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 0xf29fe8a201cb374d31c2c33a30c8413ce36818ba0072a056a73a995c9a864f45. 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/1b57bcde-ac53-4ed6-9df8-cd332703df7b.json and https://artists.proofprofile.net/proofs/artist/1b57bcde-ac53-4ed6-9df8-cd332703df7b.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 0x9dcde14cf1888790fbfbdd942b2cd08175fbc7b11a3e170b2b9a509ee8851d83. 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/ES71G1756071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b4937e3a00e5e9c47c509a2e93f4a34d80591f40f7ae86b5eb786d10308ef5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ES71G1875235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d19f69d353cb3a815ddec7538cb634cc6796a1d76db1aa21b3565c31537cea. 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/QM4TW2099964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ca7fe589d266897d3caae9c2a127e7ae2fd4f8c67777e2e0aaac744b05f266. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QM6N22001415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe234690793992dcc2011e87253339d0697ea8ed9ce8c19a58419ae8d11ee9f06. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QMFME2197448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057f125a179b9f4f333bf3c83eed8ae36c673ffbd2e4b82a9305f7c05098d706. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QMFME2197445.
G STAR JAVIELITO GREATEST HITS (2014-2019)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3f7801f289a0a4b6845bfb36f24300135306e7c73b8225698c73afb5663a19. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:09:43Z), 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/DGA0L2348694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc02cff3ec86e20fff3631e5245b2d2e4207fc3ad19346ec25998e821be46796. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM7282007306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d1a24ebe8e4e69ca34dc21ecfbb8d15fa28a0a8449db63d2dae79131b73de4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUYG1270183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f71b68f5157e52b49a19a270cb9469fd65fd3aecbbd16ea116595211907f52. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUYG1292221.