Robert Matt
type: MusicGroup
popularity: 12
followers: 98
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3bcba2626908cd259a63a16261d8342034a0066a7b097fcb5b8f40f265389db7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953778
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953778
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/baccb961-2d1a-42c3-b152-99a58ed2773d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/baccb961-2d1a-42c3-b152-99a58ed2773d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/baccb961-2d1a-42c3-b152-99a58ed2773d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:57:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3bcba2626908cd259a63a16261d8342034a0066a7b097fcb5b8f40f265389db7","name":"Robert Matt","registered_at":"2026-06-15T00:15:10Z","symbol":"NIM0621600","token_address":"0x432c9dee31f3b70144ff226cee8bec7208fa6a8f","type":"artist","uuid":"baccb961-2d1a-42c3-b152-99a58ed2773d"}
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 0x3bcba2626908cd259a63a16261d8342034a0066a7b097fcb5b8f40f265389db7. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/baccb961-2d1a-42c3-b152-99a58ed2773d.json and https://artists.proofprofile.net/proofs/artist/baccb961-2d1a-42c3-b152-99a58ed2773d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0x3bcba2626908cd259a63a16261d8342034a0066a7b097fcb5b8f40f265389db7","name":"Robert Matt","registered_at":"2026-06-15T00:15:10Z","symbol":"NIM0621600","token_address":"0x432c9dee31f3b70144ff226cee8bec7208fa6a8f","type":"artist","uuid":"baccb961-2d1a-42c3-b152-99a58ed2773d"}
album: Rico, Oskar und das Herzgebreche (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 2015-12-08