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 0x8dc084366549f1d01a59b5eb08ee6054a1fd853c685f4aeade5cea6237be6859. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f09e88c1-a3c2-413e-844e-41c3dd31d2f7.json and https://artists.proofprofile.net/proofs/artist/f09e88c1-a3c2-413e-844e-41c3dd31d2f7.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 0x3cf18bc637edc804339071507bef8830103d9a786942b892c75af5684fbe1c96. 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/GBKQU2066339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c501614cfc08517cb6b8d8667e62939cab6b9173b34119293a781dec425859. 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/GBKQU2066341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa637e8e2014fff9d2850df6f77ed7a4558049dcee3388b6900e6b1875339e8bd. 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/GBKQU2066343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed0329b5e82175e67bd5aa927df7cfa9ee2c4054bbe7333a9f012bf317ff5d8. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T09:03:12Z), 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/GBKQU2066344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd51795e52dc255580664d262e833dd00437629051254ef4909b487bc8a0044. 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/GBKQU2066345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c74452f13eab7624ef9b05096bb0a7f836891adfa9241e0de9c1a67ea30f445. 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/GBLV61925574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbaf0a6677cd18eaa867419239cecbfd09364b7fd23aafe4084c67bb018fd5f9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKQU2070901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18d77949a7510b11c5b189285159d613f90823c743195898800875d78841db9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU2050635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b689e5a57dd50e82eaeb26df8277700e7e1619b8526b492e47efaf28e92741. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBLV61914733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4548bed6ad7762c3acee364fa8841b9d48f1cea0093211e6bcf0491f302c824e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU2015778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4548bed6ad7762c3acee364fa8841b9d48f1cea0093211e6bcf0491f302c824e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU2015778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5e8033be83d400ec62d70dede5bf0016c4bc890a830dae72e73015205f323e. 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/GBKQU2015779.
Balloon (El Globo) - DJ Quicksilver Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b76b322066d2b5829d78f7bf6cc8a9ac6fcfa372c43cdb6d99e64a0809e36ba. 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/GBKQU2015781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b6b0b4dde864115bb9e20b25634c941cfc9d8a91b2e94d43cc6db7e931de57. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2015787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aeb2070ac3eab55518da37b1e6ee5ef3e90d63d7be53f111e944a293325b6bf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU2086399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd155c766735b26d6a8103478c7b8b8c76fd336eea83f8f31d9924c4803e66b26. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU2086402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32010a1d90becb736b15806c77e37d26758ca5c3e16e7c172c9d2ee19a0b0017. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2086409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3dff42e75d2356a507699824b9118e2e798fd7c3e21e82d4d32075b8249d13. 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/GX4632200003.