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 0xaf3eef8f981e77900cbc44e615e5a6250ed24fd029ef181bd29e999e63798bd5. 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/b8f640e7-e035-45a2-8c41-bc68aea2ece4.json and https://artists.proofprofile.net/proofs/artist/b8f640e7-e035-45a2-8c41-bc68aea2ece4.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Desde La Fábrica de Los Éxitos Todos a Zapatear, Vol. 1
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 0x42b470286c5d40c6232eb0d68c9bf0a081b73ef056790655a70a0b4fc193e01d. 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/QMFMF2117482 — a six-check JSON result.
Mix el Casorio: El Casorio / El Curiquingue / En Mi Escritorio / Mi Vida Es un Martirio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a45f5772eceb8f6e4634976dcfeb2069fe29ba5915e3e0167da9f9f6018a4b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QMFMF2117484 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee40a8f79af29480c38d390d731b99782460358fa4a8e9168a6b44dcb6185b5. 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/QMFMF2117486 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930267c81fde4e081aed77b477dde547cd2349eec39dc6a9b731687fc3cda1bd. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2117498 — a six-check JSON result.
Desde la Fábrica de los Éxitos Todos a Zapatear, Vol. 1
Desde la Fábrica de los Éxitos Todos a Zapatear, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138f07fe82c5320082fbe7fb5d9a355e8b4da5dda38ddb20432e9003c0924b97. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2117530 — a six-check JSON result.
Mix Zapateadito: Tusuchendo el Anaco / Rasca Bonito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b5a36639bb4e000d83714f46904fc75e3e27e053ad4aad72f283afeb5c35da. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QMFMF2117577 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c5cb26ea1e49db92cb203f3ba51c4d5b68ce43b04d97d5d4f45ff84aa9efb6. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QMFMF2117585 — a six-check JSON result.
Javier García "El Requi" Y Sus Estrellas
Mix Norteño: Juraste Quererme / Cuando Vengo Nomás Vengo / Pilche de Chicha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5963e1efa3f6ac35417f260c34cd10bd41e3a40a5afe7d0a38284d90fc43eff7. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QM4TW2240743 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee26089cabab7ad72f0a7bebf7bea42e654bd0715a555c9f1460f357bd11613. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2289731 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0dda0218e51a2da2419f9fd9d1e3462a47f42e61695758609ebc076a378c75. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2289733 — a six-check JSON result.
Mix Tropicalísimo: Pagarás (El Humo del Cigarrillo) / Con Paso Fino / La Engañadora
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7097f5ad4516414aca403059bc6c55db62ba2baee210145e38b7bcbb2a3a90ff. Chain 2 (Bitcoin): anchored in block 956777 (2026-07-05T11:01:08Z), 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/QMDA62230253 — a six-check JSON result.
Mix JJ: No Me Toquen Ese Vals / Te Esperaré / Alma Mía
Mix Cortavenas: Poquito a Poco Te Olvidaré / Nos Están Haciendo Daño / Hola Cómo Estás / Adiós Amor / Mala Fe / Vagabundo Soy / Amor Manchado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ed4d9711b55598307f1556fde8dce415bd813c68bc6e413cc116b069e970c3. 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/QMFME2263241 — a six-check JSON result.
Mix Bailadito: La Magolita / Susana / Chofercito (En Vivo)
Mix Nacionalísimo: Pobre Corazón / Cantando Como Yo Canto / Esperanza / Cariñito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5065d1501527ae79ab2a2fe4a09d0226f551f6c9c867ed5aeb2af24c84d7044f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22330643 — a six-check JSON result.
Mix Cumbia Sureña: Tu Amor Fue una Mentira / Lágrimas de Hombre / Qué Puedo Hacer / Mil Amores / Así Es el Amor / Basta Ya Mi Amor
Mix Hechicero: Pecadora / El Arbolito / Ojitos Hechiceros
Feliz Navidad: Blanca Navidad / No Sé Niño Hermoso / Ya Viene el Niñito / Bienvenido Seas
Mix Cavando Hondo: Cavando Hondo / Amor Amor / Negrito Lindo / Siempre Te Amaré
Mix Sabrosón: Sorbito de Champagne / Lloró Mi Corazón / Nuestro Anillito / A Tiempo / Tienes Que Regresar / La Cumbia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dac834098fa7b9614bdb77d46ec1113454167dd84e278d4e29843cf1199d861. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P42478269 — a six-check JSON result.
Mix Canta Claro: Nos Enamoramos / Me Mata El Dolor / Estoy Pensando en Ti / Mi Compañera
Mix Aguardientoso: Tres Motivos / Bohemio y Bacan / Penas
Mix Pasillos Sentimentales: Devuelveme La Vida / Tendras Que Recordarme / No Me Quisiste
Mix Pasillos Incomprension: Incomprension / Amores de Un Dia / Resignacion / Idolatria
Mix Pasillos 17 Años: 17 Años / Te Quiero, Te Quiero / Eso Es Cariño
Mix Rompefiestas: Que Mala Suerte / Angustia
Mix Picarón: El Canchis Canchis / El Rockanrolero / Mi Mosita / El Dominguero
Mix Saltadito: Rosas y Espinas / Plato de Cuy / Amor de Pobre