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 0xced34790f5aeda45ff0788c4d2a256593c327b198e396ed3623654811d2f8826. 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/e73dbcdd-2e3d-4906-9c78-9fd78f796081.json and https://artists.proofprofile.net/proofs/artist/e73dbcdd-2e3d-4906-9c78-9fd78f796081.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 0x8df697d188314a7f8f1b0beb2041189f0df5a987dbc1e3222054e96a98d0f3d2. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZWFX2455790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b00298c071b0878b65bb2a871e6df11a26f65c7b847dfd9d138148cfadb88e. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZWFX2493334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d41191a965367b0fcfd3f389303ac6f3852b56450c310d3f420a912c3e48f3e. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZWFX2495298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a6c046921dd713f5f33ef811c142c409c11a3831edd8915755f74ef538b5f6. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZWFX2495292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde00427784d4be6137bcbf0a0552fca8c25423e0fed23ef77aae30dbb022685. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZWFX2495277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bba18736feb447eb34f80ecf6e5369d590ae4ceb1aa9ee1f686dd13271e5b0. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZWFX2495297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb600ac3db8493d2454e6fd33148638a46c9590aa31c6b334026b6763bd09f9. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ772431344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157a0bc3b18fdd1a55fb8a8342ecb4e33c9612202a157d87640b5ea9f867b35f. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ772431335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f556a5693c2895638137ed2e62e8fdd4b534d01001fa5ede4262ed53f8976f. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ772431397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ce922fccb33262b1bf54b3f01752c46660df2e9cc24c9fdb594c66ead0a103. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZZ792435898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ded7f320cd60f522fe2b15824f958065ec4eb477df43c613fc526d51c9eebf4. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ772497237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ec1942ad9dbaadf9ed82365967e3e9bb19a2bdf27c631ee9e1edd88e9c2219. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ772497238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43777654effa1b4ab8c334201851320b6412a60d539184cee9112dae6d981d27. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ772497241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd21bf19bcee81bcc82c3a7f5b9d1abc6ecd9f902c8840f2cc6b4b9f84e0dab2. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ772496239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749b6436255daa1b5cf3e34d671154f4c37dd5e047a0217dde2405ac38dc65a0. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZZ782417825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bc6d70887d5c546b762ffc6efecc5aa651c30b82b67a3877430c8ba1597841. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ782417796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4561f759aaacad0c4934c827db9ffd473ef6394fe7734d1d051ddf4ca65c9ff7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZZ792456388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfd9c94507af82c2bc815fed3f94ac8d7e2775e6c2a6e1e5b2792523668c6c7. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ782417827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e211ab00eb17ca97608e05469b79e7a0a0c3738be84c6a36d122b3a092ce696. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZZ782436544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9c5e9daa1a5e1521b75e67652e1656d84a8e9786a48aad764abf7e716dfd46. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ782437770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc25f04c138acb61b602d60a6709d9f6d3cbaea364176f6033da05a52bc179d7. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ782437778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86aac4f539c59a748020cc8bfc8ea5d09497e01823602a6be177ab8ab3a031e. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ782437771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e6be9496a7be71456c1419105233362e5eca17badc0ad5df7fef5889a1f381. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZZ782437777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb24f152f03b8065c169ef0bd2aa20c2055e5d27626908990c63af93b0dee0d. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ7K2402749.
creative soul with a passion for adventure
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c320f028a318cc8147104ee65f70942168b7c9c3d979a26ff68c3d7a8ec98d8. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ7K2402760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c56faffaae2904b43c92a337f4cad1d5c1d77dd8dc49eb6b88fd08320593a5. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZZ7K2402750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861fc227fd226e14fcaa15076d5aa205e1a62c8baf094d5891a309f4defda912. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ7K2402746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5d83d7ad9f0ba35be609024cf429eb845a1baae4e56e7f4640e37734444606. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ7K2402736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec383402bbb51bbd1d03a7dd8f022a6a493975a47aafb481277d73f4d465cf10. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ7K2455885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaade3fe1abac0dd5c793b389cf2f6e86b1cbed6055ff2a878d0524cbf2c7b30c. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZZ7K2455867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee4b99417bf3a8f33e066d74f6511b9f7b522402897e23e8829f83501cf097a. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ7K2455876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14732603307b36c866005de86d4dcd8b478c1956e5cf53ad1ef0469b7c12a1e. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZZ7K2455171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfec56546d2bb9b1a79ead0720c9fed97f3776f2544b9f70c00e821d91d866c8. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ7K2455886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ce98660455285dffcbdfede9f356a10a2b7d446fe6b5ddd11337a2c2da2ada. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ7K2487921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5da6820b30614ca6d0f5fb8149f17e9cfe7348e145bc6a3e06673d9a0af7cb6. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ7K2487961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4a2bf95835af8cc00287d492a3f77fc9e628e27b1adc978821972ce5f5a357. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZZ7K2487925.