Duo Fortin-Poirier
type: MusicGroup
popularity: 4
followers: 199
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf1c70d9278748cb867b8fd05ab4c63e0b44f7fb52f99eab8ccf0bb4c483f2dae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ed5d69cb-0db4-4ed4-9417-b221bb435caa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ed5d69cb-0db4-4ed4-9417-b221bb435caa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ed5d69cb-0db4-4ed4-9417-b221bb435caa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf1c70d9278748cb867b8fd05ab4c63e0b44f7fb52f99eab8ccf0bb4c483f2dae","name":"Duo Fortin-Poirier","registered_at":"2026-06-21T11:34:49Z","symbol":"NIM1913533","token_address":"0x033765ad3db8705a3c6538f7f3ac2b4c410a5d81","type":"artist","uuid":"ed5d69cb-0db4-4ed4-9417-b221bb435caa"}
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 0xf1c70d9278748cb867b8fd05ab4c63e0b44f7fb52f99eab8ccf0bb4c483f2dae. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed5d69cb-0db4-4ed4-9417-b221bb435caa.json and https://artists.proofprofile.net/proofs/artist/ed5d69cb-0db4-4ed4-9417-b221bb435caa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0xf1c70d9278748cb867b8fd05ab4c63e0b44f7fb52f99eab8ccf0bb4c483f2dae","name":"Duo Fortin-Poirier","registered_at":"2026-06-21T11:34:49Z","symbol":"NIM1913533","token_address":"0x033765ad3db8705a3c6538f7f3ac2b4c410a5d81","type":"artist","uuid":"ed5d69cb-0db4-4ed4-9417-b221bb435caa"}
album: Vingt doigts et un piano
  type: MusicAlbum
  date published: 2013-12-08
album: Mémoires
  type: MusicAlbum
  date published: 2017-12-07
album: Fantasy for 2 pianos in A minor, op. posth.
  type: MusicAlbum
  date published: 2022-02-11
album: Nuit blanche
  type: MusicAlbum
  date published: 2022-09-16
album: Tico-Tico
  type: MusicAlbum
  date published: 2023-05-26