Joris Van Opstal
type: MusicGroup
popularity: 3
followers: 12
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x793c080f53b42524124e92d95769750353a84a066ac9e3d56ac492ccfd7f5b41
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f064563e-445d-42d8-9b56-ed57f456df2e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f064563e-445d-42d8-9b56-ed57f456df2e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f064563e-445d-42d8-9b56-ed57f456df2e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x793c080f53b42524124e92d95769750353a84a066ac9e3d56ac492ccfd7f5b41","name":"Joris Van Opstal","registered_at":"2026-06-21T12:32:11Z","symbol":"NIM1924461","token_address":"0xd3c2f9db7e4d4c5dcf6a12c5b755ba7b37e12ffc","type":"artist","uuid":"f064563e-445d-42d8-9b56-ed57f456df2e"}
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 0x793c080f53b42524124e92d95769750353a84a066ac9e3d56ac492ccfd7f5b41. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f064563e-445d-42d8-9b56-ed57f456df2e.json and https://artists.proofprofile.net/proofs/artist/f064563e-445d-42d8-9b56-ed57f456df2e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x793c080f53b42524124e92d95769750353a84a066ac9e3d56ac492ccfd7f5b41","name":"Joris Van Opstal","registered_at":"2026-06-21T12:32:11Z","symbol":"NIM1924461","token_address":"0xd3c2f9db7e4d4c5dcf6a12c5b755ba7b37e12ffc","type":"artist","uuid":"f064563e-445d-42d8-9b56-ed57f456df2e"}
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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