Thomas Vasseur
type: MusicGroup
popularity: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb403cb14fb423b49111b4c357000aa7b34dded95d1c020e3f480e5d6100a317b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953786
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953786
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d7301726-9074-438e-8d90-b04ab2b2090a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d7301726-9074-438e-8d90-b04ab2b2090a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d7301726-9074-438e-8d90-b04ab2b2090a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T12:56:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb403cb14fb423b49111b4c357000aa7b34dded95d1c020e3f480e5d6100a317b","name":"Thomas Vasseur","registered_at":"2026-06-15T03:09:04Z","symbol":"NIM0663157","token_address":"0xcfc2944d06b16eefee102c27ac322e2970e61e47","type":"artist","uuid":"d7301726-9074-438e-8d90-b04ab2b2090a"}
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 0xb403cb14fb423b49111b4c357000aa7b34dded95d1c020e3f480e5d6100a317b. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d7301726-9074-438e-8d90-b04ab2b2090a.json and https://artists.proofprofile.net/proofs/artist/d7301726-9074-438e-8d90-b04ab2b2090a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T12:56:12Z
  text: {"copyright_id":"0xb403cb14fb423b49111b4c357000aa7b34dded95d1c020e3f480e5d6100a317b","name":"Thomas Vasseur","registered_at":"2026-06-15T03:09:04Z","symbol":"NIM0663157","token_address":"0xcfc2944d06b16eefee102c27ac322e2970e61e47","type":"artist","uuid":"d7301726-9074-438e-8d90-b04ab2b2090a"}
album: A la Recherche de la Verite
  type: MusicAlbum
  date published: 2025-02-05