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 0xbc69bbcf9e1405b65e70c264697f442ebb87ebd751baf7f954125eb5939c0a27. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be94e0a5-0339-495b-9aa4-4bd661a119a3.json and https://artists.proofprofile.net/proofs/artist/be94e0a5-0339-495b-9aa4-4bd661a119a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Star Eyes Bonita (Pelicula Niñas Mal) [Original Motion Picture Soundtrack by Sony Pictures]
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 0xaa365810b075b1082f46563dae60e46a81013143562c5fbca0471494a07b95a3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTAT2330001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7199cbfc67e092c9a4a04307d870fc6cff26f48596987a9897ed80ab119c5fd7. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QZK6G2336812.
Mucho Time (película Niñas Mal_Original Motion Picture Soundtrack by Columbia Pictures)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc704d951c402855ccb5bc4a4895d5df67cfa986ee409fc144b0d5bd8833a59. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZTBD2381193.
Big Fat Jumbo (AudioVision Bogotá) [DEMO]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bccd63ee395c9610fe74a091139f97684a4a14783939e0c443912c16666a590. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QZHN52434975.
Bring Back Time (Audiovision Rec Sessions)
Atari Comunista en [ en El Piraña México ] (EN VIVO)
Funky Malibu , Ruly Tamez (ex VICTIMAS DOCTOR CEREBRO, Camilo Ferrer, Malena Di Bello, A. Gulmar (ex VOLOVAN), SEXY SETZY, Ryck Mú! & Cocky)
Funky Malibu , Ruly Tamez (ex VICTIMAS DOCTOR CEREBRO, Camilo Ferrer, Malena Di Bello, A. Gulmar (ex VOLOVAN), SEXY SETZY, Ryck Mú! & Cocky) - “EP: Los Demos y Sesiones” en Audiovisión Bogotá 2004
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c85f4d4d5489c84097c84ef1dc53cb40e05fd534dd7f5849d28e94d8de29d4. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QZWFF2555725.
LA BONITA RowMiX 1'rstTake - EP: Demos & Rarities @Audiovisión Bogotá
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12804f83647b673ff0aae45c570a44925df00b63793de3c5a42f88988602ccba. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZZ772537786.
Nada queda (Ryck Mú! & CINEMA Synthwave Remix Radio Edit)
Nada queda - Ryck Mú! & CINEMA Synthwave Remix Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9166d65888b86921ee2c909dbd353f3cf8bd82fa4228b59cef29f0131ad24644. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QT3FG2544701.