Jet Boeke
type: MusicGroup
genre: children's music
description: thumb|Boeke in 2014 Jet Boeke (born October 28, 1948, Wageningen) is a Dutch children's author and illustrator. She is a contributor to the Dutch version of Sesame Street, and is famous worldwide for
popularity: 52
followers: 4393
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa63723374ea16b6b159b242e20961355b312229f39694fe093ef5b58351f2a0a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8bca0624-0579-49c3-9b6c-cd5e00579f7d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8bca0624-0579-49c3-9b6c-cd5e00579f7d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8bca0624-0579-49c3-9b6c-cd5e00579f7d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa63723374ea16b6b159b242e20961355b312229f39694fe093ef5b58351f2a0a","name":"Jet Boeke","registered_at":"2026-06-12T03:58:35Z","symbol":"NIM0180023","token_address":"0x843b0fb8882441878ae95dc3e4d5fc87d8ce2772","type":"artist","uuid":"8bca0624-0579-49c3-9b6c-cd5e00579f7d"}
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 0xa63723374ea16b6b159b242e20961355b312229f39694fe093ef5b58351f2a0a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8bca0624-0579-49c3-9b6c-cd5e00579f7d.json and https://artists.proofprofile.net/proofs/artist/8bca0624-0579-49c3-9b6c-cd5e00579f7d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xa63723374ea16b6b159b242e20961355b312229f39694fe093ef5b58351f2a0a","name":"Jet Boeke","registered_at":"2026-06-12T03:58:35Z","symbol":"NIM0180023","token_address":"0x843b0fb8882441878ae95dc3e4d5fc87d8ce2772","type":"artist","uuid":"8bca0624-0579-49c3-9b6c-cd5e00579f7d"}
album: Het grote Dikkie Dik luisterboek
  type: MusicAlbum
  date published: 2018-02-09
album: Het grote Dikkie Dik luisterboek
  type: MusicAlbum
  date published: 2018-02-09
album: Lentekriebels
  type: MusicAlbum
  date published: 2020-03-06
album: Zomerfratsen
  type: MusicAlbum
  date published: 2020-06-21
album: Zomerfratsen
  type: MusicAlbum
  date published: 2020-06-21