Jacques Yvart
type: MusicGroup
popularity: 2
followers: 895
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x077a4d15321195e2170c8bdf74b18c24336b799af6c8d5efdfd97fd3484227e1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a23ace9e-c30d-4e71-b572-1c5c2d5a070d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a23ace9e-c30d-4e71-b572-1c5c2d5a070d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a23ace9e-c30d-4e71-b572-1c5c2d5a070d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x077a4d15321195e2170c8bdf74b18c24336b799af6c8d5efdfd97fd3484227e1","name":"Jacques Yvart","registered_at":"2026-06-20T06:15:30Z","symbol":"NIM1537502","token_address":"0xafa2a1c95f139eac5dfcac7b0a625a7b3cd1dd54","type":"artist","uuid":"a23ace9e-c30d-4e71-b572-1c5c2d5a070d"}
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 0x077a4d15321195e2170c8bdf74b18c24336b799af6c8d5efdfd97fd3484227e1. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a23ace9e-c30d-4e71-b572-1c5c2d5a070d.json and https://artists.proofprofile.net/proofs/artist/a23ace9e-c30d-4e71-b572-1c5c2d5a070d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x077a4d15321195e2170c8bdf74b18c24336b799af6c8d5efdfd97fd3484227e1","name":"Jacques Yvart","registered_at":"2026-06-20T06:15:30Z","symbol":"NIM1537502","token_address":"0xafa2a1c95f139eac5dfcac7b0a625a7b3cd1dd54","type":"artist","uuid":"a23ace9e-c30d-4e71-b572-1c5c2d5a070d"}
album: Jacques Yvart kantas Georges Brassens (Esperanto)
  type: MusicAlbum
  date published: 1998
album: Invito por vojago (Esperanto)
  type: MusicAlbum
  date published: 2008-02-15
album: Brassens plu (Brassens en Esperanto)
  type: MusicAlbum
  date published: 2011-04-23
album: Chanson française
  type: MusicAlbum
  date published: 2015-06-15
album: French troubadour
  type: MusicAlbum
  date published: 2023-03-03