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 0x6895ed971e9a87a6369ed49be3a76bdcb4609425875df08245a09cb2b8d76c4a. 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/1533b6a9-5aa4-4b7b-91a6-5993ff9f84ef.json and https://artists.proofprofile.net/proofs/artist/1533b6a9-5aa4-4b7b-91a6-5993ff9f84ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x50f3d92494d12954855b6b17f36baa6d7b447f0b6d30d8ebc0b7986ed6cddc9e","isrc":"ES5021000259","name":"Fan de Ti - Edit Version","registered_at":"2026-06-29T05:09:23Z","spotify_id":"5yImWXxZ0Ll2ELOpEOKG4L","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 0x50f3d92494d12954855b6b17f36baa6d7b447f0b6d30d8ebc0b7986ed6cddc9e. 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/5yImWXxZ0Ll2ELOpEOKG4L.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/5yImWXxZ0Ll2ELOpEOKG4L.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb260fca4596b275629e80732ef0002b78747785a788587fec253d78685318c88. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5swTIMlNyWLOBNIbIsRoSN.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/5swTIMlNyWLOBNIbIsRoSN.
Los amantes (feat. Iván Ferreiro) [Acústico]
Los amantes (feat. Iván Ferreiro) - Acústico
Todos mis males (feat. Dani Martín) - Acústico
Contra las cuerdas (feat. Leiva) - Acústico
Todos mis males - En directo, Circo Price de Madrid, 8 de octubre de 2016
La tormenta - En directo, Circo Price de Madrid, 8 de octubre de 2016
Amasijo de huesos - Actuación acústica, Teatros Luchana, Madrid, 26 de septiembre de 2018
Si me ves aparecer (Canción original de la película Reyes contra Santa)
Si me ves aparecer - Canción original de la película Reyes contra Santa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb260fca4596b275629e80732ef0002b78747785a788587fec253d78685318c88. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/30CoICYqO1neeqB4gYBuBi.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/30CoICYqO1neeqB4gYBuBi.
Plan fatal (feat. Juancho Sidecars, Sidecars)
{"copyright_id":"0xfdb00292e20bbf27e78d32d9c1d366079b2eebabd2f48b33b3acd2649dbfaf6f","isrc":"ES5152201532","name":"Plan fatal (feat. Juancho Sidecars, Sidecars)","registered_at":"2026-06-04T07:54:20Z","spotify_id":"1rvIc6gmb6PBaEf2cET16n","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb00292e20bbf27e78d32d9c1d366079b2eebabd2f48b33b3acd2649dbfaf6f. 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/1rvIc6gmb6PBaEf2cET16n.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/1rvIc6gmb6PBaEf2cET16n.
{"copyright_id":"0xfdb00292e20bbf27e78d32d9c1d366079b2eebabd2f48b33b3acd2649dbfaf6f","isrc":"ES5152201532","name":"Plan fatal (feat. Juancho Sidecars, Sidecars)","registered_at":"2026-06-04T07:54:20Z","spotify_id":"3WJYbZVCqG5EygdjCiBLmh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb00292e20bbf27e78d32d9c1d366079b2eebabd2f48b33b3acd2649dbfaf6f. 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/3WJYbZVCqG5EygdjCiBLmh.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/3WJYbZVCqG5EygdjCiBLmh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb260fca4596b275629e80732ef0002b78747785a788587fec253d78685318c88. 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/6EBsAXgBBrz95BpxTvSmfL.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/6EBsAXgBBrz95BpxTvSmfL.
{"copyright_id":"0xf8000bbe2ac07fc814daa41efe4d043a3813459112a00d5c6b635e38ba8d0de6","isrc":"ES5151600091","name":"Los amantes (feat. Iván Ferreiro) - Acústico","registered_at":"2026-06-26T17:07:33Z","spotify_id":"7u0Q5eb4kcpdpzUczRvyd7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8000bbe2ac07fc814daa41efe4d043a3813459112a00d5c6b635e38ba8d0de6. 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/7u0Q5eb4kcpdpzUczRvyd7.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/7u0Q5eb4kcpdpzUczRvyd7.
Éxitos del Pop en Español de los Años 2000
15 años entre canciones para el tiempo y la distancia (2005-2020)
{"copyright_id":"0xf8000bbe2ac07fc814daa41efe4d043a3813459112a00d5c6b635e38ba8d0de6","isrc":"ES5151600091","name":"Los amantes (feat. Iván Ferreiro) - Acústico","registered_at":"2026-06-26T17:07:33Z","spotify_id":"5EYnHIHlV3xBYKdqL8hYjy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8000bbe2ac07fc814daa41efe4d043a3813459112a00d5c6b635e38ba8d0de6. 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/5EYnHIHlV3xBYKdqL8hYjy.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/5EYnHIHlV3xBYKdqL8hYjy.
De bar en bar: Lo mejor del Pop-Rock Español
Chavales de instituto (Acústico) - Acoustic Version
{"copyright_id":"0x3b974a1f6c3ffa29f4c2d8b3f81892ef09e9fc543b066d9c54195af172b5743c","isrc":"ES61S1600004","name":"A la Orilla de Mi Piel","registered_at":"2026-06-26T20:41:54Z","spotify_id":"3JnSdTvekHeLg5rC0lfOz3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b974a1f6c3ffa29f4c2d8b3f81892ef09e9fc543b066d9c54195af172b5743c. 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/3JnSdTvekHeLg5rC0lfOz3.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/3JnSdTvekHeLg5rC0lfOz3.
{"copyright_id":"0x9bd90dadc5a8c42867d212041e72d86a623f6fca1a5d1b69feeb54d909193ffa","isrc":"QM6MZ2489062","name":"Dragón - Live","registered_at":"2026-06-07T13:48:37Z","spotify_id":"3NUZ1yqOi8KRVgdYhDshRa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd90dadc5a8c42867d212041e72d86a623f6fca1a5d1b69feeb54d909193ffa. 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/3NUZ1yqOi8KRVgdYhDshRa.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/3NUZ1yqOi8KRVgdYhDshRa.