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 0x494f5c4bf5288bd45addb2336dfd02a61dc06bbe8c8bf149d955cd1bde019f6e. 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/97892232-4697-40e8-9638-fb62dad72d7c.json and https://artists.proofprofile.net/proofs/artist/97892232-4697-40e8-9638-fb62dad72d7c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Nada Tienes / Vivencias / Dile / Quinceañera / La Revancha / La Ladrona / Tu Carcel / Pìdeme la Luna
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 0x02550d50062c63010f869b0fd8ec59f53c9267125cd82a263aa304204c5cbd40. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJW2308362 — a six-check JSON result.
Lamento de la Selva / Danza de los Mirlos / La Danza del Petrolero / Bonita y Mentirosa / El Curandero / Tirense Con la Escoba / Gaitas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846fa04b4ff67d2febcc8593dc250e00ba0dbce8cdbba5c55a0a596dce062305. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJW2308363 — a six-check JSON result.
De Aky Pa Ya / Tu Partida / El Borrachito / Haciendo el Amor / Mil Mentiras / Entrégate / Cariño / Ay Corazón / Te Amaré / El Deseo del Placer
Herida / No Hables / Devuélveme el Corazón / Frente a Frente / El Ayer / Cosas del Amor / Ahora Estoy Solo
Lo Que Tenias Conmigo / Amor de Su Cama / Peligro de Extinción / Mi Vida Eres Tu / Me Hubieras Dicho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35df819bef202eddb29d60866efffcc49dddcceb02b51661037c969fa0d502f1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2374608 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4581d9a830032b550ea099ef6637fc905f61b9925b16bf6430e6f7d4f1a243e9. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2374609 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3109ccf6178452e37c9f95b091cc1b09efc8f9d63167c231d51ec9a90eb60084. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2374610 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfeedabd9b9314a463d8a7fccb502494418db02457e7592a6be892fdfa988b49. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2374612 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77343bbff9918873121a86db622b87c7195faefa7702fc21144567a0ee786d73. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2374614 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffc54c5d60a9821bd82c347fe938ae4431bef5775c3ec54e48d70e42948bbf7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2374615 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc0facffc14ffc377ead4957afeeb87a85a4697fabc3baa240316bae9089e0b. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2374616 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9be8ffeb4708467bbf3ffdabb602181fd7f942d9066d06695e4122c741ab67. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2374617 — a six-check JSON result.
Un Hombre Normal / Otro Ocupa Mi Lugar / Quizas Si Quizas No / Pero Tu No Estas / Te He Prometido / Con el Corazon en la Mano
Amor Superficial / Amor Amor / No Voy a Llorar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fa3dab11c014f40a0234cc30461d774456d8410f95605c63dd5bb7cdd9d023. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2337901 — a six-check JSON result.
Agonia / Olvidame Si Puedes / Un Buen Perdedor / Piensa en Mi / Para Que Sufrir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52954f688be364242115c9a1a83bbcc307a454e4eaa873c8b26e2d437c55b74. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2372090 — a six-check JSON result.
Cuidar Nuestro Amor / Bailar Pegados / Nada Hara Cambiar Mi Amor por Ti / Nunca Te Olvido / Hotel California
Tantas Chiquillas / Dame Platita / Siempre Te Amare / Jamas Podre Olvidarte
Loco Corazón / Piel Morena / Duele / Estrechándome / Dime Mi Niña / Enfermera / El Aventurero
Jamás / Voy a Acostumbrarme / Decime Corazón / Porque Sera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aed88c55a96bc4c42b61be4c930152af3d58fd52af995f4a1fca343f68a5f25. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2415581 — a six-check JSON result.
Díganle / Te Quise Olvidar / El No Va a Venir / Hasta el Fin del Mundo / Callejero Favorito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63dc02b698dc81d9461ed55305d0a53012b752b59441fc235dedfdf1baa24fb1. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2415582 — a six-check JSON result.
Con la Misma Moneda / No Se Toca / Mienteme / Esa Te Dejo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3881cd5df2985d681daf0264b2fb3c8100c5087e1aa6bbc650d75e0edbe67d. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2415583 — a six-check JSON result.
Quítame / Disimula / Traicionero Corazón / Corazón Mentiroso / Lo Amo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21badbdfaba5df1b732416b8d683202cf188614b560c38c37f205731aa772966. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2415584 — a six-check JSON result.
No Me Dejo De Querer / Mojada Por Dentro / La Piel Bien Caliente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4dfa52cddffed6780080efe43d6de6934ac8c85c8ccfe856114af4adce95d7. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2419464 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dc6a3c9a2bcb08d7c28262fe56916f63e025dc53010990f8a9bcbff8b56604. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLS2506303 — a six-check JSON result.
El Perro El Gato Y Yo / Frente a Frente / Me Estoy Muriendo / Y Yo La Amo
Especial La Banda De Carlitos (Un Poco De Ruido)
Vasos de Lagrimas / Muriendo de Frio / Sin Ti / Viene Del Alma / Sera Mejor / Me Duele Mas a Mi Que a Ti / Te Sigo Amando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d391f41707842bf0aeea4ca423b47f713e0df0dfe9ed183e8768e5a8e0b2905. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJZ2571692 — a six-check JSON result.