Baudouin De Jaer
type: MusicGroup
genre: traditional music
popularity: 7
followers: 357
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x261d2a15d6e3de8319f5adb55fd9078929a3625368674d76000939852ca26a11
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e80cbdf6-d32a-45a1-9edf-8ee61a53d5f8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e80cbdf6-d32a-45a1-9edf-8ee61a53d5f8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e80cbdf6-d32a-45a1-9edf-8ee61a53d5f8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x261d2a15d6e3de8319f5adb55fd9078929a3625368674d76000939852ca26a11","name":"Baudouin De Jaer","registered_at":"2026-06-21T09:04:02Z","symbol":"NIM1883575","token_address":"0xa9230cc40f2e47f1a17206d62832fabaf7107473","type":"artist","uuid":"e80cbdf6-d32a-45a1-9edf-8ee61a53d5f8"}
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 0x261d2a15d6e3de8319f5adb55fd9078929a3625368674d76000939852ca26a11. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e80cbdf6-d32a-45a1-9edf-8ee61a53d5f8.json and https://artists.proofprofile.net/proofs/artist/e80cbdf6-d32a-45a1-9edf-8ee61a53d5f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x261d2a15d6e3de8319f5adb55fd9078929a3625368674d76000939852ca26a11","name":"Baudouin De Jaer","registered_at":"2026-06-21T09:04:02Z","symbol":"NIM1883575","token_address":"0xa9230cc40f2e47f1a17206d62832fabaf7107473","type":"artist","uuid":"e80cbdf6-d32a-45a1-9edf-8ee61a53d5f8"}
album: Baudouin de Jaer: Compositions for Geomungo and Gayageum
  type: MusicAlbum
  date published: 2013-06-12
album: 4 Geomungo Sanjo, Vol. II
  type: MusicAlbum
  date published: 2018-09-03
album: Five Traces - Geomungo Compositions, Vol. II
  type: MusicAlbum
  date published: 2024-03-14