George Kooymans
type: MusicGroup
genre: krautrock
genre: nederpop
description: George Jan Kooymans (11 March 1948 – 22 July 2025) was a Dutch guitarist and vocalist. He was best known as the founder of the Dutch rock group Golden Earring. Kooymans wrote "Twilight Zone", the grou
popularity: 8
followers: 615
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x85a6bc5b3681891cc661551f19abe8c1286a323a8dcb2ecbd2a3d37f0632784e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953949
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953949
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/244684b0-0fdc-4554-90a7-bea362aa950c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/244684b0-0fdc-4554-90a7-bea362aa950c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/244684b0-0fdc-4554-90a7-bea362aa950c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:28:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x85a6bc5b3681891cc661551f19abe8c1286a323a8dcb2ecbd2a3d37f0632784e","name":"George Kooymans","registered_at":"2026-06-16T02:09:02Z","symbol":"NIM0904189","token_address":"0xeeb9e56f05c940606db4e2e7e859cef135f8f6d4","type":"artist","uuid":"244684b0-0fdc-4554-90a7-bea362aa950c"}
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 0x85a6bc5b3681891cc661551f19abe8c1286a323a8dcb2ecbd2a3d37f0632784e. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/244684b0-0fdc-4554-90a7-bea362aa950c.json and https://artists.proofprofile.net/proofs/artist/244684b0-0fdc-4554-90a7-bea362aa950c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x85a6bc5b3681891cc661551f19abe8c1286a323a8dcb2ecbd2a3d37f0632784e","name":"George Kooymans","registered_at":"2026-06-16T02:09:02Z","symbol":"NIM0904189","token_address":"0xeeb9e56f05c940606db4e2e7e859cef135f8f6d4","type":"artist","uuid":"244684b0-0fdc-4554-90a7-bea362aa950c"}
album: Lovin' And Hurtin' (Remastered)
  type: MusicAlbum
  date published: 1971-12-25
album: Jojo (Remastered From Original Tape)
  type: MusicAlbum
  date published: 1972-01-01
album: Solo
  type: MusicAlbum
  date published: 1987