William Dufris
type: MusicGroup
genre: spoken word
description: William Duffy (February 1, 1958 – March 24, 2020) known professionally as William Dufris or Bill Dufris, was an American voice actor and audiobook narrator. Career Dufris began his audio career in
popularity: 10
followers: 411
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xec44bbdf9de56cb66500b9f0a2019936d051ec76ef06129729a75b1402af3cb1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b57cdd30-e533-4f41-9627-9a4f4a224873.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b57cdd30-e533-4f41-9627-9a4f4a224873.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b57cdd30-e533-4f41-9627-9a4f4a224873
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xec44bbdf9de56cb66500b9f0a2019936d051ec76ef06129729a75b1402af3cb1","name":"William Dufris","registered_at":"2026-06-20T14:34:20Z","symbol":"NIM1632902","token_address":"0x5a5c558ae6f979e63238e1c49c1fcdf6f1df70ed","type":"artist","uuid":"b57cdd30-e533-4f41-9627-9a4f4a224873"}
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 0xec44bbdf9de56cb66500b9f0a2019936d051ec76ef06129729a75b1402af3cb1. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b57cdd30-e533-4f41-9627-9a4f4a224873.json and https://artists.proofprofile.net/proofs/artist/b57cdd30-e533-4f41-9627-9a4f4a224873.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xec44bbdf9de56cb66500b9f0a2019936d051ec76ef06129729a75b1402af3cb1","name":"William Dufris","registered_at":"2026-06-20T14:34:20Z","symbol":"NIM1632902","token_address":"0x5a5c558ae6f979e63238e1c49c1fcdf6f1df70ed","type":"artist","uuid":"b57cdd30-e533-4f41-9627-9a4f4a224873"}
album: Jack London - The Short Stories
  type: MusicAlbum
  date published: 2009-01-12
album: Edgar Allan Poe - The Short Stories
  type: MusicAlbum
  date published: 2009-01-12