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 0x48f3d84c9d74d583fbcc45226e54978c34547049e823fa52410f171523c42899. 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/2b19d6d6-038e-470a-956f-5574851d8fcd.json and https://artists.proofprofile.net/proofs/artist/2b19d6d6-038e-470a-956f-5574851d8fcd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dale a la Caña / De Rociera / Los Pinares de Marlo / Triana Mía
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 0xa0cc2d8db1ecc642219469c1f27a2c65b9451b19238dc267238437c7a91b4bd9. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/ES5350702616.
Manuel el Carretero / Hermandad de Triana / El Rocío que Yo Quiero / Rocío, Rocío, Rocío
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f1260b6fd2661441a994a07b0abf11d33200dd25b88fd38a2c980935de2bfa. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/ES5350702617.
Con el Tiempo Ten Cuidao / Con el Tiempo Ten Cuidao / La Peregrina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec0c80161fe05ece753556b3e8fed5d87f2765fcc02b2f6a1eeb13c586162cb. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/ES5350702618.
Mi Guitarra / La Carreta / Salió de San Jacinto / Qué Tendrá Triana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f7393e5d8018c360b79fa305d92b0bf181310ad55e720337eb3e114fe78609. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ES5350702621.
Yo No Sé Rezar / Y No Soy "Na" / Abridme Paso / Mi Fe Se Llama Rocío
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b0abb677bb0b1397a4918e0a075ec9616bb54fdcf265b29e1b161e5371ac62. 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/ES5350702622.
El Rosario / Mis Recuerdos / Sol de Mi Amanecer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d6ef08619c93e9294c9f967c8982144e44eaefa989ceca7482fc4d4c3488b6. 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/ES5350702623.
Tamboril / Caravana Rociera / La Muñeca / La Choza del Planeta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe605edec3ad1c2ad5bb89300d55c06e01c8494e9653f0b3d3c615a874236455b. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/ES5350702624.
Mi Primer Rocío / El Compadre / El Niño Sueña
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efef8ad7411d422e7043a134468e1d6ac358c93858bd8f662478469c182a62c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ES5350702628.
Padre No Me Hables Así / Atardecer en la Raya / Que Estaba Haciendo el Camino / Pensamientos que Vuelan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac79e23a93c0af7e8c2ec9867ff2efdb6bce11424fe08c2ebdca0b7a82d5da5. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/ES5350702629.
Todo un Año Soñando / Debajo del Carro / Promesa Rota a Manuel / Parecía un Sueño
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bb623186b3f4872b2d9cae9889ee14ad61f7794550b7dcbd1e0b1235e00d77. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/ES5350702631.
Llevo Romero / La Medalla / Amigo Rociero / La Espadaña del Rocío
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb422cce6edd59ce8894a682f0b7842bb60663c9463e17485c386424522ed5eee. 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/ES5350702632.
La Margarita / Tu Camino y Mi Camino / Flor de las Flores / Una Vieja Leyenda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bff091a5bc8af61e0307fb08422d2499f56920983845ea33305b2d3ac72c92. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES5351604429.
Dibujando Marisma / Aparéjame el Caballo / Por los Caminos de Siempre / Rociero Hasta Que Muera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316016735206275deabd410758371c9e9d5d4704b90347c1c8100c914f32e941. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ES5351604430.
Se Quedó Dormido / Que No Se Pierda / Los Romeros / El Hizo el Camino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7d56f2fd36cf25c683a92069de55357f49a68676702cb07572ad8e08ac1184. 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/ES5351604431.
Triana Va por la Raya / He Vuelto al Rocío / Almonte a Mi Me Ha Enseñao
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e359fb0087325c621dd973bce3b6cd408c91b912c5c68820a152164c98551fb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ES5351604432.
Qué Misterio Llevará / Ya Está Entrando Triana / Que No Se Puede Contar / Cuando Sale la Señora
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2d1595c01fa84992132112deb895ca4c7b022c45f60b306f41391a6ab00959. 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/ES5351604433.
Triana Pasa por Gato / Me Voy al Rocío / Quien Dice Gines / Levanta el Campo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe680d2583632bc77553e4daf7720c16492eafb432a73954c767973490a80bd00. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/ES5351604434.
Tesoro de un Peregrino / Una Nueva Peregrina / Una Candela / A Ella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689b01c99eede7b4b836b22fa306c095d15da87d89fb32eb11b44f8be26c9c24. 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/ES5351604435.
La Abuela / Me Acuerdo de una Medalla / Dale Paso Carretero / Cuando Sale la Señora
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d6360a091ffe00f69131c585219e0bbf0f1fb8b484fa006359ba4508cc09d1. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ES5351604436.
Cantando a la Alegría del Rocío / El Boyero y las Romeras / Amistad Rociera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeec37a98b3781c06dc41db7d141e834430e071636d64c5e978cc84354d5e153. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES5351604437.
Borrachera de Luz / Mi Medalla Rociera / Madre de los Rocieros / Bougambilla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338180c3ef147e697b4935720e687c5ddbe64447d102343aed0c6698ee611a74. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/ES5351604438.
Camino de Hermandad / Por la Mañana / Mis Cosas Viejas / No Puede Ser Rociero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5784234f5d9f07bb11e13c828432bde4d3685b9995dd6d8a0ac0f0d9e2f573. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ES5351604440.
Mi Primer Rocío / Ay Mare / Era Mi Primer Rocío / Me Gusta Cantarle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c204e46adcb7c9157fe39e27b3750618a11f4b4958e2eca79dcccd792c8b126. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES5351604441.
Mírame Rocío / Coplillas del Camino / Dicen Que el Camino Es Malo / Ole Mi Hermandad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee13ccd2b73c70f085e7e3608899270484904d1dc391e589e3aa24e995ebb5c4. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ES5351604443.
Cada Vez Que Te Miro, Rocío / Enamorao de Ti, Rocío / Almonteño Déjame / Pastora de las Marismas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5df1d6c9f1e79dff2d677dcf26e2447295e07967f74a67b92d935f5987055d. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:28:12Z), 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/ES5351604445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d01827a1e50c1fbe52c01cc3b1dc37a2891fce8ec1636a4c324fa5e750e16a0. 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/USA561249610.
Sevillanas 8: Tesoro de un Peregrino / Una Nueva Peregrina / Una Candela / A Ella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c361d33f160de487b987af3ad19e85fd4ec1a30254952f537a9493559d798b9. 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/ES5351202952.
La Abuela / Me Acuerdo de una Medalla / Dale Paso Carretero / Se Asoma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94a647ca63d016c9b5765687cecc473869335b4c421bce28969a00148f65d8c. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/ES5351202953.
Sevillanas 10: Cantando a la Alegría del Rocío / El Boyero Que Venga / Tengo un Amigo del Alma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3421a505c3fb59a3f721a738e0a24e1a56fe2af281817362277b2fe9f0b074. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T03:45:30Z), 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/ES5351202954.
Camino en Hermandad / Por la Mañana / Mis Cosas Viejas / No Puede Ser Rociero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf612e808cc2fc95187e934045602668cdbff633ed5fa9583e01aa8144c8b720f. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/ES5351202957.