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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": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/acbvxoc67a2y0003"
  ],
  "id": "http://pasture-one-actor/activity/TIOOfTZJ5sY",
  "published": "2025-09-06T13:56:54Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/acbvxoc67a2y0003"
    ],
    "id": "http://pasture-one-actor/object/suEHl7GgGy4",
    "published": "2025-09-06T13:56:54Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#test"
    }
  }
}
misskey
{
  "id": "acbw6mpcnd1t007q",
  "createdAt": "2025-09-06T13:56:54.000Z",
  "userId": "acbvz9wond1t0003",
  "user": {
    "id": "acbvz9wond1t0003",
    "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/suEHl7GgGy4",
  "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": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/acbvxoc67a2y0003"
  ],
  "id": "http://pasture-one-actor/activity/IK1EmPJqlzU",
  "published": "2025-09-06T13:56:54Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/acbvxoc67a2y0003"
    ],
    "id": "http://pasture-one-actor/object/TnHbwpNjATM",
    "published": "2025-09-06T13:56:54Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "nohash"
    }
  }
}
misskey
{
  "id": "acbw6mpcnd1t007r",
  "createdAt": "2025-09-06T13:56:54.000Z",
  "userId": "acbvz9wond1t0003",
  "user": {
    "id": "acbvz9wond1t0003",
    "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/TnHbwpNjATM",
  "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": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/acbvxoc67a2y0003"
  ],
  "id": "http://pasture-one-actor/activity/p3aN6PC_ajE",
  "published": "2025-09-06T13:56:55Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/acbvxoc67a2y0003"
    ],
    "id": "http://pasture-one-actor/object/g2--1JFN-m0",
    "published": "2025-09-06T13:56:55Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#with-dash_under"
    }
  }
}
misskey
{
  "id": "acbw6nh4nd1t007s",
  "createdAt": "2025-09-06T13:56:55.000Z",
  "userId": "acbvz9wond1t0003",
  "user": {
    "id": "acbvz9wond1t0003",
    "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/g2--1JFN-m0",
  "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": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/acbvxoc67a2y0003"
  ],
  "id": "http://pasture-one-actor/activity/7wsWUxnuTME",
  "published": "2025-09-06T13:56:56Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/acbvxoc67a2y0003"
    ],
    "id": "http://pasture-one-actor/object/0MRZUFduKWs",
    "published": "2025-09-06T13:56:56Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#with white space"
    }
  }
}
misskey
{
  "id": "acbw6o8wnd1t007u",
  "createdAt": "2025-09-06T13:56:56.000Z",
  "userId": "acbvz9wond1t0003",
  "user": {
    "id": "acbvz9wond1t0003",
    "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/0MRZUFduKWs",
  "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": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/acbvxoc67a2y0003"
  ],
  "id": "http://pasture-one-actor/activity/lsb37Pa-Jsg",
  "published": "2025-09-06T13:56:56Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/acbvxoc67a2y0003"
    ],
    "id": "http://pasture-one-actor/object/j0GJJPM94-w",
    "published": "2025-09-06T13:56:56Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#with(subtag)"
    }
  }
}
misskey
{
  "id": "acbw6o8wnd1t007w",
  "createdAt": "2025-09-06T13:56:56.000Z",
  "userId": "acbvz9wond1t0003",
  "user": {
    "id": "acbvz9wond1t0003",
    "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/j0GJJPM94-w",
  "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": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/acbvxoc67a2y0003"
  ],
  "id": "http://pasture-one-actor/activity/0zXj66GTS4U",
  "published": "2025-09-06T13:56:57Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/acbvxoc67a2y0003"
    ],
    "id": "http://pasture-one-actor/object/j0939vbz-HU",
    "published": "2025-09-06T13:56:57Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#with123"
    }
  }
}
misskey
{
  "id": "acbw6p0ond1t007y",
  "createdAt": "2025-09-06T13:56:57.000Z",
  "userId": "acbvz9wond1t0003",
  "user": {
    "id": "acbvz9wond1t0003",
    "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/j0939vbz-HU",
  "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": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/acbvxoc67a2y0003"
  ],
  "id": "http://pasture-one-actor/activity/IQ9ljyfbMKI",
  "published": "2025-09-06T13:56:58Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/acbvxoc67a2y0003"
    ],
    "id": "http://pasture-one-actor/object/wG_U-_QYObs",
    "published": "2025-09-06T13:56:58Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#1234"
    }
  }
}
misskey
{
  "id": "acbw6psgnd1t0080",
  "createdAt": "2025-09-06T13:56:58.000Z",
  "userId": "acbvz9wond1t0003",
  "user": {
    "id": "acbvz9wond1t0003",
    "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/wG_U-_QYObs",
  "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": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/acbvxoc67a2y0003"
  ],
  "id": "http://pasture-one-actor/activity/UUf5gpqJiyI",
  "published": "2025-09-06T13:56:58Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/acbvxoc67a2y0003"
    ],
    "id": "http://pasture-one-actor/object/9xlT3722D6U",
    "published": "2025-09-06T13:56:58Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#CamelCase"
    }
  }
}
misskey
{
  "id": "acbw6psgnd1t0082",
  "createdAt": "2025-09-06T13:56:58.000Z",
  "userId": "acbvz9wond1t0003",
  "user": {
    "id": "acbvz9wond1t0003",
    "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/9xlT3722D6U",
  "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": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/acbvxoc67a2y0003"
  ],
  "id": "http://pasture-one-actor/activity/19w3LMS3CyU",
  "published": "2025-09-06T13:56:59Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/acbvxoc67a2y0003"
    ],
    "id": "http://pasture-one-actor/object/hq74LtVA-Ro",
    "published": "2025-09-06T13:56:59Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#\u00fcml\u00e4\u00fct\u00df"
    }
  }
}
misskey
{
  "id": "acbw6qk8nd1t0084",
  "createdAt": "2025-09-06T13:56:59.000Z",
  "userId": "acbvz9wond1t0003",
  "user": {
    "id": "acbvz9wond1t0003",
    "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/hq74LtVA-Ro",
  "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": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/acbvxoc67a2y0003"
  ],
  "id": "http://pasture-one-actor/activity/vOf-s8OCzAU",
  "published": "2025-09-06T13:57:00Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/acbvxoc67a2y0003"
    ],
    "id": "http://pasture-one-actor/object/ajZD_2DwNvM",
    "published": "2025-09-06T13:57:00Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#\ud83d\udc04"
    }
  }
}
misskey
{
  "id": "acbw6rc0nd1t0086",
  "createdAt": "2025-09-06T13:57:00.000Z",
  "userId": "acbvz9wond1t0003",
  "user": {
    "id": "acbvz9wond1t0003",
    "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/ajZD_2DwNvM",
  "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": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/acbvxoc67a2y0003"
  ],
  "id": "http://pasture-one-actor/activity/GisyHESmY8Y",
  "published": "2025-09-06T13:57:00Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/acbvxoc67a2y0003"
    ],
    "id": "http://pasture-one-actor/object/-k7yrKwZbaw",
    "published": "2025-09-06T13:57:00Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#\u2764\ufe0f"
    }
  }
}
misskey
{
  "id": "acbw6rc0nd1t0088",
  "createdAt": "2025-09-06T13:57:00.000Z",
  "userId": "acbvz9wond1t0003",
  "user": {
    "id": "acbvz9wond1t0003",
    "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/-k7yrKwZbaw",
  "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": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/acbvxoc67a2y0003"
  ],
  "id": "http://pasture-one-actor/activity/XuAZgZ2X6ig",
  "published": "2025-09-06T13:57:01Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/acbvxoc67a2y0003"
    ],
    "id": "http://pasture-one-actor/object/Tku1gtpKXN8",
    "published": "2025-09-06T13:57:01Z",
    "content": "text",
    "tag": {
      "type": "Hashtag",
      "name": "#\u725b"
    }
  }
}
misskey
{
  "id": "acbw6s3snd1t008a",
  "createdAt": "2025-09-06T13:57:01.000Z",
  "userId": "acbvz9wond1t0003",
  "user": {
    "id": "acbvz9wond1t0003",
    "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/Tku1gtpKXN8",
  "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": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/acbvxoc67a2y0003"
  ],
  "id": "http://pasture-one-actor/activity/FBeojelFYrE",
  "published": "2025-09-06T13:57:02Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/acbvxoc67a2y0003"
    ],
    "id": "http://pasture-one-actor/object/nnnRyPd272I",
    "published": "2025-09-06T13:57:02Z",
    "content": "broken url parameter",
    "tag": {
      "type": "Hashtag",
      "name": "#test",
      "url": "https://ignore.example"
    }
  }
}
misskey
{
  "id": "acbw6svknd1t008c",
  "createdAt": "2025-09-06T13:57:02.000Z",
  "userId": "acbvz9wond1t0003",
  "user": {
    "id": "acbvz9wond1t0003",
    "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/nnnRyPd272I",
  "clippedCount": 0
}