这2个有啥区别？

原始 JSON

{
  "kind": 1,
  "id": "743f732c586a7763c7e4533a481985b068ddce878adb4094baed6ade8da56e17",
  "pubkey": "81913081246d192c9a55951704270756b222094470b3171e58bb5e3c42ee8db5",
  "created_at": 1782049391,
  "tags": [
    [
      "alt",
      "A short note: 这2个有啥区别？"
    ],
    [
      "e",
      "1c29fbc45f504c3c229106195918163399d03f0ed817310476ea2b95dd60d659",
      "wss://relay.nostrzh.org/",
      "root",
      "908fbc3babc322eea473a0ab1e6bf6b3adcf899288ac97b2fa79f34ad408d4e4"
    ],
    [
      "p",
      "908fbc3babc322eea473a0ab1e6bf6b3adcf899288ac97b2fa79f34ad408d4e4",
      "wss://relay.damus.io/"
    ],
    [
      "client",
      "Amethyst"
    ]
  ],
  "content": "这2个有啥区别？",
  "sig": "4ea585f7a08d61cf3453caf515f89fc5efe766bc141f2cde213268f1f8ac8a61bbd552edcd0513596ef62066c413ef1bb2cc07d8f98a0009878754d3e0e342c5"
}