Jill Halfpenny
type: MusicGroup
genre: musicals
description: Jill Halfpenny (born 15 July 1975) is an English actress who first garnered attention playing Nicola Dobson in the coming-of-age drama series Byker Grove (1989–1992). She became more widely known for
popularity: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2309216a434975152bbcd887b382a52b5fbbb57098e23cf82cf8c1334d103d33
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bfb836fd-aebf-47c9-8f0d-8f0c0591d7ea.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bfb836fd-aebf-47c9-8f0d-8f0c0591d7ea.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bfb836fd-aebf-47c9-8f0d-8f0c0591d7ea
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2309216a434975152bbcd887b382a52b5fbbb57098e23cf82cf8c1334d103d33","name":"Jill Halfpenny","registered_at":"2026-06-20T19:06:19Z","symbol":"NIM1685359","token_address":"0x25bdac242442de1155028aeccbbf78e3d72a1d96","type":"artist","uuid":"bfb836fd-aebf-47c9-8f0d-8f0c0591d7ea"}
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 0x2309216a434975152bbcd887b382a52b5fbbb57098e23cf82cf8c1334d103d33. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bfb836fd-aebf-47c9-8f0d-8f0c0591d7ea.json and https://artists.proofprofile.net/proofs/artist/bfb836fd-aebf-47c9-8f0d-8f0c0591d7ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x2309216a434975152bbcd887b382a52b5fbbb57098e23cf82cf8c1334d103d33","name":"Jill Halfpenny","registered_at":"2026-06-20T19:06:19Z","symbol":"NIM1685359","token_address":"0x25bdac242442de1155028aeccbbf78e3d72a1d96","type":"artist","uuid":"bfb836fd-aebf-47c9-8f0d-8f0c0591d7ea"}