Haydn Gwynne
type: MusicGroup
description: Haydn Gwynne (; 21 March 195720 October 2023) was an English actress. She was nominated for the 1992 BAFTA TV Award for Best Light Entertainment Performance for the comedy series Drop the Dead Donkey
popularity: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x723b1fae18d7bc638f11728c4b572f575d142f8cae025a30e55a593d6c16e112
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954069
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954069
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a461968-c864-46b4-8231-e406167a74a0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a461968-c864-46b4-8231-e406167a74a0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7a461968-c864-46b4-8231-e406167a74a0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:30:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x723b1fae18d7bc638f11728c4b572f575d142f8cae025a30e55a593d6c16e112","name":"Haydn Gwynne","registered_at":"2026-06-17T08:18:02Z","symbol":"NIM1335863","token_address":"0x66ce353a81e773e7c5c7ea28bdf3c7ea700d68ce","type":"artist","uuid":"7a461968-c864-46b4-8231-e406167a74a0"}
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 0x723b1fae18d7bc638f11728c4b572f575d142f8cae025a30e55a593d6c16e112. Chain 2 (Bitcoin): anchored in block 954069 (2026-06-17T08:30:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a461968-c864-46b4-8231-e406167a74a0.json and https://artists.proofprofile.net/proofs/artist/7a461968-c864-46b4-8231-e406167a74a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:30:25Z
  text: {"copyright_id":"0x723b1fae18d7bc638f11728c4b572f575d142f8cae025a30e55a593d6c16e112","name":"Haydn Gwynne","registered_at":"2026-06-17T08:18:02Z","symbol":"NIM1335863","token_address":"0x66ce353a81e773e7c5c7ea28bdf3c7ea700d68ce","type":"artist","uuid":"7a461968-c864-46b4-8231-e406167a74a0"}