Joost Zoeteman
type: MusicGroup
popularity: 16
followers: 139
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa7c1bf3456e1564d2eb9654b1da04e3e9c165723335d560d91a8310dd603886e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953727
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953727
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/90aa5a48-293c-4360-b56a-defea88a1529.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/90aa5a48-293c-4360-b56a-defea88a1529.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/90aa5a48-293c-4360-b56a-defea88a1529
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T02:33:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa7c1bf3456e1564d2eb9654b1da04e3e9c165723335d560d91a8310dd603886e","name":"Joost Zoeteman","registered_at":"2026-06-14T19:42:58Z","symbol":"NIM0556625","token_address":"0x81d6e682b47476233d92c9e0449fd779e67d7795","type":"artist","uuid":"90aa5a48-293c-4360-b56a-defea88a1529"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c1bf3456e1564d2eb9654b1da04e3e9c165723335d560d91a8310dd603886e. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90aa5a48-293c-4360-b56a-defea88a1529.json and https://artists.proofprofile.net/proofs/artist/90aa5a48-293c-4360-b56a-defea88a1529.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0xa7c1bf3456e1564d2eb9654b1da04e3e9c165723335d560d91a8310dd603886e","name":"Joost Zoeteman","registered_at":"2026-06-14T19:42:58Z","symbol":"NIM0556625","token_address":"0x81d6e682b47476233d92c9e0449fd779e67d7795","type":"artist","uuid":"90aa5a48-293c-4360-b56a-defea88a1529"}
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