Kees Boeke
type: MusicGroup
genre: chamber music
genre: medieval
description: Cornelis "Kees" Boeke (25 September 1884 3 July 1966) was a Dutch reformist educator, Quaker missionary and pacifist. He is best known for his popular essay/book Cosmic View (1957) which presents a s
popularity: 4
followers: 128
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2b318d4f7f71387f4ce4f02b91db396e47eaeb21b07cb70a07133f5a8cd9cc68
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/54e466df-cc90-4cb2-99a7-3c849372c13a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/54e466df-cc90-4cb2-99a7-3c849372c13a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/54e466df-cc90-4cb2-99a7-3c849372c13a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2b318d4f7f71387f4ce4f02b91db396e47eaeb21b07cb70a07133f5a8cd9cc68","name":"Kees Boeke","registered_at":"2026-06-16T19:18:24Z","symbol":"NIM1149873","token_address":"0x2525a34b5c2b42c7c396e8f439cc3ed3b525d6c5","type":"artist","uuid":"54e466df-cc90-4cb2-99a7-3c849372c13a"}
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 0x2b318d4f7f71387f4ce4f02b91db396e47eaeb21b07cb70a07133f5a8cd9cc68. 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/54e466df-cc90-4cb2-99a7-3c849372c13a.json and https://artists.proofprofile.net/proofs/artist/54e466df-cc90-4cb2-99a7-3c849372c13a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x2b318d4f7f71387f4ce4f02b91db396e47eaeb21b07cb70a07133f5a8cd9cc68","name":"Kees Boeke","registered_at":"2026-06-16T19:18:24Z","symbol":"NIM1149873","token_address":"0x2525a34b5c2b42c7c396e8f439cc3ed3b525d6c5","type":"artist","uuid":"54e466df-cc90-4cb2-99a7-3c849372c13a"}
album: Monodia: Kees boeke
  type: MusicAlbum
  date published: 2000-10-04
album: Monodia: Kees boeke
  type: MusicAlbum
  date published: 2000-10-04