Frédéric Sanchez (born 23 September 1966) is a French sound artist and music producer, best known for his career in the fashion industry. His works include sound collages, mixes, original compositions
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 0x4d8dd3f2f62651f4561163ab1bbc5f9c1cccb82a46862c20d330d3ba37759228. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/306fc3c4-8d0e-45d5-b546-dc9f808ca2ad.json and https://artists.proofprofile.net/proofs/artist/306fc3c4-8d0e-45d5-b546-dc9f808ca2ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Prada Spring / Summer 2019 Men’s Campaign: Double Exposure (Soundtrack 2)
Prada Spring / Summer 2019 Men’s Campaign: Double Exposure (Soundtrack 1)
Prada Spring / Summer 2019 Women’s Campaign: Double Exposure (Sidonie)
Prada Spring / Summer 2019 Women’s Campaign: Double Exposure (Sybille)
Prada Spring / Summer 2019 Women’s Campaign: Double Exposure (Odette)
Prada Spring / Summer 2019 Women’s Campaign: Double Exposure (Margit)
Prada Spring / Summer 2019 Women’s Campaign: Double Exposure (Belle)
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 0x7d2858904a50f75e86c3e45f6d109bd1179ee9d332544f40496319a6f14abac7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAEB1963310.
Anatomy of Romance - Prada Fall / Winter 2019 Campaign