Object types

Varying the object type and investigation what happens to the properties. Relevant properties are

{
    "@context": "https://www.w3.org/ns/activitystreams",
    "type": "${type}",
    "name": "name",
    "summary": "summary",
    "content": "content"
}

where type is the property being varied between different entries in the table. Object types are defined in https://www.w3.org/TR/activitystreams-vocabulary/#object-types.

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://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/mACYNhLWet0",
  "published": "2025-10-04T08:08:22Z",
  "object": {
    "type": "Article",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/qoVO2pfV3ps",
    "published": "2025-10-04T08:08:22Z",
    "name": "name",
    "summary": "summary",
    "content": "content",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

hollo

{
  "id": "0199ae43-c8f0-754a-9a3a-a4658bfe1af7",
  "created_at": "2025-10-04T08:08:22.000Z",
  "in_reply_to_id": null,
  "sensitive": false,
  "spoiler_text": "summary",
  "visibility": "public",
  "language": null,
  "uri": "http://pasture-one-actor/object/qoVO2pfV3ps",
  "url": "http://pasture-one-actor/object/qoVO2pfV3ps",
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "favourited": false,
  "reblogged": false,
  "muted": false,
  "bookmarked": false,
  "pinned": false,
  "content": "content",
  "reblog": null,
  "quote_id": null,
  "quote": null,
  "application": null,
  "account": {
    "id": "0199ae3f-e3fb-73d9-9904-8e8466c68280",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "bot": false,
    "created_at": "2025-10-04T08:04:06.722Z",
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "avatar": "http://hollo/image/avatars/original/missing.png",
    "avatar_static": "http://hollo/image/avatars/original/missing.png",
    "header": "http://hollo/image/headers/original/missing.png",
    "header_static": "http://hollo/image/headers/original/missing.png",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 0,
    "moved": null,
    "last_status_at": null,
    "emojis": [],
    "fields": []
  },
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "emojis": [],
  "emoji_reactions": [],
  "poll": null,
  "filtered": null
}

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://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/qlELIV6UmNM",
  "published": "2025-10-04T08:08:23Z",
  "object": {
    "type": "Audio",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/Rg5lJb5HeQw",
    "published": "2025-10-04T08:08:23Z",
    "name": "name",
    "summary": "summary",
    "content": "content",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

no result

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://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/IEKCim8rwPE",
  "published": "2025-10-04T08:08:35Z",
  "object": {
    "type": "Document",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/Y5rIhaRM8HY",
    "published": "2025-10-04T08:08:35Z",
    "name": "name",
    "summary": "summary",
    "content": "content",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

no result

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://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/xqihz3SHQvE",
  "published": "2025-10-04T08:08:47Z",
  "object": {
    "type": "Event",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/utorj3UaSIA",
    "published": "2025-10-04T08:08:47Z",
    "name": "name",
    "summary": "summary",
    "content": "content",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

no result

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://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/vyq8xcFpvh0",
  "published": "2025-10-04T08:08:59Z",
  "object": {
    "type": "Image",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/k0noOKRADbY",
    "published": "2025-10-04T08:08:59Z",
    "name": "name",
    "summary": "summary",
    "content": "content",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

no result

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://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/7tyW3r0RykM",
  "published": "2025-10-04T08:09:11Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/78YuYDrPJ8M",
    "published": "2025-10-04T08:09:11Z",
    "name": "name",
    "summary": "summary",
    "content": "content",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

hollo

{
  "id": "0199ae44-8858-7636-bde4-accf478325f3",
  "created_at": "2025-10-04T08:09:11.000Z",
  "in_reply_to_id": null,
  "sensitive": false,
  "spoiler_text": "summary",
  "visibility": "public",
  "language": null,
  "uri": "http://pasture-one-actor/object/78YuYDrPJ8M",
  "url": "http://pasture-one-actor/object/78YuYDrPJ8M",
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "favourited": false,
  "reblogged": false,
  "muted": false,
  "bookmarked": false,
  "pinned": false,
  "content": "content",
  "reblog": null,
  "quote_id": null,
  "quote": null,
  "application": null,
  "account": {
    "id": "0199ae3f-e3fb-73d9-9904-8e8466c68280",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "bot": false,
    "created_at": "2025-10-04T08:04:06.722Z",
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "avatar": "http://hollo/image/avatars/original/missing.png",
    "avatar_static": "http://hollo/image/avatars/original/missing.png",
    "header": "http://hollo/image/headers/original/missing.png",
    "header_static": "http://hollo/image/headers/original/missing.png",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 0,
    "moved": null,
    "last_status_at": null,
    "emojis": [],
    "fields": []
  },
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "emojis": [],
  "emoji_reactions": [],
  "poll": null,
  "filtered": null
}

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://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/_zQUtjDrixM",
  "published": "2025-10-04T08:09:12Z",
  "object": {
    "type": "Page",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/oiSLfEFnht4",
    "published": "2025-10-04T08:09:12Z",
    "name": "name",
    "summary": "summary",
    "content": "content",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

no result

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://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/IsKiuAXc5ik",
  "published": "2025-10-04T08:09:24Z",
  "object": {
    "type": "Place",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/28g7cy7vn_U",
    "published": "2025-10-04T08:09:24Z",
    "name": "name",
    "summary": "summary",
    "content": "content",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

no result

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://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/vO8JUg4nE10",
  "published": "2025-10-04T08:09:36Z",
  "object": {
    "type": "Profile",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/o-ScQGqk804",
    "published": "2025-10-04T08:09:36Z",
    "name": "name",
    "summary": "summary",
    "content": "content",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

no result

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://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/8hxgRyFmAk4",
  "published": "2025-10-04T08:09:48Z",
  "object": {
    "type": "Relationship",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/vg0QN2SLh2w",
    "published": "2025-10-04T08:09:48Z",
    "name": "name",
    "summary": "summary",
    "content": "content",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

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://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/rRT7rl5Ervo",
  "published": "2025-10-04T08:10:00Z",
  "object": {
    "type": "Tombstone",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/BKT0aLNTWmQ",
    "published": "2025-10-04T08:10:00Z",
    "name": "name",
    "summary": "summary",
    "content": "content",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

no result

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://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/ns-AqC0JnL0",
  "published": "2025-10-04T08:10:12Z",
  "object": {
    "type": "Video",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/e50_4eyUcLU",
    "published": "2025-10-04T08:10:12Z",
    "name": "name",
    "summary": "summary",
    "content": "content",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

no result

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://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/UBSH5adsIRs",
  "published": "2025-10-04T08:10:24Z",
  "object": {
    "type": [
      "Note",
      "Article"
    ],
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/eXWvVPBPeJw",
    "published": "2025-10-04T08:10:24Z",
    "name": "name",
    "summary": "summary",
    "content": "content",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

hollo

{
  "id": "0199ae45-a580-7224-a8b7-ccdbea2ea55e",
  "created_at": "2025-10-04T08:10:24.000Z",
  "in_reply_to_id": null,
  "sensitive": false,
  "spoiler_text": "summary",
  "visibility": "public",
  "language": null,
  "uri": "http://pasture-one-actor/object/eXWvVPBPeJw",
  "url": "http://pasture-one-actor/object/eXWvVPBPeJw",
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "favourited": false,
  "reblogged": false,
  "muted": false,
  "bookmarked": false,
  "pinned": false,
  "content": "content",
  "reblog": null,
  "quote_id": null,
  "quote": null,
  "application": null,
  "account": {
    "id": "0199ae3f-e3fb-73d9-9904-8e8466c68280",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "bot": false,
    "created_at": "2025-10-04T08:04:06.722Z",
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "avatar": "http://hollo/image/avatars/original/missing.png",
    "avatar_static": "http://hollo/image/avatars/original/missing.png",
    "header": "http://hollo/image/headers/original/missing.png",
    "header_static": "http://hollo/image/headers/original/missing.png",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 0,
    "moved": null,
    "last_status_at": null,
    "emojis": [],
    "fields": []
  },
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "emojis": [],
  "emoji_reactions": [],
  "poll": null,
  "filtered": null
}

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://hollo/@john"
  ],
  "id": "http://pasture-one-actor/activity/yANvmscjzmk",
  "published": "2025-10-04T08:10:25Z",
  "object": {
    "type": null,
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://hollo/@john"
    ],
    "id": "http://pasture-one-actor/object/S4zbn67APvg",
    "published": "2025-10-04T08:10:25Z",
    "name": "name",
    "summary": "summary",
    "content": "content",
    "tag": [
      {
        "type": "Mention",
        "href": "http://hollo/@john"
      }
    ]
  }
}

no result