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 0xf8ee6d747b79a751d387d8188838c28d9bbd72aed8de9d67e56edb40ede518aa. 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/3750afbf-475f-4df5-96db-62a7908ff4c4.json and https://artists.proofprofile.net/proofs/artist/3750afbf-475f-4df5-96db-62a7908ff4c4.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 0xd4fdf2861d74e061a04c88ad84d37dc30b4c3942579410c97a0527c7556ae644. 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/QMFME2344732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677dff2acd37698475f42527fab0db53e26f8573637f44c101f94b3b64e32d64. 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/QM4TW2382110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05b4d255b75583c7cddb266fc123a7bad2b08e8bc1405caf1d7eb94967fafa9. 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/FRX452220985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1ef9e1943a233b647877722d1791935ee9e04935dc965bcadb340999592995. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMDA72384317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9239e2eee0aded149a2d9e4da54c7cf69d4658c5863aa19dc6fe76a13a9bf15. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMFME2344774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197ba1cd67cd12a32efdb8264f81769f561611c28a846a203d69650d10bf699e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMDA62308987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89015e2d466d96b48860e18bacb4dfe275e4cda3d20ebcae8de656e7d874e0e. 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/FRX762223267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8db1681a1729e50bf5c41773ce0c5d3ce50a558516db75e939d9352cebb052e. 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/FRX282165687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8cc168bde7ed9dfde6ee44ed31535d7b6a91f20936f39dd9fa3a2c03ff0d91. 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/FRX872107334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4152b29eecc4d6710b067f98e6da7c44c239e1b58784d005870a43d04cdbd8c6. 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/USANG2198773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696faa07015d6361249a43a48ab1a12565a874a0bc9dcf01e7705bcad3942eb1. 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/USANG2169716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e75084071c7ac740f2fbf2715ae0051de56d5849c8196befc25cde598d598f. 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/FRX872107335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf933a294bab0ade05c9bf53e14f7f92c910cf00324a92aa6ca27b862cc048548. 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/FRX872107336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38ea6567033aeb34d4023843797411f2b96aca5b45da1d6fa77e04fd6c1e41e. 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/FRX872107337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1ef9e1943a233b647877722d1791935ee9e04935dc965bcadb340999592995. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMDA72384317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197ba1cd67cd12a32efdb8264f81769f561611c28a846a203d69650d10bf699e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMDA62308987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677dff2acd37698475f42527fab0db53e26f8573637f44c101f94b3b64e32d64. 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/QM4TW2382110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89015e2d466d96b48860e18bacb4dfe275e4cda3d20ebcae8de656e7d874e0e. 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/FRX762223267.
EVERYBODY LOVES A WINNER - A COLORS SHOW
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72b1e0012076fa7a128d81f03ada4d7d9797215da7b13123302d9af25dad5ad. 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/DEXC82200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05b4d255b75583c7cddb266fc123a7bad2b08e8bc1405caf1d7eb94967fafa9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX452220985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696faa07015d6361249a43a48ab1a12565a874a0bc9dcf01e7705bcad3942eb1. 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/USANG2169716.