Robert Viger
type: MusicGroup
popularity: 6
followers: 304
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4f4704285904c251dc387be8dcf7efd2a868b3e29d4389e21a5f7357f7d7d047
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953867
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953867
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/06a5706b-0531-4894-9d38-1a7b9b7d10c2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/06a5706b-0531-4894-9d38-1a7b9b7d10c2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/06a5706b-0531-4894-9d38-1a7b9b7d10c2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:09:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4f4704285904c251dc387be8dcf7efd2a868b3e29d4389e21a5f7357f7d7d047","name":"Robert Viger","registered_at":"2026-06-15T15:45:56Z","symbol":"NIM0755493","token_address":"0xb90b11d3825259911af52851fc9981827d235433","type":"artist","uuid":"06a5706b-0531-4894-9d38-1a7b9b7d10c2"}
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 0x4f4704285904c251dc387be8dcf7efd2a868b3e29d4389e21a5f7357f7d7d047. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06a5706b-0531-4894-9d38-1a7b9b7d10c2.json and https://artists.proofprofile.net/proofs/artist/06a5706b-0531-4894-9d38-1a7b9b7d10c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T01:09:47Z
  text: {"copyright_id":"0x4f4704285904c251dc387be8dcf7efd2a868b3e29d4389e21a5f7357f7d7d047","name":"Robert Viger","registered_at":"2026-06-15T15:45:56Z","symbol":"NIM0755493","token_address":"0xb90b11d3825259911af52851fc9981827d235433","type":"artist","uuid":"06a5706b-0531-4894-9d38-1a7b9b7d10c2"}
album: Labyrinth
  type: MusicAlbum
  date published: 2010-04-25
album: Old Jazz Comedies
  type: MusicAlbum
  date published: 2010-06-20
album: Romantic Movies
  type: MusicAlbum
  date published: 2017-11-03