What does "Root NIP-05" mean?

Raw JSON

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  "pubkey": "b133bfc57bed61c391d4e8f953b906c7f1709c438d91c75fb6daf79449d5789d",
  "created_at": 1776189763,
  "tags": [],
  "content": "What does \"Root NIP-05\" mean?",
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