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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d09a1e8e82e21dd7f3bd67f4809f229f219f09b3b0e88e1b38bdafe32aca22. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/841fb7ef-9321-48a6-aa06-81a295559444.json and https://artists.proofprofile.net/proofs/artist/841fb7ef-9321-48a6-aa06-81a295559444.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Música para Dormir - Música para Relaxamento, Fontes de Energia, Meditação, Massagem e Meditação, Livro de Leitura
Relajante Noche - Los Buenos Sueños de Música Relajante, Musica Que Te Ayuda Dormir, Sonido Delta, Sueño Profundo, Meditacion
Energy from Massage – Rest, Relaxing, Open Mind, Sounds of Nature, Liquid, Reflection, Focus
Happy Brain - Música Curativa para Meditar Dormir Bien Terapia de Masajes Ejercicios de Memoria con Sonidos Instrumentales Espirituales
Alterar Hora – Descanso, Calma, Perto da Natureza, Memórias Agradáveis, Bem Estar
Muting - Calm Day, Good Night, Lightness Feathers, Breath of Joy, Natural Sounds
Música Relajante Para Dormir - Los Sonidos Suaves de la Naturaleza, la Música New Age, el Sueño, la Meditación, la Relajación
Música Relaxante para Dormir - Apostar Música de Relaxamento, Acalmando sons da Natureza, da Música para Adormecer
Masaje Rejuvenecedor - Música Relajante para Ritual de Masaje Hammam Relax
Sueño Profundo: Durmiendo Con El Calor Del Verano
Fuego De Alegría: Música Del Corazón Para Dormir 3 Horas
Un Sueño Profundo: Rojas Llamas En El Medio Del Bosque - 3 Horas
Los Cuencos En Llamas: Sonidos De Fuego Para Relajarse y Meditar - 1 Hora
Duerme Bebé Dormilon: Descansa en la cuna, bebé
Spa Sleep Music: Warm Sounds for the Mind
Experiencias Binaurales: Gamma para una relajante noche, 2 hours
Spa Schlafmusik: Warme Klänge für den Geist
Relaxamento Profundo: Músicas Calmantes para Dormir e Sonhos Maravilhosos
Prática de Yoga: Músicas Relaxantes para Meditação e Calma Interior
Meditação Budista: Tranquilidade e Elevação Espiritual
Gravidez Melodias: Músicas Relaxantes para Gestantes e Bebês
Meditação de Yoga: Paz Interior e Aura Positiva
Relaxamento Profundo: Músicas de Meditação para Paz Interior
Sonhando Acordado: Melodias para Almas Sonhadoras
Acalma Dor de Cabeça: Relaxamento Profundo e Música Curativa
Calmante Sonoro: Melodias para Aliviar a Ansiedade
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea478d0af843b15fee45f63feaa8c05a54582c446752c7d7bcd9d1ea15ebb39a. 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/QZFML2305001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a12f7622744d9ab38115403e46fe5e824a40a366ca6e34643f6d5ea4d862b72. 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/QZFML2305002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936b74be078df09387156aa5c0c1c4515c614cac92da8f1392069372724afa05. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZFML2305003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9339f0db77e2f68cbfb6761b76c1160a2f0218ef3384881d0fbedc193c633b. 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/QZFML2305006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051f36989173e53b94e3693b2e20fa07cc9446c101762967592991bcd8b1d6cc. 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/QZFML2305007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252a4dc9bde2922e7490bb8496ea7bb6abbb580bfb57002893fae9b794ab06f3. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZFML2305004.
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 0x92c0da43bdae42e6a90c917fcb592eed94e714e5532d933f9a8e991479667574. 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/QZFML2305005.