Henk Smit
type: MusicGroup
popularity: 9
followers: 158
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x078767b122bc495fd895597fdcb99013a53d12467b0997820894f2294c92e0a1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/49a84492-e919-48e0-bdd2-cc3befb7dd40.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/49a84492-e919-48e0-bdd2-cc3befb7dd40.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/49a84492-e919-48e0-bdd2-cc3befb7dd40
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x078767b122bc495fd895597fdcb99013a53d12467b0997820894f2294c92e0a1","name":"Henk Smit","registered_at":"2026-06-16T15:12:42Z","symbol":"NIM1091251","token_address":"0x87814e41de4d1d5c1a899db6447cb5fe6db5a49f","type":"artist","uuid":"49a84492-e919-48e0-bdd2-cc3befb7dd40"}
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 0x078767b122bc495fd895597fdcb99013a53d12467b0997820894f2294c92e0a1. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49a84492-e919-48e0-bdd2-cc3befb7dd40.json and https://artists.proofprofile.net/proofs/artist/49a84492-e919-48e0-bdd2-cc3befb7dd40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x078767b122bc495fd895597fdcb99013a53d12467b0997820894f2294c92e0a1","name":"Henk Smit","registered_at":"2026-06-16T15:12:42Z","symbol":"NIM1091251","token_address":"0x87814e41de4d1d5c1a899db6447cb5fe6db5a49f","type":"artist","uuid":"49a84492-e919-48e0-bdd2-cc3befb7dd40"}
album: Waar Moet Ik Beginnen
  type: MusicAlbum
  date published: 2020-06-19
album: Waar Moet Ik Beginnen
  type: MusicAlbum
  date published: 2020-06-19
album: Toen Ik Jou Zag
  type: MusicAlbum
  date published: 2024-04-24
album: Ik Geef Me Over
  type: MusicAlbum
  date published: 2025-05-01