Jacques Demy (; 5 June 1931 – 27 October 1990) was a French director, screenwriter and lyricist. He appeared at the height of the French New Wave alongside contemporaries like Jean-Luc Godard and Fran
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 0x8d3d5dc879077f9d8dd1dcd3922e5fd9b6588c43848e3b4b61066872e8058493. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0440349c-8a07-40b3-a56e-133505162812.json and https://artists.proofprofile.net/proofs/artist/0440349c-8a07-40b3-a56e-133505162812.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Will Wait For You (From "Les Parapluies de Cherbourg")
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 0xc5c2c090b47931542535ececd68ec9a8f92af796b0a4cc08ef441b9f8acaf55b. 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/USSM19602694.
Legrand: Chanson de Delphine à Lancien (from the movie Les Demoiselles de Rochefort)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762ad9d5b39be5fe5ac26226253911ac7fd471354658546b9f0f4cde529f1f25. 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/GBAYC1302302.
Legrand: Nous sommes des soeurs jumelles (from the movie Les Demoiselles de Rochefort)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233b4d672161a85c59b233ce3847f8ffa03bbc129afb5f0774eef37d22ba828e. 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/GBAYC1302316.
Legrand: Conseil de la Fée Lilas (from the movie Peau d'Âne)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c789870a9c8e82d747f3514f4b550bcd37f8e43d464d09acc3c77e95969c9ce. 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/GBAYC1302310.
Legrand: Duo de Guy et Geneviève (from the movie Les Parapluies de Cherbourg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cac11be2be2ccdc80ed6cbf75b4808537a5c7047abdea8d7fa0cfa60918dfb9. 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/GBAYC1302311.
Encore! More Of The Concert Sound Of Henry Mancini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada1860be209544e70fc3c0e4bbde57faffbf72c4d2ae4c30926acfa969ebea2. 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/USRC11701549.