1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x0eb0da2e132e5ed82d863aaf44a3cfd45106c03c5f2be68c387a4dbb76cdee30. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10d8b521-002b-4a55-b542-7b266c5ab31d.json and https://artists.proofprofile.net/proofs/artist/10d8b521-002b-4a55-b542-7b266c5ab31d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Los Gavilanes: "Salida de Juan" - Remastered
La Pícara Molinera: "Romanza" - Remastered
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 → block OTSBitcoinBlock must exist at that height 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 0x8e0f81b41de8e28a4c34f3932ea9bcdef75f28ccbffb944481b994507d684276. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES5271401513.
La Alegría de la Huerta: "Las beatas de la Fuensantica" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f717630c7b1e773e8a653aa70207b487240474650c93f0308a9a39374bd53a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES5271401502.
Los Gavilanes: "Siempre amigos" - Remastered
Doña Francisquita: "Dúo de Fernando y Aurora la Beltrana" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda85ffb48bc3d2d021e93b98927290b5408097d3ea353bd7d93c61dc41592f09. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES5271401503.
La Gran Vía: "Calles y plazas de Madrid" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc4ca5853053f494ebfbeee0bc63e6185ca6256035e6260eafb5c6fe3ddc631. 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/ES5271401515.
La Canción del Olvido: "Soldado de Nápoles" - Remastered
El Niño Judío: "Canción española" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca442d5fa46ab924d11b6bc6af4dc9b6919b14cdcfd87984b1a370342270a5f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES5271401516.
La Tempranica: "La Tarántula" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4a8b8b2a4d772b41a794e2ded64bde421062f9ebf83400f9882688c18f8933. 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/ES5271401517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ae3fecd03d2da31004e64bec0705f3f8520d17fd06338c97e011aef8cadeda. 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/ES5271401506.
Doña Francisquita: "Fandango" - Remastered
La Verbena de la Paloma: "Dúo de Julián y la Sra. Rita" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafee3658ff6df097c18ddb081ef1700c38f0f5fb0db27b235913e559af49522. 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/ES5271401507.
El Barberillo de Lavapies: "Seguidilla" - Remastered
Los Claveles: "Romanza de Rosa" - Remastered
Doña Francisquita: "Siempre es el amor" - Remastered
Luisa Fernanda: "Romanza de Vidal" - Remastered
La Canción del Olvido: "Ronda del Piruí" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a335386183047ce296d18ac5b2689a1848c45060aa92cb00a5e764f779631eb. 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/ES5271401511.
El Huesped del Sevillano: "Canción de las Feas y los Lindos" - Remastered
La Leyenda del Beso: "Intermedio" - Remastered
La Zarzuela "17 Grandes Momentos Del Teatro Lirico Español"
La Canción Del Olvido - "Relato De Leonello"
La Revoltosa - "Dúo De Felipe Y Mari Pepa"
El Huesped Del Sevillano - " Romanza De Juan Luis"
Luisa Fernanda - " En Mi Tierra Extremeña" - Dúo de Luisa Fernanda Y Vidal
El Huesped Del Sevillano - " Canto A La Espada"
Luisa Fernanda - "Escena Y Mazurca De Las Sombrillas"
La Canción Del Olvido - " Marinela...Marinela"
Gigantes Y Cabezudos - "Coro De Repatriados"
Las Golondrinas - "Fuego De Paja En El Viento..."
Gigantes Y Cabezudos - "Anda, Ve y Díle Al Alcalde"
Federico Moreno Torroba/Carlos Del Monte/Rosa Sarmiento/Jesús Aguirre/Elena Guadaño/Ramón Alonso/Isabel Rivas
Marina, Act I: Preludio - "Ya la Estrella precursora" - "Brilla el Mar Engalanado" (Marina, Coro)
Marina, Act II: Final (Marina, Alberto, Pascual, Coro, Jorge, Roque)
Marina, Act I: "Pensar en el" - "Felices Días" (Marina, Alberto, Pascual)
Marina, Act I: "Yo Tosco y Rudo Trabajador" - "Jorge Dio Fondo Correrle a Ver" (Pascual, Marina, Coro)
Marina, Act III: "A Beber, a Beber" (Coro, Jorge, Roque)
Marina, Act I: "Costas las de Levante" (Jorge, Pascual, Coro)
Marina, Act III: "Ya Estamos a Bordo" (Roque, Jorge, Marina)
Marina, Act I: "Al Ver en la Inmensa Llanura del Mar" (Jorge, Coro, Marina)
Marina, Act III: "No Sabes Tu" (Roque, Jorge, Marina)
Marina, Act I: "Sea el Bienvenido, el Bravo Capitán" (Coro, Jorge, Mujeres, Roque, Pascual, Marina)
Marina, Act III: "No Puede Ser... En las Alas del Deseo" (Roque, Jorge, Marina, Pascual, Coro)
Marina, Act I: "Feliz Morada" (Jorge, Roque, Coro)
Marina, Act III: "La Luz Abrasadora... Seguidillas" (Roque, Coro, Pascual, Marinero, Jorge, Marina)
Marina, Act II: Barcarola. "Marinero, Marinero" (Coro, Pascual)
Marina, Act III: "Marina, Yo Parto Muy Lejos de Aqui" (Jorge, Marina)
Marina, Act II: "La Novia No Parece" (Coro, Marina, Pascual)
Marina, Act III: Rondo Final (Roque, Coro, Jorge, Marina)
Gran Orquest Sinfónica del Teatro Calderón de Madrid
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6188df9be0a0910216cf9d7fb8d848542f41426ff7f6df7d2ba488476a0cf60f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ES5279901203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fb047cf7170a61bc1f32843cc45d59797fdee8d9aced2096f2b01eb22a5c20. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/ES5279901204.
Monte Carmelo: "Profecías de Mamá Dolores"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64252a6c91a4c94d21c2f5a04491ef13c4e5713c52fca373aaae5b2b0366ab1. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/ES5279901205.
Monte Carmelo: "Dúo de Esperanza y Juan María"
Gran Orquesta Sinfónica del Teatro Calderón de Madrid
Monte Carmelo: "Dúo de Manrique y Juan María"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c783e3a41593b5d91823eb6fa1b5528e94c0d450838c64b722a490de441ef24. 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/ES5279901209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796db736f510242c3726f1dd531b5d047f4d9d9bf75d9868afcdc59a48b03bd8. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/ES5279701301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29d28b7c5377cbaa3ba75509bd8bbf970b9faa26280eed6a636a1219a7cd0cc. 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/ES5279701302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d53a493b9a9f74d5bce729a27935a1ccc61bb2db941c59d44e1b263806cfac. 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/ES5279701308.
El Cantar del Organillo: "Canción de José"
El Cantar del Organillo: "Romanza de Carmela"
El Cantar del Organillo: "En el silencio del barrio"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd598196d017e6d4f0984ef61ae1fe6da61060ae798fa338b561a90d5a521d521. 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/ES5279701313.
El Cantar del Organillo: "Duo de Carmela y José"
El Cantar del Organillo: "Se rifa un beso"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0961ead0cd08533f976c914d040bea2bbfdbdfb27860d83cbfcb81277f878d57. 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/ES5279701315.
El Cantar del Organillo: "Cógete bien de mi brazo"
El Cantar del Organillo: "Terceto del abanico"
El Cantar del Organillo: "Mazurca del abanico"
Maravilla/La Condesa de la Aguja y el Dedal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe281a9e6eb36ce2ec5ee29f110013ec3b1f4f7a83711fe0c3517df4e988c8f55. 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/ES5279800904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613d0b6b17f26ee8db5556de92a7096b39b8acb7cf401e59726b8dc7099c38e8. 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/ES5279800905.
La Condesa de la Aguja y el Dedal: "La condesa de siete picos"
La Condesa de la Aguja y el Dedal: "Cuarteto cómico"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0ceb1482cd9a6c03d38b33a86f34f39568016bbfde432bcbd498e297cb5d06. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES5279800907.
La Condesa de la Aguja y el Dedal: "Intermedio"
La Condesa de la Aguja y el Dedal: "Couplés de Leocadia"
La Condesa de la Aguja y el Dedal: "Habanera"
La Condesa de la Aguja y el Dedal: "Romanza de Gonzalo"
La Condesa de la Aguja y el Dedal: "Fin del cuadro 2º del acto 2º"
La Duquesa de Bal Tabarin (Canción de Frou-Frou)
La Viuda Alegre (Al Restaurante Maxim's)
El Conde de Luxemburgo (Es la Felicidad)
El Conde de Luxemburgo (Por Favor, por Favor)
El Conde de Luxemburgo (Fiesta del Carnaval)
La Duquesa de Bal Tabarin (Salida de Octavio)
Terry's Theme from "Limelight" (Eternally)
Sinfonía Nº3 En FA Mayor, Op. 90: Allegro Con Brio
Cascanueces - Suite - Op.71, I: Obertura Miniatura
Sinfonía Nº5 En Si Bemol Mayor: Primer Moviento
Concerto Pour Flûte et Orchestre I: Allegro
Orchestre de l'Association des Concerts Lamoureux
Ernesto Lecuona: Su Música y Sus Intérpretes
La Zarzuela "50 Grandes Momentos Del Teatro Lirico Español"
Sinfonía Nº3 En FA Mayor, Op. 90: Andante
Gershwin Medley: Embraceable You / Swanee / The Man I Love / Liza / I Got Rhythm
Sinfonía Nº5 En Si Bemol Mayor: Tercer Moviento
Concerto Pour Flûte et Orchestre à Cordes, III: Molto Vivace
Sinfonía Nº8 Een Si Menor "Inconclusa" Primer Moviento
Cascanueces - Suite - Op.71, VIII: Vals de las Flores
Blanquita Suárez / Faustina Breteño / Lepe / Coro
Teresita Silva / Antonio Martelo / Luis Sagi Vela
El huésped del Sevillano (Zarzuela en dos actos)
El huésped del Sevillano, Acto I: Preludio - Canto a la espada toledana - Castellana toledana - Moza la toledana - Canción de las feas y los lindos
El huésped del Sevillano, Acto II: Las Lagarteranas - Si tú fueras pastora - Las penas me hacen llorar - Baile de la Chacona - Mujer de los negros ojos