Mathis Levreau
type: MusicGroup
popularity: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcb7f995dc007dc86830b834d2ccbaabaf52409cc926aa4a08db00412cd8a3b84
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f4e26708-8923-4e80-a392-7498afbc2693.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f4e26708-8923-4e80-a392-7498afbc2693.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f4e26708-8923-4e80-a392-7498afbc2693
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcb7f995dc007dc86830b834d2ccbaabaf52409cc926aa4a08db00412cd8a3b84","name":"Mathis Levreau","registered_at":"2026-06-21T14:50:47Z","symbol":"NIM1951389","token_address":"0x16dd842e8c6ec8bada4f36e0cb5ecf2b3f13d5d6","type":"artist","uuid":"f4e26708-8923-4e80-a392-7498afbc2693"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7f995dc007dc86830b834d2ccbaabaf52409cc926aa4a08db00412cd8a3b84. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4e26708-8923-4e80-a392-7498afbc2693.json and https://artists.proofprofile.net/proofs/artist/f4e26708-8923-4e80-a392-7498afbc2693.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xcb7f995dc007dc86830b834d2ccbaabaf52409cc926aa4a08db00412cd8a3b84","name":"Mathis Levreau","registered_at":"2026-06-21T14:50:47Z","symbol":"NIM1951389","token_address":"0x16dd842e8c6ec8bada4f36e0cb5ecf2b3f13d5d6","type":"artist","uuid":"f4e26708-8923-4e80-a392-7498afbc2693"}
album: Aventure Chaotique
  type: MusicAlbum
  date published: 2024-11-18