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Hashtags

The following mostly illustrates how the name of a hashtag gets transformed by the applications. The input has the form

"tag": {"type": "Hashtag", "name": "${tag}"}

The last two examples illustrate more technical behavior. For particularities in parsing see Hashtags and JSON-LD.

Examples

Example 1

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://misskey/users/ac4e509pcgy40003",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/Fx0Fe3zrCqc",
  "published": "2025-09-01T08:03:48Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac4e509pcgy40003"
    ],
    "id": "http://pasture-one-actor/object/d-5tSng-iqk",
    "published": "2025-09-01T08:03:48Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#test"
    }
  }
}
misskey
{
  "id": "ac4eda5c3xwh006m",
  "createdAt": "2025-09-01T08:03:48.000Z",
  "userId": "ac4e6lk83xwh0003",
  "user": {
    "id": "ac4e6lk83xwh0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "text",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "tags": [
    "test"
  ],
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/d-5tSng-iqk",
  "clippedCount": 0
}

Example 2

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://misskey/users/ac4e509pcgy40003",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/9vgTx85Clyw",
  "published": "2025-09-01T08:03:49Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac4e509pcgy40003"
    ],
    "id": "http://pasture-one-actor/object/YFCz4TiJDTo",
    "published": "2025-09-01T08:03:49Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "nohash"
    }
  }
}
misskey
{
  "id": "ac4edax43xwh006n",
  "createdAt": "2025-09-01T08:03:49.000Z",
  "userId": "ac4e6lk83xwh0003",
  "user": {
    "id": "ac4e6lk83xwh0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "text",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/YFCz4TiJDTo",
  "clippedCount": 0
}

Example 3

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://misskey/users/ac4e509pcgy40003",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/EhzPCBAXjOU",
  "published": "2025-09-01T08:03:49Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac4e509pcgy40003"
    ],
    "id": "http://pasture-one-actor/object/MfdCUiB6YEA",
    "published": "2025-09-01T08:03:49Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#with-dash_under"
    }
  }
}
misskey
{
  "id": "ac4edax43xwh006o",
  "createdAt": "2025-09-01T08:03:49.000Z",
  "userId": "ac4e6lk83xwh0003",
  "user": {
    "id": "ac4e6lk83xwh0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "text",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "tags": [
    "with-dash_under"
  ],
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/MfdCUiB6YEA",
  "clippedCount": 0
}

Example 4

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://misskey/users/ac4e509pcgy40003",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/7bq_rfKRaOI",
  "published": "2025-09-01T08:03:50Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac4e509pcgy40003"
    ],
    "id": "http://pasture-one-actor/object/W1y6OMIrQhI",
    "published": "2025-09-01T08:03:50Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#with white space"
    }
  }
}
misskey
{
  "id": "ac4edbow3xwh006q",
  "createdAt": "2025-09-01T08:03:50.000Z",
  "userId": "ac4e6lk83xwh0003",
  "user": {
    "id": "ac4e6lk83xwh0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "text",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "tags": [
    "with white space"
  ],
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/W1y6OMIrQhI",
  "clippedCount": 0
}

Example 5

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://misskey/users/ac4e509pcgy40003",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/UtcQmgmhCGY",
  "published": "2025-09-01T08:03:51Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac4e509pcgy40003"
    ],
    "id": "http://pasture-one-actor/object/vdZQDSPt2Co",
    "published": "2025-09-01T08:03:51Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#with(subtag)"
    }
  }
}
misskey
{
  "id": "ac4edcgo3xwh006s",
  "createdAt": "2025-09-01T08:03:51.000Z",
  "userId": "ac4e6lk83xwh0003",
  "user": {
    "id": "ac4e6lk83xwh0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "text",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "tags": [
    "with(subtag)"
  ],
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/vdZQDSPt2Co",
  "clippedCount": 0
}

Example 6

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://misskey/users/ac4e509pcgy40003",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/WEYmgTCi8Cc",
  "published": "2025-09-01T08:03:51Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac4e509pcgy40003"
    ],
    "id": "http://pasture-one-actor/object/7vX5Ava8ILU",
    "published": "2025-09-01T08:03:51Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#with123"
    }
  }
}
misskey
{
  "id": "ac4edcgo3xwh006u",
  "createdAt": "2025-09-01T08:03:51.000Z",
  "userId": "ac4e6lk83xwh0003",
  "user": {
    "id": "ac4e6lk83xwh0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "text",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "tags": [
    "with123"
  ],
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/7vX5Ava8ILU",
  "clippedCount": 0
}

Example 7

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://misskey/users/ac4e509pcgy40003",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/_v4PpGIpiBQ",
  "published": "2025-09-01T08:03:52Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac4e509pcgy40003"
    ],
    "id": "http://pasture-one-actor/object/aOwq1tc3zW8",
    "published": "2025-09-01T08:03:52Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#1234"
    }
  }
}
misskey
{
  "id": "ac4edd8g3xwh006w",
  "createdAt": "2025-09-01T08:03:52.000Z",
  "userId": "ac4e6lk83xwh0003",
  "user": {
    "id": "ac4e6lk83xwh0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "text",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "tags": [
    "1234"
  ],
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/aOwq1tc3zW8",
  "clippedCount": 0
}

Example 8

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://misskey/users/ac4e509pcgy40003",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/njs3kNEcsa8",
  "published": "2025-09-01T08:03:53Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac4e509pcgy40003"
    ],
    "id": "http://pasture-one-actor/object/LWxR8QdQHEc",
    "published": "2025-09-01T08:03:53Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#CamelCase"
    }
  }
}
misskey
{
  "id": "ac4ede083xwh006y",
  "createdAt": "2025-09-01T08:03:53.000Z",
  "userId": "ac4e6lk83xwh0003",
  "user": {
    "id": "ac4e6lk83xwh0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "text",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "tags": [
    "camelcase"
  ],
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/LWxR8QdQHEc",
  "clippedCount": 0
}

Example 9

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://misskey/users/ac4e509pcgy40003",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/pY65gpmhvYA",
  "published": "2025-09-01T08:03:53Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac4e509pcgy40003"
    ],
    "id": "http://pasture-one-actor/object/Xrs1aGgnkYs",
    "published": "2025-09-01T08:03:53Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#\u00fcml\u00e4\u00fct\u00df"
    }
  }
}
misskey
{
  "id": "ac4ede083xwh0070",
  "createdAt": "2025-09-01T08:03:53.000Z",
  "userId": "ac4e6lk83xwh0003",
  "user": {
    "id": "ac4e6lk83xwh0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "text",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "tags": [
    "\u00fcml\u00e4\u00fct\u00df"
  ],
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/Xrs1aGgnkYs",
  "clippedCount": 0
}

Example 10

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://misskey/users/ac4e509pcgy40003",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/wsT66ySali4",
  "published": "2025-09-01T08:03:54Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac4e509pcgy40003"
    ],
    "id": "http://pasture-one-actor/object/nEQUJ694zCU",
    "published": "2025-09-01T08:03:54Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#\ud83d\udc04"
    }
  }
}
misskey
{
  "id": "ac4edes03xwh0072",
  "createdAt": "2025-09-01T08:03:54.000Z",
  "userId": "ac4e6lk83xwh0003",
  "user": {
    "id": "ac4e6lk83xwh0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "text",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "tags": [
    "\ud83d\udc04"
  ],
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/nEQUJ694zCU",
  "clippedCount": 0
}

Example 11

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://misskey/users/ac4e509pcgy40003",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/1Za7eHoknVE",
  "published": "2025-09-01T08:03:55Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac4e509pcgy40003"
    ],
    "id": "http://pasture-one-actor/object/b80xOkpEwRw",
    "published": "2025-09-01T08:03:55Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#\u2764\ufe0f"
    }
  }
}
misskey
{
  "id": "ac4edfjs3xwh0074",
  "createdAt": "2025-09-01T08:03:55.000Z",
  "userId": "ac4e6lk83xwh0003",
  "user": {
    "id": "ac4e6lk83xwh0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "text",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "tags": [
    "\u2764\ufe0f"
  ],
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/b80xOkpEwRw",
  "clippedCount": 0
}

Example 12

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://misskey/users/ac4e509pcgy40003",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/PQhgwHtwm8c",
  "published": "2025-09-01T08:03:55Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac4e509pcgy40003"
    ],
    "id": "http://pasture-one-actor/object/zxkBK2-iUFw",
    "published": "2025-09-01T08:03:55Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#\u725b"
    }
  }
}
misskey
{
  "id": "ac4edfjs3xwh0076",
  "createdAt": "2025-09-01T08:03:55.000Z",
  "userId": "ac4e6lk83xwh0003",
  "user": {
    "id": "ac4e6lk83xwh0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "text",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "tags": [
    "\u725b"
  ],
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/zxkBK2-iUFw",
  "clippedCount": 0
}

Example 13

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://misskey/users/ac4e509pcgy40003",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/EnBJyryezCA",
  "published": "2025-09-01T08:03:56Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac4e509pcgy40003"
    ],
    "id": "http://pasture-one-actor/object/MM4u0SJBwxg",
    "published": "2025-09-01T08:03:56Z",
    "content": "broken url parameter",
    "tag": {
      "type": "Hashtag",
      "name": "#test",
      "url": "https://ignore.example"
    }
  }
}
misskey
{
  "id": "ac4edgbk3xwh0078",
  "createdAt": "2025-09-01T08:03:56.000Z",
  "userId": "ac4e6lk83xwh0003",
  "user": {
    "id": "ac4e6lk83xwh0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "broken url parameter",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "tags": [
    "test"
  ],
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/MM4u0SJBwxg",
  "clippedCount": 0
}