Bo Van der Werf
type: MusicGroup
genre: french jazz
popularity: 4
followers: 379
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2132a583dc3cfff6720648fa788cc39bcc07e77025eef5ec693c74a3d8a0071
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8a76081-170c-4d37-b1a9-35f9f8c7592f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8a76081-170c-4d37-b1a9-35f9f8c7592f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f8a76081-170c-4d37-b1a9-35f9f8c7592f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc2132a583dc3cfff6720648fa788cc39bcc07e77025eef5ec693c74a3d8a0071","name":"Bo Van der Werf","registered_at":"2026-06-21T16:09:05Z","symbol":"NIM1969469","token_address":"0xd02207758f983f0f974929d24cb7499f1033c9a3","type":"artist","uuid":"f8a76081-170c-4d37-b1a9-35f9f8c7592f"}
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 0xc2132a583dc3cfff6720648fa788cc39bcc07e77025eef5ec693c74a3d8a0071. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8a76081-170c-4d37-b1a9-35f9f8c7592f.json and https://artists.proofprofile.net/proofs/artist/f8a76081-170c-4d37-b1a9-35f9f8c7592f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
  text: {"copyright_id":"0xc2132a583dc3cfff6720648fa788cc39bcc07e77025eef5ec693c74a3d8a0071","name":"Bo Van der Werf","registered_at":"2026-06-21T16:09:05Z","symbol":"NIM1969469","token_address":"0xd02207758f983f0f974929d24cb7499f1033c9a3","type":"artist","uuid":"f8a76081-170c-4d37-b1a9-35f9f8c7592f"}
album: Speaking Kindly
  type: MusicAlbum
  date published: 2022-10-14
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  type: MusicAlbum
  date published: 2009
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  type: MusicAlbum
  date published: 2006
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  type: MusicAlbum
  date published: 2024-03-16