Jean-Pierre Guignon
type: MusicGroup
description: thumb|upright| Jean-Pierre Guignon, né Giovanni Pietro Ghignone (10 February 1702 – 30 January 1774) was an 18th-century Franco-Italian composer and violinist. Life Born in Turin, Guignon was the
popularity: 4
followers: 208
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x79d2a9cf9b54b9c2b8cf47d33240f98c3ee7a40e82bffc8d664aca9d513f119d
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/28648df6-7fa8-452c-aef9-87e0f7adb3b5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/28648df6-7fa8-452c-aef9-87e0f7adb3b5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/28648df6-7fa8-452c-aef9-87e0f7adb3b5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x79d2a9cf9b54b9c2b8cf47d33240f98c3ee7a40e82bffc8d664aca9d513f119d","name":"Jean-Pierre Guignon","registered_at":"2026-06-16T03:40:16Z","symbol":"NIM0925971","token_address":"0xef9245a1eddaf4c9b74bf1f42cec324ded1e53a5","type":"artist","uuid":"28648df6-7fa8-452c-aef9-87e0f7adb3b5"}
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 0x79d2a9cf9b54b9c2b8cf47d33240f98c3ee7a40e82bffc8d664aca9d513f119d. 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/28648df6-7fa8-452c-aef9-87e0f7adb3b5.json and https://artists.proofprofile.net/proofs/artist/28648df6-7fa8-452c-aef9-87e0f7adb3b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x79d2a9cf9b54b9c2b8cf47d33240f98c3ee7a40e82bffc8d664aca9d513f119d","name":"Jean-Pierre Guignon","registered_at":"2026-06-16T03:40:16Z","symbol":"NIM0925971","token_address":"0xef9245a1eddaf4c9b74bf1f42cec324ded1e53a5","type":"artist","uuid":"28648df6-7fa8-452c-aef9-87e0f7adb3b5"}
album: Guignon: La Folia
  type: MusicAlbum
  date published: 2023-12-15
album: Jean-Pierre Guignon: Sonata in C Minor for Violin and Continuo, Op. 1 No. 9: I. Andante
  type: MusicAlbum
  date published: 2024-04-12
album: Jean-Pierre Guignon: Sonata No. 2, Op. 3
  type: MusicAlbum
  date published: 2024-10-30