Demetrius Masson
type: MusicGroup
popularity: 12
followers: 76
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfeb9fc4f4b1e38a806eefa4cc16352c2d629d92496f579bbd2756369c3e508c5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953750
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953750
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a9c49f21-1fb5-497d-84fa-ce78c2c84d62.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a9c49f21-1fb5-497d-84fa-ce78c2c84d62.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a9c49f21-1fb5-497d-84fa-ce78c2c84d62
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:12:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfeb9fc4f4b1e38a806eefa4cc16352c2d629d92496f579bbd2756369c3e508c5","name":"Demetrius Masson","registered_at":"2026-06-14T22:25:33Z","symbol":"NIM0595433","token_address":"0xc2aa9b88a4c9f2502148d1b7c92b49119de7fe9a","type":"artist","uuid":"a9c49f21-1fb5-497d-84fa-ce78c2c84d62"}
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 0xfeb9fc4f4b1e38a806eefa4cc16352c2d629d92496f579bbd2756369c3e508c5. 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/a9c49f21-1fb5-497d-84fa-ce78c2c84d62.json and https://artists.proofprofile.net/proofs/artist/a9c49f21-1fb5-497d-84fa-ce78c2c84d62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:50:11Z
  text: {"copyright_id":"0xfeb9fc4f4b1e38a806eefa4cc16352c2d629d92496f579bbd2756369c3e508c5","name":"Demetrius Masson","registered_at":"2026-06-14T22:25:33Z","symbol":"NIM0595433","token_address":"0xc2aa9b88a4c9f2502148d1b7c92b49119de7fe9a","type":"artist","uuid":"a9c49f21-1fb5-497d-84fa-ce78c2c84d62"}
album: Seul Dans Le Bruit
  type: MusicAlbum
  date published: 2024-09-20