Delphine Bardin
type: MusicGroup
genre: classical piano
description: 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
popularity: 4
followers: 52
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x31e2fa1d8f3d8982e349052d0d1d4fb3c4704fc2cb08ae31bc0eaa9054d57550
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4a0005c5-f404-40d9-894f-85fa09107bc1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4a0005c5-f404-40d9-894f-85fa09107bc1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4a0005c5-f404-40d9-894f-85fa09107bc1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x31e2fa1d8f3d8982e349052d0d1d4fb3c4704fc2cb08ae31bc0eaa9054d57550","name":"Delphine Bardin","registered_at":"2026-06-16T15:20:08Z","symbol":"NIM1093025","token_address":"0xa952d72b60588fbb616b35042b6f2d725550b350","type":"artist","uuid":"4a0005c5-f404-40d9-894f-85fa09107bc1"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: 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).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x31e2fa1d8f3d8982e349052d0d1d4fb3c4704fc2cb08ae31bc0eaa9054d57550","name":"Delphine Bardin","registered_at":"2026-06-16T15:20:08Z","symbol":"NIM1093025","token_address":"0xa952d72b60588fbb616b35042b6f2d725550b350","type":"artist","uuid":"4a0005c5-f404-40d9-894f-85fa09107bc1"}
album: Cabinet de curiosités (Chabrier Séverac)
  type: MusicAlbum
  date published: 2024-09-05