Willem Dafoe
type: MusicGroup
description: William James "Willem" Dafoe ( ; born July 22, 1955) is an American actor. Known for his prolific career portraying diverse roles in both mainstream and arthouse films, he is the recipient of various
popularity: 7
followers: 145
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf00718d1ef1efe84dcffbc17c10d56f7ed7d7ade5cfd6dfeac49ff9148d5dfcb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/adc3e376-322f-43de-be86-aa42398eb8b4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/adc3e376-322f-43de-be86-aa42398eb8b4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/adc3e376-322f-43de-be86-aa42398eb8b4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf00718d1ef1efe84dcffbc17c10d56f7ed7d7ade5cfd6dfeac49ff9148d5dfcb","name":"Willem Dafoe","registered_at":"2026-06-20T10:36:00Z","symbol":"NIM1594222","token_address":"0x927c61c1fca9ad8e01723fee8441eb6aa40ef55c","type":"artist","uuid":"adc3e376-322f-43de-be86-aa42398eb8b4"}
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 0xf00718d1ef1efe84dcffbc17c10d56f7ed7d7ade5cfd6dfeac49ff9148d5dfcb. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adc3e376-322f-43de-be86-aa42398eb8b4.json and https://artists.proofprofile.net/proofs/artist/adc3e376-322f-43de-be86-aa42398eb8b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
  text: {"copyright_id":"0xf00718d1ef1efe84dcffbc17c10d56f7ed7d7ade5cfd6dfeac49ff9148d5dfcb","name":"Willem Dafoe","registered_at":"2026-06-20T10:36:00Z","symbol":"NIM1594222","token_address":"0x927c61c1fca9ad8e01723fee8441eb6aa40ef55c","type":"artist","uuid":"adc3e376-322f-43de-be86-aa42398eb8b4"}