1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x518633a427f47bd1a52d7a1a8764b90d7ac8fd631b6ee204c79c7f06dd4794fd. 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/5e39cdfe-e03c-4576-99df-5b43152bd44a.json and https://artists.proofprofile.net/proofs/artist/5e39cdfe-e03c-4576-99df-5b43152bd44a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
No Te Vayas Todavía. Carnaval de Cádiz 2017 (En Directo)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0934d5e3372c911abae7fdf3c86f7c068e959df6fbbbf4d27b37cc0ec4bc5e05. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA032106501.
Hoy Les Voy a Hablar de Este Hombre - En Directo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4c0eed0fc8efa5d3100d5c0a79517bdd7167bb14c60aeae72251fa1af1506b. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA032106502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c1f78e7c4f3d926d65b1c2ed029fcb9036dd1d0bdbea2b2e8df74b3e777620. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:21:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA032106503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b72992da4cbf393b9d2ce0c103b9da9c349356609e422db4665fff640a0af2. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:07:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA032106504.
Mira, La Gente Nos Dice Mira - En Directo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a2877a6791eb987a2d21f653f08b6fae2e418d0c8b7ffc21bedf5115aa3cf2. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA032106507.
Cuando Uno Llega al Tanatorio - En Directo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759423ef91220cc209cf31d291741815c643c5d80a382fa07be0f3b10af89e0e. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA032106515.
Los Couchers Lowcost. Original de Antonio Álvarez "El Bizcocho". Carnaval 2020 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53518860e89e445da4f6af27f57d2e16d54996612de1760f404eec98aec072bd. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA032107802.
Gente Con Chispa. Carnaval de Cádiz 2022 (En Directo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796a50c5346c8d5b92649096e98a64c242071605b0a93b9a530c0de5b603d6f5. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:40:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES26E2211808.
Los Mi Alma. Carnaval de Cádiz 2023 (En Directo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a440338715afcfdd1c82e3fd16e45cad7410268019cee43b5f670a16e739c7. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:01:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES26E2313402.
Pasodoble Ya Están Llorando - En Directo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a612b56269f7331d0b0798056dcb4fba7018e99923f18abffce7498af85a008. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:16:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES26E2313403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c6f1b7b954e2583c111c113f1e121da42134f6c6e568d463d763fb74dc3913. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES26E2313404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1baf61ce45243d1ec9024852f0d96780932c88f9f4cf9c283af8992dd04555. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES26E2313405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80a4ae229a5374788fd2d7e42b2fd8ba1e626a616630fc2f796799238f5453f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES26E2313406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5e40bb8cf785d66f2e31031737c84e533055dfaefc1eceafdef8f371a2dc8f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES26E2313407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82683ca7c5ca32d791c79836c414a8828fa773b869aea8a19c6e564509d0081f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES26E2313410.
Existen diferencias - Pasodoble Semifinales
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee70d9ead645a368704bd2b7ca3db313db57bf1f5883fbce3bd190b93160e6fb. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2478793.
Hoy esta sinfonía - Pasodoble Semifinales
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9be801eeda21668fa6e6ececff408929a810ba2f2d4f874baeb7441526347f6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2478803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5139c84b307bd454f6fa2bbaea0c03afa10c7b1c0684983b1ea5460696dc58b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2445170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced34b6aad29ecc2a63464abe677f7830e7595294e331b661848668210018db3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2445171.
El famoso ya cartel de la Semana Santa - Cuplé Cuartos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3641b340910be602d249544ca5b15f633aeca1a2ac2652891874ed24fe7ae2c. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2463376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2565b736b77065ae3ccc3ea4dd26ad7934c2cf6584b0877d85249de17a8ec5. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2463383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7522e8dcf91bfef26f589055a5702b34256f91cd91aea6a793a813d76c684d23. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2478804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09065e56104ae4cc66573ea5398bf7cf7b050a1be60b00717bed14352f20fe9a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2478806.
Sienta esta composición (Pasodoble inédito)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac9d2425576a1c20fbeae1921e9ca172c6be6577c4b6f0625032864b859f71b. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2585171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8b612f8bd9fdcde3628336ef94f1404e64cf557e5b56a0e0daf8ed19312be5. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2585172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb779801b2b1e6f34428a98e3b35d6d211e647a9e4f8681db6946cd5665036aed. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2585174.
Los Hermanos damos las gracias (Presentación Semifinales)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3788995a5225be952cb2c0b01ecc1f2057044072f7b76ae982f09ddd67326fc8. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2592013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa680e76c4434224f75ecb51d714ac44040179f4bc1e5da37caa46e7a46515e07. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2592010.
El Papa Francisco / Hay una muchacha (Cuplés)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf369d638f5b1934b4f87405e88349964b7e65fd1cba71fffe987ff4432501719. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:40:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2592011.
Yo tenía pareja / To los influencers (Cuplés)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8c7c7f49719b1542b41d1e9c29c69903ae47697a450bfa70cc9f58f5c9dfa8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2585175.
El futuro es mentira (Pasodoble Primer Ensayo - Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b2bfb4a86cb765cd6042141e7acbb4d94322836f7df6e141add2d800f0ded9. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2585176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b146f8859dd8691a0cd21b0fb9a6f49ef5de705d36f20e1e047a65dcbc86a6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2585178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2add00da634b02ee4d4b1de1cb6c057cd5869293cb1af36fdad9f06ae159560. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22559904.
Los Hermanos del Buen Fin: El Día de la Gran Verdad