Michel Massot
type: MusicGroup
genre: french jazz
genre: neoclassical
description: thumb|right|300px|Michel Massot in Brussels, Belgium in 2010. Michel Massot (born 25 October 1960, in Halle) is a Belgian tuba and trombone jazz musician. He studied at Conservatoire de Liège. He fo
popularity: 7
followers: 148
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2893d8304291c2954158212578ef9ccb49a1bb8a0a5568758d0c57ecc987ac9f
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/ec8abe8b-1a86-4cb0-a841-ee16db4fb6dc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ec8abe8b-1a86-4cb0-a841-ee16db4fb6dc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ec8abe8b-1a86-4cb0-a841-ee16db4fb6dc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2893d8304291c2954158212578ef9ccb49a1bb8a0a5568758d0c57ecc987ac9f","name":"Michel Massot","registered_at":"2026-06-21T10:59:33Z","symbol":"NIM1905349","token_address":"0x0ed02e5653864dc277470b8c6fee8ac01aea49c8","type":"artist","uuid":"ec8abe8b-1a86-4cb0-a841-ee16db4fb6dc"}
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 0x2893d8304291c2954158212578ef9ccb49a1bb8a0a5568758d0c57ecc987ac9f. 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/ec8abe8b-1a86-4cb0-a841-ee16db4fb6dc.json and https://artists.proofprofile.net/proofs/artist/ec8abe8b-1a86-4cb0-a841-ee16db4fb6dc.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x2893d8304291c2954158212578ef9ccb49a1bb8a0a5568758d0c57ecc987ac9f","name":"Michel Massot","registered_at":"2026-06-21T10:59:33Z","symbol":"NIM1905349","token_address":"0x0ed02e5653864dc277470b8c6fee8ac01aea49c8","type":"artist","uuid":"ec8abe8b-1a86-4cb0-a841-ee16db4fb6dc"}