Matthieu Charmant
type: MusicGroup
popularity: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9ea658e9f934ce22f4909f0526ca0b5c20b8f7d9050eca0c7b1acef17385040
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953741
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953741
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9a0fcf8f-d91a-4cf6-bce5-ce67ec687ccd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9a0fcf8f-d91a-4cf6-bce5-ce67ec687ccd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9a0fcf8f-d91a-4cf6-bce5-ce67ec687ccd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:44:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc9ea658e9f934ce22f4909f0526ca0b5c20b8f7d9050eca0c7b1acef17385040","name":"Matthieu Charmant","registered_at":"2026-06-14T20:41:39Z","symbol":"NIM0570636","token_address":"0xea3db71b3d19cb40e8b5c2aeb3e7b32ef16d3d9c","type":"artist","uuid":"9a0fcf8f-d91a-4cf6-bce5-ce67ec687ccd"}
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 0xc9ea658e9f934ce22f4909f0526ca0b5c20b8f7d9050eca0c7b1acef17385040. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a0fcf8f-d91a-4cf6-bce5-ce67ec687ccd.json and https://artists.proofprofile.net/proofs/artist/9a0fcf8f-d91a-4cf6-bce5-ce67ec687ccd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:50:11Z
  text: {"copyright_id":"0xc9ea658e9f934ce22f4909f0526ca0b5c20b8f7d9050eca0c7b1acef17385040","name":"Matthieu Charmant","registered_at":"2026-06-14T20:41:39Z","symbol":"NIM0570636","token_address":"0xea3db71b3d19cb40e8b5c2aeb3e7b32ef16d3d9c","type":"artist","uuid":"9a0fcf8f-d91a-4cf6-bce5-ce67ec687ccd"}
album: La Pulsation
  type: MusicAlbum
  date published: 2024-11-19