{"copyright_id":"0xf8047c961e7dd4be10929a135e5a71d464747be96e021160f8dc93441dff53e5","name":"Grupo La Broma De Leobardo Salazar","registered_at":"2026-06-14T08:10:40Z","symbol":"NIM0391535","token_address":"0x25e0d33b3a48ecb7aaf7ecd3af7918dcb9c64523","type":"artist","uuid":"22faa7c2-0c6c-4feb-8ecc-2dbefe7523bd"}
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 0xf8047c961e7dd4be10929a135e5a71d464747be96e021160f8dc93441dff53e5. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22faa7c2-0c6c-4feb-8ecc-2dbefe7523bd.json and https://artists.proofprofile.net/proofs/artist/22faa7c2-0c6c-4feb-8ecc-2dbefe7523bd.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 0xc6634e2d8f78e6e1f4ebc36f78268476c82a29811f300d531d28722356e8b956. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZW9L2293083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bec86047e3c23b6b3f769d3ee3877347dc980965faa623334a077b898cd27b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZW9L2293084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce141c73e1f57e02f96cb1cfd0475d9c98e24e0c31ca7145a578c9ca64357e2e. 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/QZW9L2293085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157afd60bedac1507e2520dca1aca16fc64f0136802f6da4dfeb053ff4ba7964. 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/QZW9L2293086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1612144323ea1754aa5b149c5351088b348440c52c92fda79e3ba0b6e492a5de. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZW9L2293087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6e8bef8a68f1a08dbe987da559e03687522c24203500fee25411a77992f7a7. 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/QZW9L2293088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe034eff8fa18567f6ce005605281fd1dc1669ede02496df328724fa8c00e14d9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZW9L2293089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e6267763a151f00cb306debe7624f81ef063251e5d4f63ee23854d6d5a8a99. 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/QZW9L2293090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ca5e54324492631a5807572de8fc0862961110263ae5fe6dce43e42650e782. 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/QZW9L2293091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc4a13a26a18b7752be60c443975d985101efe95b561471a7d165ce03db59e5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZW9L2293092.