Jaap Donkers
type: MusicGroup
popularity: 15
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6116875e171c2cc6309696176b2ae1e40de73c6b13a52d0c9933ad88c969323e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953654
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953654
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/489e1849-e5a0-4870-817e-f1a34563c321.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/489e1849-e5a0-4870-817e-f1a34563c321.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/489e1849-e5a0-4870-817e-f1a34563c321
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:26:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6116875e171c2cc6309696176b2ae1e40de73c6b13a52d0c9933ad88c969323e","name":"Jaap Donkers","registered_at":"2026-06-14T12:04:33Z","symbol":"NIM0447321","token_address":"0xc5ec08600b5de76501e7b3974c6d4d72af0ffeca","type":"artist","uuid":"489e1849-e5a0-4870-817e-f1a34563c321"}
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 0x6116875e171c2cc6309696176b2ae1e40de73c6b13a52d0c9933ad88c969323e. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/489e1849-e5a0-4870-817e-f1a34563c321.json and https://artists.proofprofile.net/proofs/artist/489e1849-e5a0-4870-817e-f1a34563c321.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:26:51Z
  text: {"copyright_id":"0x6116875e171c2cc6309696176b2ae1e40de73c6b13a52d0c9933ad88c969323e","name":"Jaap Donkers","registered_at":"2026-06-14T12:04:33Z","symbol":"NIM0447321","token_address":"0xc5ec08600b5de76501e7b3974c6d4d72af0ffeca","type":"artist","uuid":"489e1849-e5a0-4870-817e-f1a34563c321"}