Dennis Kroon
type: MusicGroup
genre: nederpop
popularity: 4
followers: 278
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c78bfa2d23d2afc25b539e2c39d3ecc795c9342b3774cb511953b3e1155fa33
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954174
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954174
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7df14b89-3c30-4fb1-b16a-1cff24ebbd62.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7df14b89-3c30-4fb1-b16a-1cff24ebbd62.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7df14b89-3c30-4fb1-b16a-1cff24ebbd62
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-18T03:01:36Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4c78bfa2d23d2afc25b539e2c39d3ecc795c9342b3774cb511953b3e1155fa33","name":"Dennis Kroon","registered_at":"2026-06-17T09:24:11Z","symbol":"NIM1351634","token_address":"0x2ba152871d324e734d11c9f07e7d843a5e1f89d0","type":"artist","uuid":"7df14b89-3c30-4fb1-b16a-1cff24ebbd62"}
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 0x4c78bfa2d23d2afc25b539e2c39d3ecc795c9342b3774cb511953b3e1155fa33. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7df14b89-3c30-4fb1-b16a-1cff24ebbd62.json and https://artists.proofprofile.net/proofs/artist/7df14b89-3c30-4fb1-b16a-1cff24ebbd62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-18T03:01:36Z
  text: {"copyright_id":"0x4c78bfa2d23d2afc25b539e2c39d3ecc795c9342b3774cb511953b3e1155fa33","name":"Dennis Kroon","registered_at":"2026-06-17T09:24:11Z","symbol":"NIM1351634","token_address":"0x2ba152871d324e734d11c9f07e7d843a5e1f89d0","type":"artist","uuid":"7df14b89-3c30-4fb1-b16a-1cff24ebbd62"}
album: Hello (From The Voice Of Holland 5)
  type: MusicAlbum
  date published: 2014-09-13
album: Hello
  type: MusicAlbum
  date published: 2014-09-13
album: Ordinary Love
  type: MusicAlbum
  date published: 2014-10-25
album: Ordinary Love (From The Voice Of Holland 5)
  type: MusicAlbum
  date published: 2014-10-25
album: Clash 6 (From The Voice Of Holland 5)
  type: MusicAlbum
  date published: 2014-11-22
album: Clash 6
  type: MusicAlbum
  date published: 2014-11-22
album: In De Schaduw
  type: MusicAlbum
  date published: 2014-11-29
album: In De Schaduw (From The Voice Of Holland 5)
  type: MusicAlbum
  date published: 2014-11-29
album: Guiding Light
  type: MusicAlbum
  date published: 2016-06-04
album: Weet Je Niet (Liedje Zoekt Artiest)
  type: MusicAlbum
  date published: 2021-04-23