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 0x9f507f428e444cb173a39e698f1093681f8006e89e07363fc4a9a9cbfea4b914. 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/0a3889d6-a572-4370-81cd-cdc45f7d5cca.json and https://artists.proofprofile.net/proofs/artist/0a3889d6-a572-4370-81cd-cdc45f7d5cca.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 0x641e94816e0506810f28b602ef1a27c0eb90974cbbd5b6b7480b4932a6951fd0. 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/GBRKQ2483174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa369a5efd756f7f83df0fe0ed4506a82b6f01f7b2e1f9374bbc4da332b03a4e9. 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/GBRKQ2483185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d07196fa946dc8eb9bc6861b240981ff6c2e65372b1f64ca7908ea596f742d. 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/GBRKQ2483191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c2558902f61a081aaeff7449e632075a8d0a2b57764214b7a7c0e551a4d142. 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/GBRKQ2483198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3adb104bae54357d567368bcc41096d67d72993ab8a733f6abe7cb2240c290ab. 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/QZ5FN2469669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5caa72e7b24ff885159f38081ecef25cc776143e1ee5d02611ddc844ee4705c5. 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/QZZ8B2336946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d25f5798ea618a3956251e434383fd934d65599795c6073f39a7a059deddd5e. 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/QZFYX2320439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48a88fdd05b69578dcfcf182c006ef56de14e48ad0eea1a0a01e43f35842df5. 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/QZFYX2320442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f504576364a7402c7e27ac20c5f6b14157adaef8044624453db9fdf8223bc3. 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/QZNWT2234920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a5d35061089f9ff4acf7e5cc641aa7d268dd5faad009896c3c69b793963aa0. 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/IEBAE1800180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8438ed3ef04f836d52c895548e90ac4c6de0240723573e9860096a74c2df980f. 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/IEBAE1800181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c009ee979d151e0207c2051af827e9e74dd899b191a9398188195280978a179. 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/IEBAE1800182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f6162c7a463b8e501a20dcedbb9c6b724378b9036d1b22b574c60f7585db04. 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/IEBAE1800183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf10662af92e808b921ac12e15fbde6a4cf8ec0db1b7d4599aceac49600f62c. 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/IEBAE1800184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1280cc5488f735e791c899cab16f9a16b84e2c6b3d452bacdd3d2a7df273698. 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/IEBAE1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f68e87bf961101c46e05201fed85ec71c9b44f2092f6b663d4a75784f05622. 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/IEBAE1800187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499d8fa68f102e089483ed2c18ff57f66a45db776b32fa427aee5a3d3be1b564. 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/IEBAE1800188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5e1e51b83094d3691a68e4541b0e7866f278218472a48a0b686b82db07e22d. 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/IEBAE1800189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ba0479d10560010db92b1f506f700f8cbb4616e7e1fdf0e956bb65129091f8. 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/IEBAE1800190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869afcba6f291756132923fcb5272ccc24757cf9b523d2149e1781803d51c5e6. 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/QM24S2206045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661ecc0f1b42813e1e0c43504e5a7c39f601c7410af660559ce30431f6834777. 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/QZK6K2294033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8e19b5bc6d9f02fa7f8d526988beee25dbd6f1fe769c2854ee2aa643c00e51. 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/USUM72119825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3d82d534faeba291d768ccfee3ac940e7741c7c63c49f834dd69a846dfc437. 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/QZHN82105817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06401e420a88c39dfd15fd3761219ac3bee3aa142cc7367f0ea70feaf33c8db5. 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/QZK6L2079454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962e5d41a253637f614b1c2c076e82e632839f83c0be242484539bee5fe8c044. 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/QZDA72033784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16e9ec60d6bdfc0d9fb88efe234b6538b4d4323644be13256fd4f966e15797c. 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/QZDA42022408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac28d0fda9eaebb98211fae208ce90068a7ab1ee4d3395dbde6a4f1acefd0170. 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/QZK6M1917824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1755d843ac37d1f4af37ddb1dff1aa918fdc998c2bde1bc40233f6138742b026. 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/NOHEK1901061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbf699b42ea8c6f081c06ab88df8ae4e858bad6c8fa6e2813cd49bf02cca519. 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/TCAEI1994333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c4f4a18a6845540d5cc1859a8b5b0ebd87b23db3bbf7bf95aa0bcf428d16ce. 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/QM24S1902985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5a5a39ce25173dd577881ce89ceea886b1063a0273e2f0eb48e35ff7a5c493. 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/QM24S1902984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54e727eccfadfd39059ae41682de03eb5522e7fc6490f940a361c29b574620f. 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/IEBAE1800179.
Lookin 4 (Feat. Joyce Wrice, Devin Morrison)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c25cc28b227e33516e4a793833ec9865c89e1386e9d64682502b9e84a98143. 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/QMEU31917089.