Lena van Huijstee
type: MusicGroup
popularity: 21
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30f689414f572e6faa497d26425d52f7670ccc82d62b58bfbb93d47450f883ec
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/4bf77857-c59f-41e5-8475-cad68005a5c8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4bf77857-c59f-41e5-8475-cad68005a5c8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4bf77857-c59f-41e5-8475-cad68005a5c8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x30f689414f572e6faa497d26425d52f7670ccc82d62b58bfbb93d47450f883ec","name":"Lena van Huijstee","registered_at":"2026-06-11T19:24:51Z","symbol":"NIM0099366","token_address":"0x97e519e5cbdfc4487fda87f00a1490ceab6eb868","type":"artist","uuid":"4bf77857-c59f-41e5-8475-cad68005a5c8"}
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 0x30f689414f572e6faa497d26425d52f7670ccc82d62b58bfbb93d47450f883ec. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4bf77857-c59f-41e5-8475-cad68005a5c8.json and https://artists.proofprofile.net/proofs/artist/4bf77857-c59f-41e5-8475-cad68005a5c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x30f689414f572e6faa497d26425d52f7670ccc82d62b58bfbb93d47450f883ec","name":"Lena van Huijstee","registered_at":"2026-06-11T19:24:51Z","symbol":"NIM0099366","token_address":"0x97e519e5cbdfc4487fda87f00a1490ceab6eb868","type":"artist","uuid":"4bf77857-c59f-41e5-8475-cad68005a5c8"}