Yvan Le Bolloc'h
type: MusicGroup
description: Yvan Le Bolloc'h (; born 20 December 1961) is a French television and radio host, actor and musician. Biography Yvan Le Bolloc'h began as a teacher for four years in Brittany. He worked regularly wit
popularity: 4
followers: 499
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x11ebef6b90bf0f73a21746df775a58a406a9b2748272df107a71f873f0bca0b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dface780-7290-4ada-9489-4fbb39dc375a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dface780-7290-4ada-9489-4fbb39dc375a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dface780-7290-4ada-9489-4fbb39dc375a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x11ebef6b90bf0f73a21746df775a58a406a9b2748272df107a71f873f0bca0b7","name":"Yvan Le Bolloc'h","registered_at":"2026-06-21T06:09:15Z","symbol":"NIM1843798","token_address":"0xd15ee222c1f1ba57872fcb642b5b949dd270ee87","type":"artist","uuid":"dface780-7290-4ada-9489-4fbb39dc375a"}
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 0x11ebef6b90bf0f73a21746df775a58a406a9b2748272df107a71f873f0bca0b7. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dface780-7290-4ada-9489-4fbb39dc375a.json and https://artists.proofprofile.net/proofs/artist/dface780-7290-4ada-9489-4fbb39dc375a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x11ebef6b90bf0f73a21746df775a58a406a9b2748272df107a71f873f0bca0b7","name":"Yvan Le Bolloc'h","registered_at":"2026-06-21T06:09:15Z","symbol":"NIM1843798","token_address":"0xd15ee222c1f1ba57872fcb642b5b949dd270ee87","type":"artist","uuid":"dface780-7290-4ada-9489-4fbb39dc375a"}
album: Fiers & susceptibles
  type: MusicAlbum
  date published: 2009-04-13
album: La Manoucherie Royale
  type: MusicAlbum
  date published: 2013-11-04
album: La manoucherie royale
  type: MusicAlbum
  date published: 2013-11-21