4b5a. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3jd7ZbQEhJ2nLUCcSGtE9q.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/3jd7ZbQEhJ2nLUCcSGtE9q.
{"copyright_id":"0x2bf44e015a264a30a306586e11956ca6adb089c076ac83a94bb53fabc1420cf4","isrc":"ES5709905803","name":"Silencio, Cariño Mío","registered_at":"2026-06-27T05:24:33Z","spotify_id":"3WCbeVhg6sbwvICcNbUEb8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf44e015a264a30a306586e11956ca6adb089c076ac83a94bb53fabc1420cf4. 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/3WCbeVhg6sbwvICcNbUEb8.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/3WCbeVhg6sbwvICcNbUEb8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858ded7a7ab7486713e9514252446de96ff8782f817f2b300c3c426cd23fd6fc. 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/3D1IUyYfRFex8Owv4AY64T.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/3D1IUyYfRFex8Owv4AY64T.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82db750dd9862d55ce08769337ce31a1eac8c24732f394b752ab1888d4bf91d. 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/6Rjn265S3aPjMJQ5Y58ofZ.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/6Rjn265S3aPjMJQ5Y58ofZ.
{"copyright_id":"0xbe8a8b01f2eac620fa1c82eccbf2fd96c0669014b9d93534df3c083a4bf5c529","isrc":"ES5709905812","name":"Tengo Miedo","registered_at":"2026-06-25T22:36:33Z","spotify_id":"12iV4NKtFNcCzss3fpLQFv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8a8b01f2eac620fa1c82eccbf2fd96c0669014b9d93534df3c083a4bf5c529. 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/12iV4NKtFNcCzss3fpLQFv.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/12iV4NKtFNcCzss3fpLQFv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ff76edd4f9d8f2c6c82e018f08b9d992cd71e3877df80d54f9eb1b13286ac8. 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/5Y1OG7Dn4ketpsmpVhXKwd.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/5Y1OG7Dn4ketpsmpVhXKwd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810b6cce33287af6c7af46541ba153b2f9bc3645f57491313b7eb4eeadb7bbbc. 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/15xmYq5HEmlmZ0b7o1IdeY.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/15xmYq5HEmlmZ0b7o1IdeY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aafbb53e97a0c2f8e563a4623938de718f645d5c269cf0b1779e6e4dbc5a95b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5kn302zWutUqK1GjvOZlga.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/5kn302zWutUqK1GjvOZlga.
Que Se Busquen a Otra - Antipaparazzi Mix
Se Me Enamora el Alma - Fab 90'S Club Mix
Hoy Quiero Confesarme - Testify Extended Club
Esta Tarde Vi Llover (Dueto) - Bonus Track
Pasion Y Deseo (Sus Grandes Exitos De La Copla Y De La Balada Romantica)
{"copyright_id":"0xe641e62d19a8c10b3aa49b011418adbc5e101d41071a31c2faec749e0acd4b5a","isrc":"ES5029000033","name":"Francisco Alegre","registered_at":"2026-06-29T06:34:32Z","spotify_id":"5BRSXjYUoVEc6K5SicEy9m","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe641e62d19a8c10b3aa49b011418adbc5e101d41071a31c2faec749e0acd4b5a. 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/5BRSXjYUoVEc6K5SicEy9m.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/5BRSXjYUoVEc6K5SicEy9m.
Los Dúo - Colección Completa (Vol. 1 + Vol. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d9ea9174c1b656bd91adf626329c3cec15bc4670ddbe5af82980ec12a7e9bb. 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/1CN5nTHVtr54v9q7keiBbR.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/1CN5nTHVtr54v9q7keiBbR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aafbb53e97a0c2f8e563a4623938de718f645d5c269cf0b1779e6e4dbc5a95b. 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/6ThSpkYghIHpfj0ZE3fN7J.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/6ThSpkYghIHpfj0ZE3fN7J.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d9ea9174c1b656bd91adf626329c3cec15bc4670ddbe5af82980ec12a7e9bb. 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/0obAwxBfoPsG1L0PgT0f02.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/0obAwxBfoPsG1L0PgT0f02.
{"copyright_id":"0x10d9ea9174c1b656bd91adf626329c3cec15bc4670ddbe5af82980ec12a7e9bb","isrc":"MXUM71401755","name":"Así Fue","registered_at":"2026-06-04T08:52:05Z","spotify_id":"7HGymGTKfdACYRI4g7H2Gu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d9ea9174c1b656bd91adf626329c3cec15bc4670ddbe5af82980ec12a7e9bb. 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/7HGymGTKfdACYRI4g7H2Gu.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/7HGymGTKfdACYRI4g7H2Gu.
{"copyright_id":"0x10d9ea9174c1b656bd91adf626329c3cec15bc4670ddbe5af82980ec12a7e9bb","isrc":"MXUM71401755","name":"Así Fue","registered_at":"2026-06-04T08:52:05Z","spotify_id":"0THrUkGYn5oEXbRVp6yTnz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d9ea9174c1b656bd91adf626329c3cec15bc4670ddbe5af82980ec12a7e9bb. 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/0THrUkGYn5oEXbRVp6yTnz.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/0THrUkGYn5oEXbRVp6yTnz.