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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4c648be36369e054c7a7f442355b80ad09d141ca1729e870a6c9c6763bfe14. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36b71a33-6db3-40b9-a693-499ca6015a21.json and https://artists.proofprofile.net/proofs/artist/36b71a33-6db3-40b9-a693-499ca6015a21.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tierra de Placeres / Pacho Galán / Boquita Salada / La Butifarra / Parampampam
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614ee049e667e829400b93026bf6ae2a25ab53039c68212ccec0b2a02316c3ca. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/ES19G1000256.
Cumbias Medley: Que Levante la Mano / Ya Soy Libre / Quiéreme / No Lloraré
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46908edf17b33944e2f2f8f6d3b5c4e3a38a7e03497b2eadd6a5d088e27b422c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES19G1000257.
El Pueblo No Se Equivoca / Cántame un Pasodoble Español / Soy un Pobre Presidiario / Viva el Pasodoble / Que Viva España
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd44e4cf91cd79512c7d7749943404b274942c8161f60dc4e2d0cb8c99b7906. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/ES19G1000258.
Enséñame a Cantar / Tus Besos Son para Mí / Bye Bye Fraulein / Las Flechas del Amor / Noa Noa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4df683ebdb6734740be2090b588bb6e0926ad097d55a7fedd81a411085e0586. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/ES19G1000259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ad2ddc55636f4e7988adfc3cb953be4a6a274fe62ca36488aa7eeb514a2d42. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES19G1000260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbdd70ae84ff8d73d99c0c7a64b427ebe8e63eb6e59d0c6598d2ed9d71cdbb0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES19G1000261.
Si la Muerte Me la Dieras Tú / Viva Chihuahua / La Tequilera / La Viuda Alegre / Yo Vendo Unos Ojos Negros / Cielito Lindo / Mexico Lindo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9e221c350297dd79d69f4ee1aba479913a4d64bbfa514f8a3851f41701252a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES19G1000262.
Eu Gosto de Mamar Nos Peitos de a Cabritinha / O Xeito da Muller / La Puntita
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8784251119c629034f881e9f6e22ecbd5d3bf02570df7815d65f5a31264f6fc3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES19G1000263.
Yo No Me Doy por Vencido / Que Te Quería / Colgado en Tus Manos - Disco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91b069bfe93a72e0c9a120a9c49017e99d66e09fc7bb5104f8dfceeb23b95f6. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ES19G1000264.
Rapaces e Rapazas - Los Chicos Con las Chicas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa01b162282444e91e3f2079517d5e31941130d5ddef18698b3bb32d6dc67c2f. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/ES19G1000265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6042a75843879cf71d6755ef6de3d6929fc87978019a0508a0808690b8ba51d9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES19G1000266.
Merengues para Bailar Con Orquestas de Galicia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2643918777dd9e8d5a441d796658936e4e157418740598a473595418fcaa4bc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES19G0700229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6012414408fc12ddb6ff80ffcfe68eaa0867dafd6fb40548844b3e2095178c0f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ES19G0900307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8dc61697db7eb7939da4147bbbbdaa0df871cb8b5527c70b38766a3e62d5c6f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES19G0700227.
Cumbias para Bailar Con Orquestas de Galicia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c594840dc68ac6ed6dd14c75d93d583d5c3096be9106a76e667347c8becf3d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES03S1000127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a76edadf3bf47f1eeef3e4acad2661d061767c56f091c21478a0ce55d99f1b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES19G1000314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedeb1e6aad59594b20d2237e90ffa11fc2ba13744ba429956b2ba9995c2252c7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES19G1100348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2643b3bde62e6f9ba5c352de3d090204a6779d2c3f3879c15e5f7deb92cdcca6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES19G1000213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9f47078812c70ac97b3c6f9c8ba1ced5ad6f31dbf604735a22f545476a3ef9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES03S1000128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bb70f2fd41966bbe9f59f055135824e211c8b71d32ce7d4fe4c7f7a68335e1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES19G1100341.
La Pollera Colorá / Tu Boquita / La Butifarra / Mi Cali / Qué Tontería
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ea86e5f9b5409895e1b2dc26cf8d45c58ca0d041eeb28a698084df26579ee4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES19G0700220.
Música para Bailar en Carnaval (Music For Dancing In Carnival)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb15c81b4a63d48161af5a2dacf96bc64fb359b5e3f3d317abe6b9fc081f7e6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ES19G0700461.
Amparito / Mi Dulce de Coco / Yolanda la Reina de la Parranda / Yo Quiero Ser Como Ariel / Caminito de Guarenas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851ce0761949a43bf739ab545fae7dd8235da1e005363b504376f819ba031b0f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES19G1000397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e6dc1d5c67d2b5508c9d43ba1d3f57082f165e2362a1d4c1cdb53ae419b38f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES19G0800206.
El Tren de Seis / Yo Me Llamo Cumbia / La Piragua / Pastorcillo / Espinita / Palmireña Señorial
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25064505173210c9c2a36d0b86c07501f5405f7ab632ce16f703fb5b5b2b782e. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/ES19G1000403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762b15ec927123e4fab1c0f4c12b7f0a6b50812c12b99ac6348fc84bad18f00c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ES19G1000487.
Ron Con Cocacola / Besito de Coco / Cachita
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e9c7da427a73fbdfd500fb27ab09d8eb9ff3229fa30a3ebb01ce90431a4b36. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ES19G1200423.
Fiestas de Pueblo Con Orquestas de Galicia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ff63bc3b002268d3ff062ffcb378c131e54a44e6e3cef3932e170502f1a983. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES03S1300156.
Canciones Mexicanas Con Orquestas de Galicia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4afef49c19460f11782c1b579d15c4e71335bdde5eeefa95bfdde348ee1c60. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES19G1301785.