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 0xf6676f3d4c425310e1a18c77d50d623116b1216393ab74668b74064f7a05271f. 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/1a769000-a0a5-4ef9-8a4c-992195b8ff4a.json and https://artists.proofprofile.net/proofs/artist/1a769000-a0a5-4ef9-8a4c-992195b8ff4a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a1cc49f2c1f711297c3ce28ddf3c26a915b11611122f6f078b39c3d7479b9a. 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/CAQOI2301497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ada87f5f4320b2c76043d5daefa2d1a012dca90235f0da6d20c5544cd1556ae. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GX8LD2354549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c98f21c5e2f445e45fac5c588418dc1addfefb199e33f5e2524b5dd1b1a0ac. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/NLQ8D2300120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441f1c01fe99c3a44cc2ddde7a14edccb1b3a99d02bcb962c810171878f8f717. 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/GX89G2368953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc746dd696bcb8da4197b77ac90c0fcf5f10e943d965b671e83065803bbf3a9. 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/CAQOI2300238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa905b1e3391b2bc7f1dd7f62c805ae82874e1ba510adad4a004e48bdc2d25775. 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/CAQOI2402799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3046e11f3009f1c265bfdcee4720be094a6bc4b55adf6c0aca24033d801295. 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/NLT2H2300884.
Corazón (feat. Nicky Jam, Aloisi, JP Sax, Nikos D, Replay M & Sweiz) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3479234b064b7652704cdb7bb85b98835435e0e4f7226c4433010338390ead1f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITG412100136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc592c14c24b1ac6ea5e4587ebc661649125e5fc5f81f09b99cd5a921e58499d0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITG412100134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97478c8f7755b3b0e8796b6c2348c5493b6df8c5fc0c19b39abc9a8af3b6b6d7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DK4YA2270301.