Barry van Vliet
type: MusicGroup
popularity: 5
followers: 482
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x914d8254f1f16a43fb937303782270be88c422814baeecb92c034a6fd2b1c1c2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954004
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954004
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31e0eae5-049b-4174-811b-3dcfaf54cbcd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31e0eae5-049b-4174-811b-3dcfaf54cbcd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/31e0eae5-049b-4174-811b-3dcfaf54cbcd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T21:01:04Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x914d8254f1f16a43fb937303782270be88c422814baeecb92c034a6fd2b1c1c2","name":"Barry van Vliet","registered_at":"2026-06-16T07:14:41Z","symbol":"NIM0977193","token_address":"0x8817936246451af231d208c798a827f17ab3ca09","type":"artist","uuid":"31e0eae5-049b-4174-811b-3dcfaf54cbcd"}
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 0x914d8254f1f16a43fb937303782270be88c422814baeecb92c034a6fd2b1c1c2. Chain 2 (Bitcoin): anchored in block 954004 (2026-06-16T21:01:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31e0eae5-049b-4174-811b-3dcfaf54cbcd.json and https://artists.proofprofile.net/proofs/artist/31e0eae5-049b-4174-811b-3dcfaf54cbcd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T21:01:04Z
  text: {"copyright_id":"0x914d8254f1f16a43fb937303782270be88c422814baeecb92c034a6fd2b1c1c2","name":"Barry van Vliet","registered_at":"2026-06-16T07:14:41Z","symbol":"NIM0977193","token_address":"0x8817936246451af231d208c798a827f17ab3ca09","type":"artist","uuid":"31e0eae5-049b-4174-811b-3dcfaf54cbcd"}
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