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 0x68ca197511fb8c34d65cc2bfa7fc124f1cbd91865b43406801af2e0989954e5d. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2027b3ac-207f-45d8-9a98-9a8031a85862.json and https://artists.proofprofile.net/proofs/artist/2027b3ac-207f-45d8-9a98-9a8031a85862.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for Springtime Stays - Trumpet and Alto Sax
Jazz Trio - Background for Chilling in March
Latin Big Band - Ambiance for April Pleasures
Backdrop for Glitz and Glamour - Jazz Guitar Solo
Superlative Jazz Quartet - Bgm for Comforting Cacophony
Music for Glitz and Glamour - Lively Jazz Guitar Solo
Beautiful Jazz Violin - Ambiance for Laid Back Overtones
Tonos Frescos y Calmantes De Las Cascadas - 1 Hora
Música Para Leer: Tormentas Tranquilas Para Crear Un Ambiente Ideal De Lectura
Escuchar y Leer: El Ambiente De Lluvia Ideal Para Una Tranquila Lectura
Stylish Jazz Violin - Background for Creative Dreams
Quintet Jazz - Music for Colorful Gambles
Bossa Guitars - Background Music for Study Shapes
Soundtrack De Lo-Fi: Relajantes Tonos Lofi Para Leer y Estudiar Toda La Noche
Piano Bossa Duo - Background for Comforting Reflections
Refined Music for Amusing Earth - Piano Bossa Nova Duo
Lluvias De Primavera: El Ambiente De Lluvia Perfecto Para Leer En Casa
El Sonido De La Lluvia: Lluvia En El Jardin
Música Para Leer: Un Pacífico Entorno Lluvioso Para Tu Lectura Diaria
Música Ambiental Para Relajarse E Inspirarse Vol. 1
El Efecto Calmante De La Música Sonora Y Relajante
Relájate Y Concéntrate: Lofi Para Estudiar Mejor
Música Ambiental De Concentración: El Poder De La Mente
Música: Vibras Binaurales Relajantes Para Concentrarse
Ambiente Calmante: Tiempo A Solas Para Estudiar
Sonidos Ambientales: Ritmos De Concentración Zen Lluviosa
Melodías Instrumentales Para Estudiar Vol. 1
Mentalidad De Estudio: Música De Océano Binaural Para El Enfoque Académico
Estudio Tranquilo: Música Relajante Para Refrescar La Mente
Receso De Estudio Lluvioso: Tiempo De Estudio Con Sonidos Ambientales
Sonidos Para Concentrarse En El Aprendizaje: Música Para Enfocarse En El Examen
Pausa De Estudio: Música Para Estudio Relajante
Reflexiones De Estudio: Naturaleza Y Sonidos Relajantes Para Estudiar Profundamente
Impulso Cerebral En Calma: Meditación Para El Estudio
Serenidad Del Agua Para Estudiar: Música Ambiental De Agua Para Enfoque
Visiones Tranquilas De Estudio: Meditación Para La Claridad
Estudio: Relájate Y Concéntrate Con Música Ambiental Vol. 1
La Calma Meditativa Del Río: Ecos Serenos Del Agua
Aguas Tranquilas Para Mascotas: Sonidos Pacíficos De La Naturaleza
Ritmo De Trabajo Del Fuego: Sonidos Ambientales Cálidos
Nanas Del Fuego Para Bebés: Tonos Suaves De Las Brasas
Zona De Estudio: Sonidos Meditativos Para Aprendizaje Óptimo
Música Para La Mente: Cadencias Cognitivas
Sinfonías De Estudio: Música Para El Enfoque Y La Concentración
Sesiones De Claridad: Tonos Para Concentrarse
Serenidad Rítmica: Compilación De Melodías Suaves
Música Para La Claridad De La Meditación: Tonos Para Una Calma Concentrada
Melodías De Chakras: Música Para La Meditación Espiritual
Música Relajante Para Estudiar Para Claridad Mental
Armonía Relajante: Flujo De Música Para Desconectar
Ritmos De Estudio Enfocados: Melodías Para La Mente Productiva
Melodías Para El Trabajo: Música Para Mejorar El Ambiente En La Oficina
Melodías Inspiradoras Para Jornadas Laborales Productivas
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 0xf51706a0717d2ab76cbdaed7ec4ca6a2534d7627d8ab911081c4b35305bdd655. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZEC2404680.
Melodías Calmadas Para Concentración En La Oficina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efc4f6664d91d93dcce9a346217395b2c1ab2af8fc942fe742621327b839d07. 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/QZZEC2404688.
Ritmos Motivacionales Para Colaboración En Equipo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231af44e20b222224c50de6171dba2773614a9aeb02c945da30212f76be4571b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZEC2404697.
Música Serena Para El Ambiente De Oficina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0960680fb39ad7f356889bc3a3548ce88a5417eb13f38340fc6251a24c96078c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZEC2404712.
Ritmos Productivos Para Tareas Eficientes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560cd3956ea253757c9e87562e505f9ab2a85271d129748d8f8bd360df4488ba. 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/QZZEC2404721.
Vibraciones Relajantes Para Días Estresantes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998b3ff452ebb68ed4c25c96f7335c2c8cae0185c935e91c3329bbcf6afe7dcf. 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/QZZEC2404726.
Ecos Pacíficos Para La Calma En El Espacio De Trabajo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdd783611860725c66f2d5e3292cb1badca776dc47304631fd07667212ddbe3. 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/QZZEC2404741.
Tonos Tranquilos Para Motivación En El Trabajo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317cd90c732102e983d87b66301e50cec356010ed64e049a325947c52f99a1c8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZEC2404760.
Enfoque Hip Hop: Ritmos Para Productividad
Música De Enfoque: Paisajes Sonoros Rítmicos Para Claridad
Sonidos Suaves Para Tardes De Estudio Relajantes