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 0x6b4f7d03212ed75cef2985007292f1048983da0d27a0113216de4c3d146a4a5e. 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/7be0051d-7a55-42ef-afb5-6318c7b0bca6.json and https://artists.proofprofile.net/proofs/artist/7be0051d-7a55-42ef-afb5-6318c7b0bca6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xc9c189b2f8bedd1f997a20cc520a8806131a4355776d6fc6d34a3456caf9013b. 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/USJ3V1429149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e31dee36073e63dfe33aedce145735ce57e6372593ea00f18253b08e0e2120b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USJ3V1429151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fbfdfebe171a6d9c13364fd4349b3c707aa86887bd230c9c25825a21be904b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USJ3V1429153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8036524743882e24ad7f784d9c727cde236dc1f0137b6ee61ee24e8337975016. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USJ3V1429154.
Música Del Océano: Sonidos De Una Naturaleza Maravillosa
Sonido De Ruido Blanco Del Mar y Las Olas Para Dormir
Océano: Descanso De Semana Junto Al Agua
Oceáno: Música Y Sonidos De Las Olas Para Escapar
Música Para Trabajar: Sonidos De Motivación Con Olas Del Mar
Meditación De La Mente: Transformación Del Milagro Del Amor
Agua Salpicando: Relajación De Playa En El Verano 3 Horas
Ambiente De Oceáno Para La Felicidad Ses. 2
Sonidos Relajantes De Las Olas Del Mar - 1 Hora
Música De Meditación Con El Suave Río Fluyendo
Sonidos De Las Olas Salpicando Suavemente
La Noche Oceánica: La Mejor Playlist De Sonidos Del Mar Para Una Relajación Instantánea
Sonidos Reconfortantes: Música Para Bebés Y Mascotas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec51449e9b7a7fa250b448656cbd9adc442d65f9e78598ac263da499960c1a6. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZ5FN2577603.
Calma A Las Mascotas Con Melodías Lofi Calmantes
Reflexiones Tranquilas: Música Para La Relajación
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51053bbb845e7afa73a42109430193d52ecc8cf22682b3ab39ff21e02683256. 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/QZZEC2402320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342ae39ec72e7bb73fce8361897690d3b36d2a3c167beaf1ae4dbb74eaafefd2. 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/QZZEC2402328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2065c9e0339fe056b2d36cc2ae0a9a1fd2287410df281ff0e9402c85ef001636. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZZEC2402336.