Justin Carder
type: MusicGroup
popularity: 3
followers: 196
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2b5934c0f8e046c7ca36d7b2522595aaf8735d90a575daf49b7c2a73e69e126d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7c005d2-0499-4b22-8fba-fb865f184fd0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7c005d2-0499-4b22-8fba-fb865f184fd0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b7c005d2-0499-4b22-8fba-fb865f184fd0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2b5934c0f8e046c7ca36d7b2522595aaf8735d90a575daf49b7c2a73e69e126d","name":"Justin Carder","registered_at":"2026-06-20T15:18:57Z","symbol":"NIM1642893","token_address":"0x51b7c438e89e2bc848784e7c34c2e9b2f6fd872a","type":"artist","uuid":"b7c005d2-0499-4b22-8fba-fb865f184fd0"}
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 0x2b5934c0f8e046c7ca36d7b2522595aaf8735d90a575daf49b7c2a73e69e126d. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7c005d2-0499-4b22-8fba-fb865f184fd0.json and https://artists.proofprofile.net/proofs/artist/b7c005d2-0499-4b22-8fba-fb865f184fd0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0x2b5934c0f8e046c7ca36d7b2522595aaf8735d90a575daf49b7c2a73e69e126d","name":"Justin Carder","registered_at":"2026-06-20T15:18:57Z","symbol":"NIM1642893","token_address":"0x51b7c438e89e2bc848784e7c34c2e9b2f6fd872a","type":"artist","uuid":"b7c005d2-0499-4b22-8fba-fb865f184fd0"}
album: The Wine and the Whiskey
  type: MusicAlbum
  date published: 2017-06-10