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 0x379d806a6bfc58d009d4960e4551e132a866439d3562c78a51241149abafa045. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/472c3cd8-7eb3-490f-8c2a-180ace0b846f.json and https://artists.proofprofile.net/proofs/artist/472c3cd8-7eb3-490f-8c2a-180ace0b846f.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 0x44bbed919325ee910ce87b995829da08270e9376ef132a705eb9a242213db158. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:48:41Z), 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/FRR641200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cfa18ac407b767f1e66c246bbe1fda0b4660c31bbe6819dd8bdc711b398d7f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FRR641200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044eededcbdd461e2213e487200988a96ced8d93cb441f01fe412ad7be70d139. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRR641200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d541844e1afe238b4d78b5ed7208930287f58992d349bd3c9d949f3193d14a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FRR641200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4fadea96baf0a991545fd5b7f92eef049eb153f1e91e315f81cefef08544fb. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRR641200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458e9c2a43bf6e53a00931962b82f4214126fa71976803d78ec4025ace13b4a7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FRR641200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ecf99d23478d5145696e2c6ecaa17e4d2d6424d1ee351898325652fcc47158. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRPFO1700020.
Brexit - Franz Scala Italian Dance Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463ded0b0d37b93f3ce8dfab4be801c0a769064a434ba9255df3fae39d608b86. 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/FRP622101020.
Nejma (Ouverture - Extrait de la bande originale du film "Animale")
Tirer la nuit sur les étoiles - Yan Wagner's Radio Remix
Tirer la nuit sur les étoiles - Only For You (Deluxe Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7ccd2ae16db8080e00b6bee0dbad7c17c61c9e2afd8e1bfe84773371ca9f92. 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/FRUM72301470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188546118360d9d1dcc8e7d5d119d675fc79eada44c9810a44ce38c29eaa1aa8. 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/FRP622100260.
Le gouffre (Yan Wagner Belgian Trip) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d419bab37d94203e42f297a4a8840985a02e079771517a025bb290533a1f07b. 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/FRPI61500830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bf57375ce22646b0de9ce76bd5672edaa3931e74bcaefffac6d2dac010f8e6. 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/FR7KL2000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62df83f05b069f3cb45b8aeb840f40442cb1e809cde9ad33f6426a8de1b4d1c7. 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/FR0ML1700500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7805f6652babe556800cb3810b2b8480f85c5541f237941d7ff9a34c70c531. 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/FR0ML1500130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca945ba05c73154b028d29617559cc10cd427657bf0bc4a419abb84ea2cfc27. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBKQU1907978.
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 0xa54d156550954a7e4921e48f8a8de9c7e5306fae9e2a3c93500bee5bc5f9fe4c. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/FRU701000264.