Arnon Grunberg
type: MusicGroup
description: Arnon Yasha Yves Grünberg (; born 22 February 1971) is a Dutch writer of novels, essays, and columns, as well as a journalist. He published some of his work under the heteronym Marek van der Jagt. He
popularity: 17
followers: 101
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x076e0ce25c78c8476b44b16eaad2f5aa9c1533c2bbb1003c53e84514d6b05d56
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953741
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953741
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a046bcfc-e193-4a8c-a2e9-0013dc8cd1e9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a046bcfc-e193-4a8c-a2e9-0013dc8cd1e9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a046bcfc-e193-4a8c-a2e9-0013dc8cd1e9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:44:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x076e0ce25c78c8476b44b16eaad2f5aa9c1533c2bbb1003c53e84514d6b05d56","name":"Arnon Grunberg","registered_at":"2026-06-14T21:15:12Z","symbol":"NIM0578637","token_address":"0x43a4b1126d1e8bf9c97ca95ebd5d0d95cc411fed","type":"artist","uuid":"a046bcfc-e193-4a8c-a2e9-0013dc8cd1e9"}
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 0x076e0ce25c78c8476b44b16eaad2f5aa9c1533c2bbb1003c53e84514d6b05d56. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a046bcfc-e193-4a8c-a2e9-0013dc8cd1e9.json and https://artists.proofprofile.net/proofs/artist/a046bcfc-e193-4a8c-a2e9-0013dc8cd1e9.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T04:44:49Z
  text: {"copyright_id":"0x076e0ce25c78c8476b44b16eaad2f5aa9c1533c2bbb1003c53e84514d6b05d56","name":"Arnon Grunberg","registered_at":"2026-06-14T21:15:12Z","symbol":"NIM0578637","token_address":"0x43a4b1126d1e8bf9c97ca95ebd5d0d95cc411fed","type":"artist","uuid":"a046bcfc-e193-4a8c-a2e9-0013dc8cd1e9"}
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