Francine van der Heijden
type: MusicGroup
popularity: 4
followers: 44
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe6a420f8257a62707ba874f2a0acd615478d7947ef349afb1a244c0ec3b8caa5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/702f8ad8-43df-4d74-a3b3-edf0e7ce1445.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/702f8ad8-43df-4d74-a3b3-edf0e7ce1445.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/702f8ad8-43df-4d74-a3b3-edf0e7ce1445
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe6a420f8257a62707ba874f2a0acd615478d7947ef349afb1a244c0ec3b8caa5","name":"Francine van der Heijden","registered_at":"2026-06-17T04:45:21Z","symbol":"NIM1285158","token_address":"0x1d72ee6f5742cafa50a3dc4351078a33ff702a63","type":"artist","uuid":"702f8ad8-43df-4d74-a3b3-edf0e7ce1445"}
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 0xe6a420f8257a62707ba874f2a0acd615478d7947ef349afb1a244c0ec3b8caa5. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/702f8ad8-43df-4d74-a3b3-edf0e7ce1445.json and https://artists.proofprofile.net/proofs/artist/702f8ad8-43df-4d74-a3b3-edf0e7ce1445.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xe6a420f8257a62707ba874f2a0acd615478d7947ef349afb1a244c0ec3b8caa5","name":"Francine van der Heijden","registered_at":"2026-06-17T04:45:21Z","symbol":"NIM1285158","token_address":"0x1d72ee6f5742cafa50a3dc4351078a33ff702a63","type":"artist","uuid":"702f8ad8-43df-4d74-a3b3-edf0e7ce1445"}
album: The Art of Mendelssohnian Song
  type: MusicAlbum
  date published: 1999-01-01
album: Various Composers: I Speak Your Name
  type: MusicAlbum
  date published: 2020-11-19