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 0x1c82f121e9ea524e434f2a9949b1f18d65adaaa2242282978ca38ea6ccc37d98. 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/128069d6-9610-4039-b2f6-6b6b9b4db61e.json and https://artists.proofprofile.net/proofs/artist/128069d6-9610-4039-b2f6-6b6b9b4db61e.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 0x8dbba040b62b8de931d34208f47833920ee777e49b61ecd9fecb3740c19ae215. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/FR7S02400320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b75ddcd3b42a37a417e8cef4d3d760be348e3300e4019123dc48f5364639939. 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/FR7S02400300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6f3aed2167609c77e1a0e38bf6d23b090e51b799a2ab40204ea61acae3f098. 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/FR7S02400310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dbba040b62b8de931d34208f47833920ee777e49b61ecd9fecb3740c19ae215. 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/FR7S02400320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14645521d20ee50c0b87ac34794ce7af1ab56598d245eda166431fc73b6b958. 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/FR7S02300690.
Les mystérieuses cités d'or (Version Gabz)
Les mystérieuses cités d'or - Version Gabz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4e8e7de8c9f11916fbeeb9949121cf4f2b5969e014248351c67ab59a854327. 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/FR7S02300590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb986ff4ca9a3fded0148ba1a3f9c4105db7d73f76bf4ded8546cfb8bd167529b. 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/FR7S02300230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70df9702d6646e5edde7d305e5819727b0508ac98a69b1912945b0ceac2be5b3. 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/FR7S02300130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb11f40eb5d863e8ebb20cdad60beacad52ebd4cfd84c2badea49d401e32ff11. 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/FR7S02300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a08d364eb4db8f14e0e32b84ec665509e3a2416c5c0fa571e41244e4ddad061. 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/FR2F42100930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698b0601224b6aa1a8a704ac666523fc5186430783d34b1a633a371f1d401457. 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/FR2F42100940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd044bac035feb0f821414b4c5b0ae6c98e3573e3f72b9562d31ca5b0980ec4f8. 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/FR2F42100950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8422950d81d0e9dfd35c4d2a0e37d2eaa34adb4a250849ba8de375b1bb925d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR2F42100640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd63f936f9d63a11d0dfb0294cfbb20c1c1a719e7d5f815f837c0a6283a27666. 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/FR2F42100960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4ddcfe3efe3496e6a986d1e5c041adae2a14f28182e2a8b5f2053165f74e2f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR2F42100660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4ddcfe3efe3496e6a986d1e5c041adae2a14f28182e2a8b5f2053165f74e2f. 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/FR2F42100660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8422950d81d0e9dfd35c4d2a0e37d2eaa34adb4a250849ba8de375b1bb925d. 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/FR2F42100640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f0a725817dfdcfbea995ec8f9e36bc853444f52f3d1e46b8bd7b55ef90ee34. 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/FR2F42100480.