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 0x4b7a58a99958580fd69c491eb09d1e1ff75bef2ffe9c1e6c1d16d34ddd3fa98c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a304cfd4-c40f-4c6b-9fec-6d58629c20c3.json and https://artists.proofprofile.net/proofs/artist/a304cfd4-c40f-4c6b-9fec-6d58629c20c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Embarazo y Parto - Música para Bebes Primeros Años de Vida
25 Canciones para la Estimulación Prenatal - La Mejor Música Instrumental
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 0x94b90f997431ff39a6f166add3c197c6646647e335acfead27b372387195964b. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:01:48Z), 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/ITLU51807288.
Música Relajante para Bebes en el Vientre Materno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ed12c53d5ced1f5c58245ddbaba7a13cbe7c1193531863619e335c2b8c23c1. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:38:10Z), 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/ITO101838904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758cc3410ab889668c92f8a644ddff3767fe5ebb4ef0e98f0e4f06c26bda4c4a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITO101838905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36d886438e6055cd242e472c1beade764282119d6d1f2feb28ae435b437e497. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101838906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa046ef2475232a3af8c48c208c2f2339fa7eb5acf192ce89309a89d8800d3c41. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ITO101838924.
Embarazo Sano y Consciente: Música Practicar Yoga y Meditación para Mujeres Embarazadas y sus Bebés
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Después del Parto: Canciones Relajantes para Recién Nacido y Mamá en Cuarentena
Estrés Laboral: Música para el Regreso al Trabajo, Ambiente Relajante para Oficina
Música para Dormir para Mujeres Embarazadas – Música para Dormir Mejor Durante el Embarazo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd342c9d3647ed0139f8bc76dd0039e7f3f1ee34ab188c18824785777abb252fd. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:31:28Z), 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/ITLU52027231.
Bebé Hermoso: Canciones de la Naturaleza para Relajar y Cuidar de Tu Bebé
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3b301664d72c688a113928fe9c4862cc7fe4253da07c0ccdb0df02c07a0b2c. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/ITLU52049537.
Secuencia de Yoga para Embarazadas: Canciones para la Relajación Corporal y Mental, Sonidos de Útero
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Madres Primerizas: Música para Calmar los Nervios y la Ansiedad, Embarazo Tranquilo
Música de Maternidad Durante el Embarazo - Ayuda a aliviar las molestias del embarazo
Primer Trimestre de Embarazo: Música Relajante para Mujeres Embarazadas
Estrés Durante el Embarazo: Música Relajante para Prevenir los Efectos del Estrés en el Bebé
Aromaterapia en el Embarazo y el Parto: Música para Terapias Alternativas para Mujeres Embarazadas
Ejercicios para Relajarse en el Embarazo: Música para Meditación, Tecnicas de Respiración, Yoga
Música de Piano para Bebés en el Vientre: Canciones Relajantes para Embarazadas
Embarazo Sano y Feliz: Música con Sonidos de la Naturaleza Hermosos para Embarazadas
Relax para Embarazadas: Música de Piano con Hermosos Sonidos de la Naturaleza para Futuras Mamás
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83831cf06f231f2b64fde8ef557a2d3d0c107cbd5f0ccab8c2be66d96f16bd52. 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/ITLU52099963.
Bebés en el Vientre Materno: Música para Estimular el Desarrollo del Bebé durante la Gestación
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee346bacdb585e13b6588efd4d44bd4f415041dc45e741edfde999553438ecd. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:04:06Z), 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/ITLU52106499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7acfc457ce2e9d3efbc187b74c7919cceb210861bdd10fe57583b6357eb17a6. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:11:13Z), 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/ITLU52106502.
Fisioterapia para Embarazadas: Canciones Tranquilas para Embarazada, Aliviar el Dolor y Ansiedad
Música para Embarazadas: Canciones de Cuna New Age con Sonidos Relajantes de la Naturaleza, Las Mejores Canciones para Bebés Pequeños y Mamis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c243e543ccd4bbf395ab35e089fd528161bfe6368935f78b9e6467ac115e532. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO102224227.
Experiencia Maternal: Melodías Relajantes para un Embarazo Pleno y Feliz
Meditación Profunda: Relajación y Tranquilidad para tu Mente
Meditación Profunda: Sonidos de la Naturaleza para Relajación Total
Sonidos Serenos Para Dormir Por La Noche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89e7fd9e91a5ab3bc6d7b347e447ef0e0d55cf7045f0b1b8bea3e809095d285. 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/QZ5FN2589983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0910703a41c528e3f176a77ffd11fdc9c7cac899814ffe210d1294a872902c1b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZ5FN2589977.
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