1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb8627e68f2750135d80801075878438eb4b32e17c964cfef73bf1d4fc8a706dc. 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/ad1d751d-c3e3-4aa8-8816-eb812f0756cd.json and https://artists.proofprofile.net/proofs/artist/ad1d751d-c3e3-4aa8-8816-eb812f0756cd.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 → block OTSBitcoinBlock must exist at that height 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 0x3c1effa9377752349032e8ad65f1d5855b8e849956f08fc54786b449f03e0f1d. 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/FR2LY2400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4b102af54e096221e832dc919d14b8f99ff73464aabbc8db1185a952283b61. 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/FR2LY2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6748853d7fe562aa35e6cf798521567999ab41ad9cb6ffbc8e3ceeb0115045f. 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/FR2LY2400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd0ad33f78ffc577ab3bf249ad02fb079dc404010bbdb988ca86aff063dc7e7. 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/FR2LY2400010.
Je serai (ta meilleure amie) - Mimi's Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aff10e99af5451a06fcc2971b76460c84a6d25c8eb56e0fec88fa9d8a497053. 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/FR2LY2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e03c0b6ac7eea3cc0151005c212941f23fb1500f07fbd1ebd5027db74d86389. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/FR2LY2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166da93fa223968156bf41a5e55c5a5490f619275aa5d355cb34af30ee2e6b60. 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/FR2LY2300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8d164ffe1bfad22d246886bc7e8f6752c44d89612c7048434763685db8b5f1. 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/FR2LY2400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x727630804a806dd43a36a8dfd15c3981e54f4512cde2e7e7ba635c0d9b6c082f. 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/UKN6K2401104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53800a955b470180333846b4d8e18eada641b26dc187411b9065cd2601db4ce4. 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/UKN6K2401107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d62741c865b039821d417d728b195ab1800858db9ac31b85dfa2517b38409c. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBDLM2400186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb96a1fcc1ecb95db12f9880d7c3057bb39642a70c0249d1daa9d1227723638. 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/US38Y2419216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20577a2db9b63ce529732a0874b09477700801a602905342c650bd182e5b4118. 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/QM6MZ2433150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd347f95da4b71ee9c8cc22b7a1ed8c757c698902b837add17af15c5cc140a7d6. 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/US38Y2419359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d42f209b501b996ed546a4c6f13445667793ea755895e5f8fdfff3a13c4a98. 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/FR0ML2101330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8a07f1a43fcd35c67f5a48ba2150b9c601956fe216cd1a79edf5ad928f2bc1. 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/GB6LY1601753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fff67c542ad3b33e36aead4bcfe37ac4bee8efef35fc1ce5feea4152c9f181. 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/NL3M12406553.