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 0x5d4517e267cc5531358ab254946d7b0006f9dd7e27156420a6959a4f8838dc78. 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/5ac56bac-9934-42b1-86fc-99bd0856f7d6.json and https://artists.proofprofile.net/proofs/artist/5ac56bac-9934-42b1-86fc-99bd0856f7d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x17ab40f90b642e0ec272db4278cd2e647ff3c211cf1f1fc889d2ba615c0920c7. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PEIF21102007.
La Cadenita / Ocho Días / La Cosechita / Fiesta en Corraleja / Atrévete a Mirarme de Frente / Aventurera / La Interesada / Volver Volver / Masculino Femenino / El Gallo Tuerto / Playa Brisa y Mar...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc4cf289fb601b25676d8ed1139a2624c8ffc1df73e7f56cd281118ef745bba. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/PEIF21510002.
La Cañaguatera / La Palma de Coco / Las Pilanderas / Pepe Candela / En el Tren de Seis / La Charamusca / Lamento Náufrago / Garrote y Machete / Dos Mujeres / Morena de 15 Años / La Mala Conciencia ...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19119084a56275fbbe92beb3291d268f3e1d4a237c30a2a56013edc6635d2242. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/PEIF21510003.
El Orangután / El Gavilán / La Mula / El Camaleón / El Burrito / La Vaca Prieta / La Arañita / La Pulguita / El Vampiro /
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda00a2c36052b9d53daeb6161af6fca19afee9432a4a90445b35435c3fae161a. 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/PEIF21616227.
Pájaro Amarillo / La Culebra / La Cucharita / La Colombina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32dac1dd7ae3df5121ea56e41ec9a9e51a439a47f3ffb7f7feef9876f24bfa53. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/PEIF21616228.
Al Caimán / La Mucura / Pájaro Bonito / Adonay / Esta Noche No Me Esperes / Chevere Que Chevere / Mi Cafetal / La Tinajita / La Paila / Suéltala Pa´ Que Se Defienda / Tina / La Banda Borracha ...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f20626750a8c6f8d48836548f7bd9cc0c3cf9549f6c640be8015008592a8b3. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/PEIF21616229.
La Negra Celina / Linda Nena / Por Qué Te Cambiaste el Nombre / Tabaco y Ron / Remolinos / Sal y Agua / Palo Bonito / Río Marañón / Mi Canoita / Cumbia en la Selva / Cumbia del Petrolero ...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6babd4846ffd7eb76cd43b91005bea6831888360fff17e1f0ce1016839bd6e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/PEIF21616230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3782ef31e5cf8630cc9eabcde20846e6bc66e948061bd678d5c10270b09c2b4f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PEIF21616231.
Cumbias Pegaditas Norteñas: Tómalo o Déjalo / Paloma Ajena / Amor Ausente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e83f1ddf2312d9bd85a12f02fd429ba8076ff137a463937710ef8910f17b925. 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/PEIFP2100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed7d13d53695efa36bff136694931da99112b524afc5e81e0eecb0468ee68d4. 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/PEIFP2100213.
Cumbia Sobre el Mar / Cumbia Chiclayana / Cumbia Algarrobera / El Guayabo / Cumbia Cienaguera / Cumbia Loca / Cumbia Bendita / Saguate Cumbia / La Cumbia Chola
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea29f14106567f1a302fdd64a06acae12c1839a75ea174147005529e31143c5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PEIFP2100214.
La Mafafa / El Bailador / Pa Macondo / La Misma Vaina / Se Va la Vida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb560d1d8b25b0a1a96c1f28c6ac4037bc557fad93d627af5feade7f920b200fd. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/PEIFP2100215.
Sorbito de Champagne / Sueño Contigo / Gaviota / Tómalo o Déjalo / Enfermera / La Revancha / Vidita
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc161f0a2a26ca055de4044a48dd4dd56b87a05d44397f8105872a45e7492a85c. 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/PEIFP2100219.
Ay Hombre / Yo No Creo en las Mujeres / El Compadre Lucas / Cumbia de Mi Pueblo / Amor Divino / Ya Se Quemó el Carbón / Los Ejes de Mi Carreta / Saco Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0f1bb0d70969c94161883212872431746fa6d64618bab4b97b47be949b2daf. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/PEIFP2100220.
Cumbias Pegaditas Andinas: Llorando Se Fue / Qué Bien Me Dijo Mi Madre / Los Pobres También Somos Felices / Huayayay / El Solitario / Clase Social / Esos Tus Ojitos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b568f43b79743d6315638170dc6d9e89171caec01bb4222aadc1fd5a16bb55. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/PEIFP2100226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb82a634c006e7c5963658c6eadb5c39de8691026379505d1875d5e3a5533cb. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/PEIFP2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abc768a7191dc9e5096f9360b811a3b783604a05e6a1309be47093088913a2b. 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/PEIFP2200146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd1fbdf9f08e971e24db63970eb13fb3abaa5e27b795576e2e7a6cbe4259835. 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/PEIFP2200147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7c79e13155f6deb996e28c0ae0571cc5d829c079652b5c84a9a4d15b3fdf5f. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/PEIFP2200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145af6a0006d9da214ccd2b6c1b242c2f86fbd0c7d324836ed427045d4366ec1. 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/PEIF21102002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a7dbd0ffd544e5281b327f3e324778d25e00d67e373bd1b5e981d97584e575. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/PEIFP2200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc778d561bfc85226f2fa8f423729ab24b719cbf2ce539b030132660b65fea94c. 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/PEIF21102003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7acaa93b755b040d41ef09b1c637c4e3775142182e92dec3be36cd79305b2f4. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/PEIF12100003.
Tesoros Escondidos: Infopesa Hidden Gems
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052bda26e3d95dc90a976110f9e351a64f286cc4c8a4bd2e3ad7d77da9380b35. 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/PEIF21811013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34644372b139711b90529f889ca747c775cd4910f8746e8c3c72d33549bedaf3. 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/PEIF21811017.