Delphine Bardin (born 18 July 1974) is a French classical pianist.Biographie Biography Born in Tours, Delphine Bardin began playing the piano at the age of five. She then studied with Paule GrimaldiP
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 0x31e2fa1d8f3d8982e349052d0d1d4fb3c4704fc2cb08ae31bc0eaa9054d57550. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a0005c5-f404-40d9-894f-85fa09107bc1.json and https://artists.proofprofile.net/proofs/artist/4a0005c5-f404-40d9-894f-85fa09107bc1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cabinet de curiosités (Chabrier Séverac)