Varying the value of the @context property

Example 1: list of AP context

Activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams"
  ],
  "actor": "http://host.test/some/actor",
  "cc": [],
  "id": "http://host.test/activities/8JyHAAg-34I5CIcT",
  "object": {
    "@context": [
      "https://www.w3.org/ns/activitystreams"
    ],
    "attributedTo": "http://host.test/some/actor",
    "cc": [],
    "content": "text",
    "id": "http://host.test/objects/XMp7tcGfxKHpp9jZ",
    "published": "2026-04-14T07:48:43Z",
    "tag": [
      {
        "href": "http://other.test/some/actor",
        "type": "Mention"
      }
    ],
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://other.test/some/actor"
    ],
    "type": "Note"
  },
  "published": "2026-04-14T07:48:43Z",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://other.test/some/actor"
  ],
  "type": "Create"
}

Object

{
  "@context": [
    "https://www.w3.org/ns/activitystreams"
  ],
  "attributedTo": "http://host.test/some/actor",
  "cc": [],
  "content": "text",
  "id": "http://host.test/objects/XMp7tcGfxKHpp9jZ",
  "published": "2026-04-14T07:48:43Z",
  "tag": [
    {
      "href": "http://other.test/some/actor",
      "type": "Mention"
    }
  ],
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://other.test/some/actor"
  ],
  "type": "Note"
}

Example 2: AP context

Activity

{
  "@context": "https://www.w3.org/ns/activitystreams",
  "actor": "http://host.test/some/actor",
  "cc": [],
  "id": "http://host.test/activities/Waqjf2jn7IBJSq_o",
  "object": {
    "@context": [
      "https://www.w3.org/ns/activitystreams"
    ],
    "attributedTo": "http://host.test/some/actor",
    "cc": [],
    "content": "text",
    "id": "http://host.test/objects/xA5Kr6w1DxDx-VVt",
    "published": "2026-04-14T07:48:43Z",
    "tag": [
      {
        "href": "http://other.test/some/actor",
        "type": "Mention"
      }
    ],
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://other.test/some/actor"
    ],
    "type": "Note"
  },
  "published": "2026-04-14T07:48:43Z",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://other.test/some/actor"
  ],
  "type": "Create"
}

Object

{
  "@context": [
    "https://www.w3.org/ns/activitystreams"
  ],
  "attributedTo": "http://host.test/some/actor",
  "cc": [],
  "content": "text",
  "id": "http://host.test/objects/xA5Kr6w1DxDx-VVt",
  "published": "2026-04-14T07:48:43Z",
  "tag": [
    {
      "href": "http://other.test/some/actor",
      "type": "Mention"
    }
  ],
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://other.test/some/actor"
  ],
  "type": "Note"
}

Example 3: list of AP context and dictionary

Activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag"
    }
  ],
  "actor": "http://host.test/some/actor",
  "cc": [],
  "id": "http://host.test/activities/YdXzfkAc4NlMZSD5",
  "object": {
    "@context": [
      "https://www.w3.org/ns/activitystreams"
    ],
    "attributedTo": "http://host.test/some/actor",
    "cc": [],
    "content": "text",
    "id": "http://host.test/objects/h3fhFE5NQd9j0cku",
    "published": "2026-04-14T07:48:43Z",
    "tag": [
      {
        "href": "http://other.test/some/actor",
        "type": "Mention"
      }
    ],
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://other.test/some/actor"
    ],
    "type": "Note"
  },
  "published": "2026-04-14T07:48:43Z",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://other.test/some/actor"
  ],
  "type": "Create"
}

Object

{
  "@context": [
    "https://www.w3.org/ns/activitystreams"
  ],
  "attributedTo": "http://host.test/some/actor",
  "cc": [],
  "content": "text",
  "id": "http://host.test/objects/h3fhFE5NQd9j0cku",
  "published": "2026-04-14T07:48:43Z",
  "tag": [
    {
      "href": "http://other.test/some/actor",
      "type": "Mention"
    }
  ],
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://other.test/some/actor"
  ],
  "type": "Note"
}

Example 4: list of dictionary and AP context

Activity

{
  "@context": [
    {
      "Hashtag": "as:Hashtag"
    },
    "https://www.w3.org/ns/activitystreams"
  ],
  "actor": "http://host.test/some/actor",
  "cc": [],
  "id": "http://host.test/activities/RJVGjL0gjhylIqj2",
  "object": {
    "@context": [
      "https://www.w3.org/ns/activitystreams"
    ],
    "attributedTo": "http://host.test/some/actor",
    "cc": [],
    "content": "text",
    "id": "http://host.test/objects/1971JQ06_ul8UxgB",
    "published": "2026-04-14T07:48:43Z",
    "tag": [
      {
        "href": "http://other.test/some/actor",
        "type": "Mention"
      }
    ],
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://other.test/some/actor"
    ],
    "type": "Note"
  },
  "published": "2026-04-14T07:48:43Z",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://other.test/some/actor"
  ],
  "type": "Create"
}

Object

{
  "@context": [
    "https://www.w3.org/ns/activitystreams"
  ],
  "attributedTo": "http://host.test/some/actor",
  "cc": [],
  "content": "text",
  "id": "http://host.test/objects/1971JQ06_ul8UxgB",
  "published": "2026-04-14T07:48:43Z",
  "tag": [
    {
      "href": "http://other.test/some/actor",
      "type": "Mention"
    }
  ],
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://other.test/some/actor"
  ],
  "type": "Note"
}

Example 5: list of AP context and other url

Activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    "https://w3id.org/security/data-integrity/v2"
  ],
  "actor": "http://host.test/some/actor",
  "cc": [],
  "id": "http://host.test/activities/5jjtX7murL6eFwKL",
  "object": {
    "@context": [
      "https://www.w3.org/ns/activitystreams"
    ],
    "attributedTo": "http://host.test/some/actor",
    "cc": [],
    "content": "text",
    "id": "http://host.test/objects/hX5I4AhPEaobAA3t",
    "published": "2026-04-14T07:48:43Z",
    "tag": [
      {
        "href": "http://other.test/some/actor",
        "type": "Mention"
      }
    ],
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://other.test/some/actor"
    ],
    "type": "Note"
  },
  "published": "2026-04-14T07:48:43Z",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://other.test/some/actor"
  ],
  "type": "Create"
}

Object

{
  "@context": [
    "https://www.w3.org/ns/activitystreams"
  ],
  "attributedTo": "http://host.test/some/actor",
  "cc": [],
  "content": "text",
  "id": "http://host.test/objects/hX5I4AhPEaobAA3t",
  "published": "2026-04-14T07:48:43Z",
  "tag": [
    {
      "href": "http://other.test/some/actor",
      "type": "Mention"
    }
  ],
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://other.test/some/actor"
  ],
  "type": "Note"
}

Example 6: list of other url and AP context

Activity

{
  "@context": [
    "https://w3id.org/security/data-integrity/v2",
    "https://www.w3.org/ns/activitystreams"
  ],
  "actor": "http://host.test/some/actor",
  "cc": [],
  "id": "http://host.test/activities/WfV8ysHxMAwBPtrc",
  "object": {
    "@context": [
      "https://www.w3.org/ns/activitystreams"
    ],
    "attributedTo": "http://host.test/some/actor",
    "cc": [],
    "content": "text",
    "id": "http://host.test/objects/F_vzY6wjmMHDVpk-",
    "published": "2026-04-14T07:48:43Z",
    "tag": [
      {
        "href": "http://other.test/some/actor",
        "type": "Mention"
      }
    ],
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://other.test/some/actor"
    ],
    "type": "Note"
  },
  "published": "2026-04-14T07:48:43Z",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://other.test/some/actor"
  ],
  "type": "Create"
}

Object

{
  "@context": [
    "https://www.w3.org/ns/activitystreams"
  ],
  "attributedTo": "http://host.test/some/actor",
  "cc": [],
  "content": "text",
  "id": "http://host.test/objects/F_vzY6wjmMHDVpk-",
  "published": "2026-04-14T07:48:43Z",
  "tag": [
    {
      "href": "http://other.test/some/actor",
      "type": "Mention"
    }
  ],
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://other.test/some/actor"
  ],
  "type": "Note"
}