Matthijs Kieboom
type: MusicGroup
popularity: 6
followers: 364
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeec38f79b906722e60f31577a14abd2fb12157136dddf74e9240e704e3a16060
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8c6f0e70-9f2f-4faa-a8b6-dafd2894cd60.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8c6f0e70-9f2f-4faa-a8b6-dafd2894cd60.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8c6f0e70-9f2f-4faa-a8b6-dafd2894cd60
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeec38f79b906722e60f31577a14abd2fb12157136dddf74e9240e704e3a16060","name":"Matthijs Kieboom","registered_at":"2026-06-17T15:01:23Z","symbol":"NIM1431987","token_address":"0xbe1502cfbd36ec872ea9837aef656437fa7dc44c","type":"artist","uuid":"8c6f0e70-9f2f-4faa-a8b6-dafd2894cd60"}
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 0xeec38f79b906722e60f31577a14abd2fb12157136dddf74e9240e704e3a16060. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8c6f0e70-9f2f-4faa-a8b6-dafd2894cd60.json and https://artists.proofprofile.net/proofs/artist/8c6f0e70-9f2f-4faa-a8b6-dafd2894cd60.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xeec38f79b906722e60f31577a14abd2fb12157136dddf74e9240e704e3a16060","name":"Matthijs Kieboom","registered_at":"2026-06-17T15:01:23Z","symbol":"NIM1431987","token_address":"0xbe1502cfbd36ec872ea9837aef656437fa7dc44c","type":"artist","uuid":"8c6f0e70-9f2f-4faa-a8b6-dafd2894cd60"}
album: Van Der Valk: Series Two (Music from the Original Tv Series)
  type: MusicAlbum
  date published: 2022-10-28
album: Wolf (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 2022-09-13
album: Ninjas Down the Street (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 2022-04-20
album: Everything of Value (Original Television Soundtrack)
  type: MusicAlbum
  date published: 2021-10-01
album: Pirates Down the Street (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 2020-06-26
album: Van Der Valk: Series One (Music from the Original TV Series)
  type: MusicAlbum
  date published: 2020-04-26
album: Bloody Marie (Original Motion Picture Soundtrack
  type: MusicAlbum
  date published: 2019-02-22
album: Wild (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 2018-03-16
album: Taal is zeg maar echt mijn ding
  type: MusicAlbum
  date published: 2018-01-18
album: Alles Voor Elkaar
  type: MusicAlbum
  date published: 2017-10-12
album: Dummie de Mummie en de Tombe van Achnetoet
  type: MusicAlbum
  date published: 2017-10-04
album: The Cloudmaker (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 2021-05-14