Laurent Boutonnat (born 14 June 1961) is a French film score composer and music video director, best known as the songwriting partner of Mylène Farmer and the director of several music videos. Caree
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 0x38dd3365f8afee7c7a023ee8a187530ad3014bb0439aed4752116ffe100d4534. 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/b0e011ee-22f1-4e16-82c2-2ca9fb7ff2cc.json and https://artists.proofprofile.net/proofs/artist/b0e011ee-22f1-4e16-82c2-2ca9fb7ff2cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jacquou le Croquant (Original Motion Picture Soundtrack) [Deluxe Version]
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 0x3ec6b442490ed2bf1b7c75a9b42abac0263d7942a9112aa2dcb3b366879b468c. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/FRR910600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e1eac31b030d7f05cdc71bf675d81aaa1099a6d542f0c4238dd9d53419f55f. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/FRR910600090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8914d0b4a9c9545f3ff31399efce0aad7e39f6303e26b7227f5bc3175622ad. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/FRR910600110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b9d03c7f2e0332cb3e038b7ddc974b3b2fcc6906e82e7050a020788a3b625c. 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/FRR910600210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b9b745e32d168dcca922bba66b6fc77e83d886f51f867f96122b86836ee18d. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/FRR910600470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0ec2b4a2145a8ced95cefaccaea5edb8fd795609af60dd723bc1cbc075d0fd. 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/FRY539680040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e399532c17cde2748453de65292c3ebd59fdafde58dd1ab8ac1d2a1530fc79. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FRY539580220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1a2ef9ef84b9f0f8d219a4084a89c4116a4132ebf636e64401998967689282. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FRY539580240.