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 0xe71718ceefbbb60436965e7801f44fd6627e4884115bc8c43f6aa82f3c828dee. 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/94dae581-cabe-4eef-9366-910e52ac4c3a.json and https://artists.proofprofile.net/proofs/artist/94dae581-cabe-4eef-9366-910e52ac4c3a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
4 Patas, Música Para Dormir Perros y Gatos Sesión 4
4 Patas, Música Calmante Para Perros Vol. 1
Ruidos Para Calmar Perros y Gatos Vol. 1
Música Anti Ansiedad Para Mascotas Vol. 1
4 Patas: Tiempo Para Dormir Mascotas Felices
Perros: Música Con Agua Para El Bienestar
Perros: Música Para Jugar Antes De Dormir
4 Patitas: Relajación y Ejercicio Vol. 2
4 Patas: Música Para Calmar A Tu Perro Ansioso
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 0x49e9bc4d6f945d56ae8e64463849212f8d7bbce761b2063b9b5469c1b728a84b. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/GBRKQ2283939.
Mascotas Relajadas: Calmos Sonidos De Agua y Fuego - 3 Horas
Una Calma Selección De Música De Naturaleza Para Mascotas - 2 Horas
Música Para Mascotas: Reconfotantes Sonidos De Agua Para Relajar Perros y Gatos - 1 Hora
Gatos y Perros: Música Reconfortante De Naturleza Para Mascotas - 2 Horas
Mascotas: Música Reconfortante De Naturaleza Para Relajar Perros y Gatos - 3 Horas
Música Para Perros: Sonidos Crepitantes De Fuego y Ritmos De Piano Para Cachorros - 3 Horas
Relajación Para Perros: Lluvias & Truenos Para Calmar A Tus Mascotas
Mascotas Felices: Sonidos Tranquilos De Lluvia y Viento Para Aliviar La Ansiedad De Tu Perro
Mascotas Felices: Relajantes Sonidos Del Bosque Para Calmar A Tu Perro
Música Para Animales: Sonidos Del Agua Del Mar Para Que Tus Mascotas Se Queden Dormidas
Mascotas Felices: El Ambiente Más Relajante Para Gatos Y Perros
Mascotas Y Naturaleza: Sonidos Tranquilos Del Río Para Perros Y Gatos
Perros Y Gatos: Sonidos Relajantes Del Río Para Tus Queridas Mascotas
4 Patas: Terapia De Masaje Corporal Vol. 2
Tormentas Para Mascotas: Sonidos Relajantes De La Lluvia Sólo Para Animales
4Patas: Música Para Aliviar El Estres De Las Mascotas Vol. 1
Ambiente Lluvioso: Música De Lluvia Para Perros Y Gatos
4 Patitas: Una Noche De Descanso Con Lluvia Vol. 1
Dormir: Pacíficas Noches Con Calmas Lluvias Vol. 1
Lluvia: Momentos Reconfortantes Para Perros Estresados Vol. 1
Relajación De Mascotas: Una Dulce Melodía De Lluvia Para Relajar A Sus Mascotas
Música Del Trueno Para Mascotas: Sonidos Relajantes
Bienestar Binaural De Perros: Paisajes Sonoros Calmantes
Sueños Binaurales De Perros: Melodías Pacíficas
Aguas Relajantes: Sonidos Ambientales Para Perros
Arroyo Canino: Arroyo Pacífico Para Perros
Caninos Binaurales: Ecos Relajantes De Perros
Patas Pacíficas: Música Para La Serenidad Del Perro
Paz Oceánica: Ondas Binaurales Para Perros
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0100cc621abe780c35ac413a1093b4bbc4ce182bb783878eec99362d4a1744. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBRKQ2463674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614cca000d43ceb05c4128c1339f485ab2f5c3e22aaca2cfde8489fadf7bac88. 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/GBRKQ2463709.
Música De Piano: Ritmos Alegres Para Perros
Música De Piano: Espíritus Melódicos Alegres De Perros
Música para Perros: Música Tranquila para Ayudar Con la Ansiedad del Perro para Relajarse Perro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7752a69a9321611aa72ba8c9e2e875f90e210b2c757145fa1305804e75e0588a. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZTV32536047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b1039c6c63473d5895622c64326080e573c467e1e763d1e888109c69e3da03. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZTV32536048.
Música Tranquila de Guitarra para Mi Perro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207eb1fc59c9b0967a3632172151fc35544fc21dbc37222ac8b87fedd1f709a5. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZTV32536049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c99ef9839f705bc24a49e9e20d19961215f6e9e945625c809cf1d0931be757. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZTV32536072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae50b5f0880b1ac1c768e46ebaaa5e96ab4395cea4e5246da1990aefd73e4d8a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTV32536080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b50b42622a41ca273dd119a6adc377a4fd64a6cc5f84567153e25217c5fca0e. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/QZTV32536082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b2ffecd5a1c293633aeae625325e2afa4ac0023c97f3ca8c2db071f5585116. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZTV32536086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6e18dcc45a89bffe2f91acbda72c2d8cf5da65a7203755b2b4a82902da44b3. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTV32536092.
La Mejor Música para El Mejor Amigo del Hombre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e14513f097b9782cd658ee68b07411eecf2fbdc3c60b549286d8a4f395a9bc. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZTV32536094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2937ec1bfe06cffe668d5bd3bd118a262974f924cd0c8090f4c27a78422d0d. 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/QZTV32536098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55758e48066562edbcf230ba8f6bb62508b32284c2347b386569d98dafeff73b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZTV32536099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a769aafc0f04960d4af63516889d3585d416ae070bfb4483c5df6b68db15b5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZTV32536100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ec9a09ee4620954feef5eeab041bb356df7511141ef8ae277977bf731e38a1. 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/QZTV32536104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda83855d11ceed22ea049583a30121660b97661fa933ed2179df42083601f09. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTV32536105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4102c6142e8d37161b40e7508d88fde86361142f17e5f156abe88ffa09a4c5e0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTV32536107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8fad4f0ddf0827583fbae97939d0292e2dc4fa2c36fce71bac4b89ffd52639. 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/QZTV32536108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4837819fdd8d3f93f4b633a80cd3f36c10b05a5de769096be42679690145e9dc. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZTV32536110.
Sonidos tranquilizantes de la naturaleza para dormir al perro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7188f5b8372d9a0339e03f715195603f2db25ec3c9c9cd7a9aebed1963a1907. 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/QZTV32536111.
Sonidos de fondo de la naturaleza para dormir al perro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea3bc605ffcae2d83bea37d3b46c7e1d7a8f1dc10dc87db10e8635d01b5da94. 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/QZTV32542923.
Música relajante para dormir profundamente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1ade52710523aa2e08a80825e7130ef382774a7dbf4bb93437519febbdba4c. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZTV32542944.
Música relajante para dormir a los perros
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b953e3a53753137ef29d4bd0ec9b3f7fe61a7e33e6c8e79335cbe804eb3447. 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/QZTV32543008.
Música tranquila de guitarra para dormir al perro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763167b3f00fd4eba58ce815e6bb42e4d3617759b0c2588137f4ad8b9abb990f. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZTV32543778.
Música de fondo para dormir a los perros
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383d948afc269696dda96d4715aa466840c2ff79f7f9fe8635826b3ca31d0497. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZTV32543798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3bd220f8a3398d7426879164ca07005049bc4a815bd218a715ea599305161d. 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/QZTV32543820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c046ad3fc8ff4c33f38be3325110ef343db3b9c8d66fcb9cbaa086ebd9ee0cd. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZTV32543833.
Música suave de guitarra para dormir profundamente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff4c66e22dcfb105da762710e047c66ee74ce5935e2e892545221097118c85a. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QZTV32543838.