Hérisson
type: MusicGroup
description: Hérisson (; ) is a town in the Allier department in central France. Population Notable people Henri Harpignies (28 June 1819 – 28 August 1916), 19th century painter of the Barbizon school who made
popularity: 7
followers: 13
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb43162900b89379f1b0f7e1601f6980aaef0386bca69f71f9cbf20887f52711d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31a39e23-46d6-48d0-a48e-dd8ca9ccb719.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31a39e23-46d6-48d0-a48e-dd8ca9ccb719.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/31a39e23-46d6-48d0-a48e-dd8ca9ccb719
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb43162900b89379f1b0f7e1601f6980aaef0386bca69f71f9cbf20887f52711d","name":"Hérisson","registered_at":"2026-06-16T06:52:11Z","symbol":"NIM0971816","token_address":"0xedf06bef8a0cd4acad907ce0ae85a4828298a7c4","type":"artist","uuid":"31a39e23-46d6-48d0-a48e-dd8ca9ccb719"}
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 0xb43162900b89379f1b0f7e1601f6980aaef0386bca69f71f9cbf20887f52711d. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31a39e23-46d6-48d0-a48e-dd8ca9ccb719.json and https://artists.proofprofile.net/proofs/artist/31a39e23-46d6-48d0-a48e-dd8ca9ccb719.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xb43162900b89379f1b0f7e1601f6980aaef0386bca69f71f9cbf20887f52711d","name":"Hérisson","registered_at":"2026-06-16T06:52:11Z","symbol":"NIM0971816","token_address":"0xedf06bef8a0cd4acad907ce0ae85a4828298a7c4","type":"artist","uuid":"31a39e23-46d6-48d0-a48e-dd8ca9ccb719"}