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Image Attachments

The Image type is defined in ActivityStreams Vocabulary.

In the following, we test how various configurations of it are rendered.

A ❌ in the support table means that the entire message has failed to parse. A "-" means that the message was parsed, but no attachment was generated. The text, e.g. image or unknown is the the media type the Fediverse application determined for the attachment.

We furthermore wish to point out that having several links in the url property is useful to both offer the attachment in different formats and say dimensions, e.g. one high resolution and one low resolution one.

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/a9zm65u3q2990003"
  ],
  "id": "http://pasture-one-actor/actor/tlejtrF1OeE",
  "published": "2025-07-09T14:27:01Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/a9zm65u3q2990003"
    ],
    "id": "http://pasture-one-actor/actor/6cpqA_e_GUg",
    "published": "2025-07-09T14:27:01Z",
    "content": "Format png",
    "attachment": {
      "type": "Document",
      "url": "http://pasture-one-actor/images/001.png"
    }
  }
}
misskey
{
  "id": "a9zma3nsgluj002l",
  "createdAt": "2025-07-09T14:27:01.000Z",
  "userId": "a9zm7rzwgluj0003",
  "user": {
    "id": "a9zm7rzwgluj0003",
    "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": "Format png",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [
    "a9zma3txgluj002k"
  ],
  "files": [
    {
      "id": "a9zma3txgluj002k",
      "createdAt": "2025-07-09T14:27:01.221Z",
      "name": "001.png",
      "type": "image/png",
      "md5": "599132b5fcaa4a25fd1a3ef9beb2b37d",
      "size": 0,
      "isSensitive": false,
      "blurhash": "e1Kb]S}?fQ}?fQ}?j@fQj@fQfQfQfQfQfQ}?j@fQj@fQfQfQfQfQfQ",
      "properties": {
        "width": 40,
        "height": 40
      },
      "url": "http://pasture-one-actor/images/001.png",
      "thumbnailUrl": "http://pasture-one-actor/images/001.png",
      "comment": null,
      "folderId": null,
      "folder": null,
      "userId": "a9zm7rzwgluj0003",
      "user": null
    }
  ],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/actor/6cpqA_e_GUg",
  "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/a9zm65u3q2990003"
  ],
  "id": "http://pasture-one-actor/actor/xRLd2J0MpEk",
  "published": "2025-07-09T14:27:01Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/a9zm65u3q2990003"
    ],
    "id": "http://pasture-one-actor/actor/F2YmtogvdGk",
    "published": "2025-07-09T14:27:01Z",
    "content": "Format png",
    "attachment": {
      "type": "Document",
      "url": "http://pasture-one-actor/images/001b.png",
      "mediaType": "image/png"
    }
  }
}
misskey
{
  "id": "a9zma3nsgluj002n",
  "createdAt": "2025-07-09T14:27:01.000Z",
  "userId": "a9zm7rzwgluj0003",
  "user": {
    "id": "a9zm7rzwgluj0003",
    "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": "Format png",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [
    "a9zma4cwgluj002m"
  ],
  "files": [
    {
      "id": "a9zma4cwgluj002m",
      "createdAt": "2025-07-09T14:27:01.904Z",
      "name": "001b.png",
      "type": "image/png",
      "md5": "c4c1bbee90dd3b5afa3afd8d6fa6ebb1",
      "size": 0,
      "isSensitive": false,
      "blurhash": "e4I{@^-afQ-afQ-ajufQjufQfQfQfQfQfQ-ajufQjufQfQfQfQfQfQ",
      "properties": {
        "width": 40,
        "height": 40
      },
      "url": "http://pasture-one-actor/images/001b.png",
      "thumbnailUrl": "http://pasture-one-actor/images/001b.png",
      "comment": null,
      "folderId": null,
      "folder": null,
      "userId": "a9zm7rzwgluj0003",
      "user": null
    }
  ],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/actor/F2YmtogvdGk",
  "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/a9zm65u3q2990003"
  ],
  "id": "http://pasture-one-actor/actor/ocNHFt27GqE",
  "published": "2025-07-09T14:27:02Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/a9zm65u3q2990003"
    ],
    "id": "http://pasture-one-actor/actor/lkxK8LZLixA",
    "published": "2025-07-09T14:27:02Z",
    "content": "Format jpg",
    "attachment": {
      "type": "Image",
      "url": "http://pasture-one-actor/images/002.jpg"
    }
  }
}
misskey
{
  "id": "a9zma4fkgluj002p",
  "createdAt": "2025-07-09T14:27:02.000Z",
  "userId": "a9zm7rzwgluj0003",
  "user": {
    "id": "a9zm7rzwgluj0003",
    "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": "Format jpg",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [
    "a9zma4tygluj002o"
  ],
  "files": [
    {
      "id": "a9zma4tygluj002o",
      "createdAt": "2025-07-09T14:27:02.518Z",
      "name": "002.jpg",
      "type": "image/jpeg",
      "md5": "20cdb1fdbf48c1ee670a9e7da6ecfeb9",
      "size": 0,
      "isSensitive": false,
      "blurhash": "e27?LrucfQucfQucfjfQfjfQfQfQfQfQfQucfjfQfjfQfQfQfQfQfQ",
      "properties": {
        "width": 40,
        "height": 40
      },
      "url": "http://pasture-one-actor/images/002.jpg",
      "thumbnailUrl": "http://pasture-one-actor/images/002.jpg",
      "comment": null,
      "folderId": null,
      "folder": null,
      "userId": "a9zm7rzwgluj0003",
      "user": null
    }
  ],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/actor/lkxK8LZLixA",
  "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/a9zm65u3q2990003"
  ],
  "id": "http://pasture-one-actor/actor/dJUUNk-hz1k",
  "published": "2025-07-09T14:27:03Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/a9zm65u3q2990003"
    ],
    "id": "http://pasture-one-actor/actor/LC8W28kIjuU",
    "published": "2025-07-09T14:27:03Z",
    "content": "Format jpg",
    "attachment": {
      "type": "Image",
      "url": "http://pasture-one-actor/images/002b.jpg",
      "mediaType": "image/jpeg"
    }
  }
}
misskey
{
  "id": "a9zma57cgluj002r",
  "createdAt": "2025-07-09T14:27:03.000Z",
  "userId": "a9zm7rzwgluj0003",
  "user": {
    "id": "a9zm7rzwgluj0003",
    "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": "Format jpg",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [
    "a9zma5cdgluj002q"
  ],
  "files": [
    {
      "id": "a9zma5cdgluj002q",
      "createdAt": "2025-07-09T14:27:03.181Z",
      "name": "002b.jpg",
      "type": "image/jpeg",
      "md5": "9e459fbec53277441bd8f34649ad3c9d",
      "size": 0,
      "isSensitive": false,
      "blurhash": "e2BZ*jykfQykfQykj@fQj@fQfQfQfQfQfQykj@fQj@fQfQfQfQfQfQ",
      "properties": {
        "width": 40,
        "height": 40
      },
      "url": "http://pasture-one-actor/images/002b.jpg",
      "thumbnailUrl": "http://pasture-one-actor/images/002b.jpg",
      "comment": null,
      "folderId": null,
      "folder": null,
      "userId": "a9zm7rzwgluj0003",
      "user": null
    }
  ],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/actor/LC8W28kIjuU",
  "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/a9zm65u3q2990003"
  ],
  "id": "http://pasture-one-actor/actor/3B_n9tCxueQ",
  "published": "2025-07-09T14:27:03Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/a9zm65u3q2990003"
    ],
    "id": "http://pasture-one-actor/actor/4lZF_ANykBA",
    "published": "2025-07-09T14:27:03Z",
    "content": "Format svg",
    "attachment": {
      "type": "Image",
      "url": "http://pasture-one-actor/assets/FediverseLogo.svg"
    }
  }
}
misskey
{
  "id": "a9zma57cgluj002t",
  "createdAt": "2025-07-09T14:27:03.000Z",
  "userId": "a9zm7rzwgluj0003",
  "user": {
    "id": "a9zm7rzwgluj0003",
    "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": "Format svg",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [
    "a9zma5vcgluj002s"
  ],
  "files": [
    {
      "id": "a9zma5vcgluj002s",
      "createdAt": "2025-07-09T14:27:03.864Z",
      "name": "FediverseLogo.svg",
      "type": "image/svg+xml",
      "md5": "c0cf4aac6c02350b855e29194f209216",
      "size": 0,
      "isSensitive": false,
      "blurhash": "eLDlNJ.}4.T?Im}fnOEVw[xb9IK[N1w~-T5cO?RPX2$yARM{tkj0t7",
      "properties": {},
      "url": "http://pasture-one-actor/assets/FediverseLogo.svg",
      "thumbnailUrl": "http://pasture-one-actor/assets/FediverseLogo.svg",
      "comment": null,
      "folderId": null,
      "folder": null,
      "userId": "a9zm7rzwgluj0003",
      "user": null
    }
  ],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/actor/4lZF_ANykBA",
  "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/a9zm65u3q2990003"
  ],
  "id": "http://pasture-one-actor/actor/DhRMHisbFOo",
  "published": "2025-07-09T14:27:04Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/a9zm65u3q2990003"
    ],
    "id": "http://pasture-one-actor/actor/UMl3rDQ_dX8",
    "published": "2025-07-09T14:27:04Z",
    "content": "Format eps",
    "attachment": {
      "type": "Image",
      "url": "http://pasture-one-actor/images/003.eps"
    }
  }
}
misskey
{
  "id": "a9zma5z4gluj002v",
  "createdAt": "2025-07-09T14:27:04.000Z",
  "userId": "a9zm7rzwgluj0003",
  "user": {
    "id": "a9zm7rzwgluj0003",
    "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": "Format eps",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [
    "a9zma6cfgluj002u"
  ],
  "files": [
    {
      "id": "a9zma6cfgluj002u",
      "createdAt": "2025-07-09T14:27:04.479Z",
      "name": "003.eps",
      "type": "application/eps",
      "md5": "8b9b1c602a8eec4fdb8ef4f6d1daa9de",
      "size": 0,
      "isSensitive": false,
      "blurhash": null,
      "properties": {},
      "url": "http://pasture-one-actor/images/003.eps",
      "thumbnailUrl": null,
      "comment": null,
      "folderId": null,
      "folder": null,
      "userId": "a9zm7rzwgluj0003",
      "user": null
    }
  ],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/actor/UMl3rDQ_dX8",
  "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/a9zm65u3q2990003"
  ],
  "id": "http://pasture-one-actor/actor/3AxkNdOx9FM",
  "published": "2025-07-09T14:27:05Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/a9zm65u3q2990003"
    ],
    "id": "http://pasture-one-actor/actor/Mc04rdl1laI",
    "published": "2025-07-09T14:27:05Z",
    "content": "Format gif",
    "attachment": {
      "type": "Image",
      "url": "http://pasture-one-actor/images/003b.gif"
    }
  }
}
misskey
{
  "id": "a9zma6qwgluj002x",
  "createdAt": "2025-07-09T14:27:05.000Z",
  "userId": "a9zm7rzwgluj0003",
  "user": {
    "id": "a9zm7rzwgluj0003",
    "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": "Format gif",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [
    "a9zma6wugluj002w"
  ],
  "files": [
    {
      "id": "a9zma6wugluj002w",
      "createdAt": "2025-07-09T14:27:05.214Z",
      "name": "003b.gif",
      "type": "image/gif",
      "md5": "02f395fd27e33c464b1e3b6eb4d1f691",
      "size": 0,
      "isSensitive": false,
      "blurhash": "e20A1}frfQfrfQfrfRfQfRfQfQfQfQfQfQfrfRfQfRfQfQfQfQfQfQ",
      "properties": {
        "width": 40,
        "height": 40
      },
      "url": "http://pasture-one-actor/images/003b.gif",
      "thumbnailUrl": "http://pasture-one-actor/images/003b.gif",
      "comment": null,
      "folderId": null,
      "folder": null,
      "userId": "a9zm7rzwgluj0003",
      "user": null
    }
  ],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/actor/Mc04rdl1laI",
  "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/a9zm65u3q2990003"
  ],
  "id": "http://pasture-one-actor/actor/TdL6DW0wrI8",
  "published": "2025-07-09T14:27:05Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/a9zm65u3q2990003"
    ],
    "id": "http://pasture-one-actor/actor/p0hh7NCpgzQ",
    "published": "2025-07-09T14:27:05Z",
    "content": "Format tiff",
    "attachment": {
      "type": "Image",
      "url": "http://pasture-one-actor/images/003c.tiff"
    }
  }
}
misskey
{
  "id": "a9zma6qwgluj002z",
  "createdAt": "2025-07-09T14:27:05.000Z",
  "userId": "a9zm7rzwgluj0003",
  "user": {
    "id": "a9zm7rzwgluj0003",
    "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": "Format tiff",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [
    "a9zma7d5gluj002y"
  ],
  "files": [
    {
      "id": "a9zma7d5gluj002y",
      "createdAt": "2025-07-09T14:27:05.801Z",
      "name": "003c.tiff",
      "type": "image/tiff",
      "md5": "650262625f2cec4c8d37e1a4c66e1f75",
      "size": 0,
      "isSensitive": false,
      "blurhash": null,
      "properties": {
        "width": 40,
        "height": 40
      },
      "url": "http://pasture-one-actor/images/003c.tiff",
      "thumbnailUrl": "http://pasture-one-actor/images/003c.tiff",
      "comment": null,
      "folderId": null,
      "folder": null,
      "userId": "a9zm7rzwgluj0003",
      "user": null
    }
  ],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/actor/p0hh7NCpgzQ",
  "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/a9zm65u3q2990003"
  ],
  "id": "http://pasture-one-actor/actor/RjF9cDR1gS8",
  "published": "2025-07-09T14:27:06Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/a9zm65u3q2990003"
    ],
    "id": "http://pasture-one-actor/actor/VRrhIfYlKS8",
    "published": "2025-07-09T14:27:06Z",
    "content": "Format webp",
    "attachment": {
      "type": "Image",
      "url": "http://pasture-one-actor/images/003d.webp"
    }
  }
}
misskey
{
  "id": "a9zma7iogluj0031",
  "createdAt": "2025-07-09T14:27:06.000Z",
  "userId": "a9zm7rzwgluj0003",
  "user": {
    "id": "a9zm7rzwgluj0003",
    "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": "Format webp",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [
    "a9zma7xfgluj0030"
  ],
  "files": [
    {
      "id": "a9zma7xfgluj0030",
      "createdAt": "2025-07-09T14:27:06.531Z",
      "name": "003d.webp",
      "type": "image/webp",
      "md5": "6f40199394f44759c9e7af9e12a00ef7",
      "size": 0,
      "isSensitive": false,
      "blurhash": "e28WxdtDfAs^fStDfmfSfSfRfAfSfQfOfPs^fSfhfhfOf9fRfOfhfO",
      "properties": {
        "width": 40,
        "height": 40
      },
      "url": "http://pasture-one-actor/images/003d.webp",
      "thumbnailUrl": "http://pasture-one-actor/images/003d.webp",
      "comment": null,
      "folderId": null,
      "folder": null,
      "userId": "a9zm7rzwgluj0003",
      "user": null
    }
  ],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/actor/VRrhIfYlKS8",
  "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/a9zm65u3q2990003"
  ],
  "id": "http://pasture-one-actor/actor/AxU4swu2lb8",
  "published": "2025-07-09T14:27:06Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/a9zm65u3q2990003"
    ],
    "id": "http://pasture-one-actor/actor/iW5Hag1G06E",
    "published": "2025-07-09T14:27:06Z",
    "content": "url does not exit",
    "attachment": {
      "type": "Document",
      "url": "http://pasture-one-actor/assets/does_not_exist.png"
    }
  }
}

no result

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/a9zm65u3q2990003"
  ],
  "id": "http://pasture-one-actor/actor/LIJ7Aq0BCj4",
  "published": "2025-07-09T14:27:18Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/a9zm65u3q2990003"
    ],
    "id": "http://pasture-one-actor/actor/8oOYAJ4djIY",
    "published": "2025-07-09T14:27:18Z",
    "content": "Wrong height / width",
    "attachment": {
      "type": "Document",
      "width": 13,
      "height": 17,
      "url": "http://pasture-one-actor/images/004.png"
    }
  }
}
misskey
{
  "id": "a9zmags0gluj0033",
  "createdAt": "2025-07-09T14:27:18.000Z",
  "userId": "a9zm7rzwgluj0003",
  "user": {
    "id": "a9zm7rzwgluj0003",
    "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": "Wrong height / width",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [
    "a9zmah3cgluj0032"
  ],
  "files": [
    {
      "id": "a9zmah3cgluj0032",
      "createdAt": "2025-07-09T14:27:18.408Z",
      "name": "004.png",
      "type": "image/png",
      "md5": "fce89561c39dd9472156eef4e2f5df71",
      "size": 0,
      "isSensitive": false,
      "blurhash": "e08?lV.gfQ.gfQ.gj@fQj@fQfQfQfQfQfQ.gj@fQj@fQfQfQfQfQfQ",
      "properties": {
        "width": 40,
        "height": 40
      },
      "url": "http://pasture-one-actor/images/004.png",
      "thumbnailUrl": "http://pasture-one-actor/images/004.png",
      "comment": null,
      "folderId": null,
      "folder": null,
      "userId": "a9zm7rzwgluj0003",
      "user": null
    }
  ],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/actor/8oOYAJ4djIY",
  "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/a9zm65u3q2990003"
  ],
  "id": "http://pasture-one-actor/actor/0yIXlUc0vi4",
  "published": "2025-07-09T14:27:18Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/a9zm65u3q2990003"
    ],
    "id": "http://pasture-one-actor/actor/jzQQca3Ksaw",
    "published": "2025-07-09T14:27:18Z",
    "content": "No type",
    "attachment": {
      "url": "http://pasture-one-actor/images/005.png"
    }
  }
}
misskey
{
  "id": "a9zmags0gluj0034",
  "createdAt": "2025-07-09T14:27:18.000Z",
  "userId": "a9zm7rzwgluj0003",
  "user": {
    "id": "a9zm7rzwgluj0003",
    "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": "No type",
  "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/actor/jzQQca3Ksaw",
  "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/a9zm65u3q2990003"
  ],
  "id": "http://pasture-one-actor/actor/s-tw18TJukM",
  "published": "2025-07-09T14:27:19Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/a9zm65u3q2990003"
    ],
    "id": "http://pasture-one-actor/actor/IGdN9nHhdYs",
    "published": "2025-07-09T14:27:19Z",
    "content": "url is Link object",
    "attachment": {
      "type": "Image",
      "url": {
        "type": "Link",
        "href": "http://pasture-one-actor/images/006.png"
      }
    }
  }
}
misskey
{
  "id": "a9zmahjsgluj0035",
  "createdAt": "2025-07-09T14:27:19.000Z",
  "userId": "a9zm7rzwgluj0003",
  "user": {
    "id": "a9zm7rzwgluj0003",
    "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": "url is Link object",
  "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/actor/IGdN9nHhdYs",
  "clippedCount": 0
}

Example 14

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/a9zm65u3q2990003"
  ],
  "id": "http://pasture-one-actor/actor/nTfoPIlyraA",
  "published": "2025-07-09T14:27:20Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/a9zm65u3q2990003"
    ],
    "id": "http://pasture-one-actor/actor/oC8g9arbvr4",
    "published": "2025-07-09T14:27:20Z",
    "content": "url is Link object with media type",
    "attachment": {
      "type": "Image",
      "url": {
        "type": "Link",
        "href": "http://pasture-one-actor/images/006b.png",
        "mediaType": "image/png"
      }
    }
  }
}
misskey
{
  "id": "a9zmaibkgluj0036",
  "createdAt": "2025-07-09T14:27:20.000Z",
  "userId": "a9zm7rzwgluj0003",
  "user": {
    "id": "a9zm7rzwgluj0003",
    "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": "url is Link object with media type",
  "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/actor/oC8g9arbvr4",
  "clippedCount": 0
}

Example 15

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/a9zm65u3q2990003"
  ],
  "id": "http://pasture-one-actor/actor/A4gfuF_euW8",
  "published": "2025-07-09T14:27:20Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/a9zm65u3q2990003"
    ],
    "id": "http://pasture-one-actor/actor/GUd3HtTdyc4",
    "published": "2025-07-09T14:27:20Z",
    "content": "url is Link object in an array",
    "attachment": {
      "type": "Image",
      "url": [
        {
          "type": "Link",
          "href": "http://pasture-one-actor/images/006c.png"
        }
      ]
    }
  }
}
misskey
{
  "id": "a9zmaibkgluj0037",
  "createdAt": "2025-07-09T14:27:20.000Z",
  "userId": "a9zm7rzwgluj0003",
  "user": {
    "id": "a9zm7rzwgluj0003",
    "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": "url is Link object in an array",
  "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/actor/GUd3HtTdyc4",
  "clippedCount": 0
}

Example 16

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/a9zm65u3q2990003"
  ],
  "id": "http://pasture-one-actor/actor/UdTirys9P0w",
  "published": "2025-07-09T14:27:21Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/a9zm65u3q2990003"
    ],
    "id": "http://pasture-one-actor/actor/WiYTYw-x56Y",
    "published": "2025-07-09T14:27:21Z",
    "content": "url is array of two Link objects",
    "attachment": {
      "type": "Image",
      "url": [
        {
          "type": "Link",
          "href": "http://pasture-one-actor/images/007.png",
          "mediaType": "image/png"
        },
        {
          "type": "Link",
          "href": "http://pasture-one-actor/images/008.jpg",
          "mediaType": "image/jpeg"
        }
      ]
    }
  }
}
misskey
{
  "id": "a9zmaj3cgluj0038",
  "createdAt": "2025-07-09T14:27:21.000Z",
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