Jan Versluis
type: MusicGroup
popularity: 2
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6c075cd3c3643c7170f18b678a6fde5985dd7f9aaf1cc31efc0036c0715f4b3d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954019
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954019
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3681ff84-9881-4f27-bcde-d2c0d010ab5e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3681ff84-9881-4f27-bcde-d2c0d010ab5e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3681ff84-9881-4f27-bcde-d2c0d010ab5e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:44:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6c075cd3c3643c7170f18b678a6fde5985dd7f9aaf1cc31efc0036c0715f4b3d","name":"Jan Versluis","registered_at":"2026-06-16T08:30:53Z","symbol":"NIM0995385","token_address":"0xcae40a71f73004c509bbc6253f7e701ed29401a4","type":"artist","uuid":"3681ff84-9881-4f27-bcde-d2c0d010ab5e"}
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 0x6c075cd3c3643c7170f18b678a6fde5985dd7f9aaf1cc31efc0036c0715f4b3d. Chain 2 (Bitcoin): anchored in block 954019 (2026-06-16T23:44:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3681ff84-9881-4f27-bcde-d2c0d010ab5e.json and https://artists.proofprofile.net/proofs/artist/3681ff84-9881-4f27-bcde-d2c0d010ab5e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:44:13Z
  text: {"copyright_id":"0x6c075cd3c3643c7170f18b678a6fde5985dd7f9aaf1cc31efc0036c0715f4b3d","name":"Jan Versluis","registered_at":"2026-06-16T08:30:53Z","symbol":"NIM0995385","token_address":"0xcae40a71f73004c509bbc6253f7e701ed29401a4","type":"artist","uuid":"3681ff84-9881-4f27-bcde-d2c0d010ab5e"}
album: Morgenschemering
  type: MusicAlbum
  date published: 2018-02-01
album: De Avontuur
  type: MusicAlbum
  date published: 2019-07-08
album: Vasthouden & Loslaten
  type: MusicAlbum
  date published: 2020-09-01