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 0x6ba671187c221ea7e67493f661e186ee1ba4b569a2bb1a91bf6a6cfae67243e3. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77193d3b-fea5-47be-9571-09da38d3973f.json and https://artists.proofprofile.net/proofs/artist/77193d3b-fea5-47be-9571-09da38d3973f.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 0xea1c1b32bc9acbbea9c23c411572db356145ee16dc5f7d754c45705004067d27. 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/FR60Z1100840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2a1a0567ed69718fdd2d3e51721567b9abbd6f29430c35e5dc25fc02245d50. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR60Z1100910.
Des salves sonores s'élèvent du vivarium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786b3ccf42b67d5824969ba774db1e4e3ec59842697d1c39b4e4c320839ea0bf. 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/FR60Z1100960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2bb99384f1756b7f92a2e8c0d39febceed17404097994e0f11e40a8d251f152. 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/FR60Z1100970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa847260fd4b5f46c1c82bd652d2c882188ef4406e4c70da69035cf509ec123aa. 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/FR60Z1101000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943e05654ca2c00bb837281a1e9b5dae164239920c1cf81a0ba78c264d52dd1f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR60Z1101010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dd6e1291ee7217c258c2ed8884cfddf89b0140dbf7cc6aa55c9f5eb70ca71f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR60Z1101030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce95cc89e452d6195484aeb4d47ffdfdbf343235af0acb2959edff2be4ab3ad8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR60Z1101050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8394013f1bf1e6cb08eedd601bcdbbec719f95b90862ebf433d7faa171801c29. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/FR60Z1101060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce0555b9d2841d50caea737baffdfd5f392c7b307bf9d53b4f582d5f2d9f53d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR60Z1101080.
Le Carnaval des animaux: Marche royale du lion
Le Carnaval des animaux: VII. l'Aquarium
Départ à l'aube, sans tambour ni trompette
Jack pot, renard et autres chasseurs français