Pierre Hetu
type: MusicGroup
popularity: 3
followers: 13
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x01ab8c881b0d99daf299166ff6f0afcf27c3d76c6c15ed19708fd8be90cc821e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a571f582-bc9c-4182-98fc-93316911ac85.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a571f582-bc9c-4182-98fc-93316911ac85.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a571f582-bc9c-4182-98fc-93316911ac85
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x01ab8c881b0d99daf299166ff6f0afcf27c3d76c6c15ed19708fd8be90cc821e","name":"Pierre Hetu","registered_at":"2026-06-20T07:00:45Z","symbol":"NIM1551167","token_address":"0xc3e9a85bfe686bd9bbf65214d52f6eebe913d3cb","type":"artist","uuid":"a571f582-bc9c-4182-98fc-93316911ac85"}
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ab8c881b0d99daf299166ff6f0afcf27c3d76c6c15ed19708fd8be90cc821e. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a571f582-bc9c-4182-98fc-93316911ac85.json and https://artists.proofprofile.net/proofs/artist/a571f582-bc9c-4182-98fc-93316911ac85.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x01ab8c881b0d99daf299166ff6f0afcf27c3d76c6c15ed19708fd8be90cc821e","name":"Pierre Hetu","registered_at":"2026-06-20T07:00:45Z","symbol":"NIM1551167","token_address":"0xc3e9a85bfe686bd9bbf65214d52f6eebe913d3cb","type":"artist","uuid":"a571f582-bc9c-4182-98fc-93316911ac85"}
album: Festival du Son et de L'Image 2003
  type: MusicAlbum
  date published: 2012-04-03
album: Festival du Son et de L'Image 2003
  type: MusicAlbum
  date published: 2012-04-03