Attribution Format

attributedTo is defined here in the ActivityStreams Vocabulary. It allows us to tell, who authored / owns the object.

This test explores what is allowed in the field.

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/bpr5XktXNTE",
  "published": "2025-09-01T08:01:03Z",
  "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/PyFRP6gk9ek",
    "published": "2025-09-01T08:01:03Z",
    "content": "single element"
  }
}

misskey

{
  "id": "ac4e9qu03xwh003z",
  "createdAt": "2025-09-01T08:01:03.000Z",
  "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": "single element",
  "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/PyFRP6gk9ek",
  "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/5T-esoVkhDs",
  "published": "2025-09-01T08:01:04Z",
  "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/HCeveb-gfu8",
    "published": "2025-09-01T08:01:04Z",
    "content": "single element as list"
  }
}

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": [
    "http://misskey/users/ac4e509pcgy40003",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/2kPEPcq0DLs",
  "published": "2025-09-01T08:01:15Z",
  "object": {
    "type": "Note",
    "attributedTo": [
      "http://pasture-one-actor/actor",
      "http://pasture-one-actor/second"
    ],
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac4e509pcgy40003"
    ],
    "id": "http://pasture-one-actor/object/ZHEeDQQif3E",
    "published": "2025-09-01T08:01:15Z",
    "content": "two elements as list"
  }
}

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": [
    "http://misskey/users/ac4e509pcgy40003",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/PkBVLZEhp5Q",
  "published": "2025-09-01T08:01:26Z",
  "object": {
    "type": "Note",
    "attributedTo": {
      "type": "Person",
      "id": "http://pasture-one-actor/actor"
    },
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac4e509pcgy40003"
    ],
    "id": "http://pasture-one-actor/object/9w6H_CfuABc",
    "published": "2025-09-01T08:01:26Z",
    "content": "a dictionary"
  }
}

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": [
    "http://misskey/users/ac4e509pcgy40003",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/EKB16iIQRxg",
  "published": "2025-09-01T08:01:37Z",
  "object": {
    "type": "Note",
    "attributedTo": [
      {
        "type": "Person",
        "id": "http://pasture-one-actor/actor"
      }
    ],
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac4e509pcgy40003"
    ],
    "id": "http://pasture-one-actor/object/hHeTokMWMns",
    "published": "2025-09-01T08:01:37Z",
    "content": "a dictionary"
  }
}

no result