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JSON-LD @context

Various examples the @context property can take. See here for the W3C specification, and here for what ActivityStreams says about it.

Examples

Example 1

activity
{
  "@context": "https://www.w3.org/ns/activitystreams",
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://mitra/users/admin",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/COj7MkV6uVc",
  "published": "2025-10-11T09:45:40Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://mitra/users/admin"
    ],
    "id": "http://pasture-one-actor/object/fHsDeAQAZpg",
    "published": "2025-10-11T09:45:40Z",
    "@context": "https://www.w3.org/ns/activitystreams",
    "content": "@context url as the ActivityStreams URL"
  }
}
mitra
{
  "id": "0199d2a9-667e-d5fa-32d8-377f8cd76411",
  "uri": "http://pasture-one-actor/object/fHsDeAQAZpg",
  "url": "http://pasture-one-actor/object/fHsDeAQAZpg",
  "created_at": "2025-10-11T09:45:40.000Z",
  "edited_at": null,
  "account": {
    "id": "0199d2a8-cc7f-d944-db37-dce1869ca342",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "actor_id": "http://pasture-one-actor/actor",
    "url": "http://pasture-one-actor/actor",
    "display_name": "Test Actor",
    "created_at": "2025-10-11T09:45:01.823Z",
    "note": "",
    "avatar": "http://mitra/api/v1/accounts/identicon?input=http://pasture-one-actor/actor",
    "header": "http://mitra/api/v1/accounts/identicon",
    "locked": false,
    "mention_policy": "none",
    "bot": false,
    "identity_proofs": [],
    "payment_options": [],
    "fields": [],
    "emojis": [],
    "followers_count": 0,
    "following_count": 0,
    "subscribers_count": 0,
    "statuses_count": 27,
    "source": null,
    "role": null,
    "authentication_methods": null,
    "client_config": null
  },
  "content": "@context url as the ActivityStreams URL",
  "language": null,
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "reblog": null,
  "visibility": "public",
  "sensitive": false,
  "spoiler_text": "",
  "pinned": false,
  "replies_count": 0,
  "favourites_count": 0,
  "reblogs_count": 0,
  "poll": null,
  "media_attachments": [],
  "quote": null,
  "mentions": [
    {
      "id": "0199d2a7-629a-ea91-e871-93a9f6f977b1",
      "username": "admin",
      "acct": "admin",
      "url": "http://mitra/users/admin"
    }
  ],
  "tags": [],
  "emojis": [],
  "favourited": false,
  "reblogged": false,
  "bookmarked": false,
  "pleroma": {
    "emoji_reactions": [],
    "in_reply_to_account_acct": null,
    "parent_visible": true,
    "quote": null,
    "quote_visible": true
  },
  "hidden": false,
  "ipfs_cid": null,
  "links": []
}

Example 2

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams"
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://mitra/users/admin",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/wfpHzSclV5Q",
  "published": "2025-10-11T09:45:41Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://mitra/users/admin"
    ],
    "id": "http://pasture-one-actor/object/a137N47VWlw",
    "published": "2025-10-11T09:45:41Z",
    "@context": [
      "https://www.w3.org/ns/activitystreams"
    ],
    "content": "@context url is list of ActivityStreams URL"
  }
}
mitra
{
  "id": "0199d2a9-6c5d-03af-2df0-c96d19e7ddb3",
  "uri": "http://pasture-one-actor/object/a137N47VWlw",
  "url": "http://pasture-one-actor/object/a137N47VWlw",
  "created_at": "2025-10-11T09:45:41.000Z",
  "edited_at": null,
  "account": {
    "id": "0199d2a8-cc7f-d944-db37-dce1869ca342",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "actor_id": "http://pasture-one-actor/actor",
    "url": "http://pasture-one-actor/actor",
    "display_name": "Test Actor",
    "created_at": "2025-10-11T09:45:01.823Z",
    "note": "",
    "avatar": "http://mitra/api/v1/accounts/identicon?input=http://pasture-one-actor/actor",
    "header": "http://mitra/api/v1/accounts/identicon",
    "locked": false,
    "mention_policy": "none",
    "bot": false,
    "identity_proofs": [],
    "payment_options": [],
    "fields": [],
    "emojis": [],
    "followers_count": 0,
    "following_count": 0,
    "subscribers_count": 0,
    "statuses_count": 28,
    "source": null,
    "role": null,
    "authentication_methods": null,
    "client_config": null
  },
  "content": "@context url is list of ActivityStreams URL",
  "language": null,
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "reblog": null,
  "visibility": "public",
  "sensitive": false,
  "spoiler_text": "",
  "pinned": false,
  "replies_count": 0,
  "favourites_count": 0,
  "reblogs_count": 0,
  "poll": null,
  "media_attachments": [],
  "quote": null,
  "mentions": [
    {
      "id": "0199d2a7-629a-ea91-e871-93a9f6f977b1",
      "username": "admin",
      "acct": "admin",
      "url": "http://mitra/users/admin"
    }
  ],
  "tags": [],
  "emojis": [],
  "favourited": false,
  "reblogged": false,
  "bookmarked": false,
  "pleroma": {
    "emoji_reactions": [],
    "in_reply_to_account_acct": null,
    "parent_visible": true,
    "quote": null,
    "quote_visible": true
  },
  "hidden": false,
  "ipfs_cid": null,
  "links": []
}

Example 3

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://mitra/users/admin",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/Me-1ikjdR8c",
  "published": "2025-10-11T09:45:42Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://mitra/users/admin"
    ],
    "id": "http://pasture-one-actor/object/ZfBOL14RJHI",
    "published": "2025-10-11T09:45:42Z",
    "@context": [
      "https://www.w3.org/ns/activitystreams",
      {
        "Hashtag": "as:Hashtag"
      }
    ],
    "content": "@context url is list of ActivityStreams URL and Hashtag"
  }
}
mitra
{
  "id": "0199d2a9-7238-2fea-791a-2f86777e36d7",
  "uri": "http://pasture-one-actor/object/ZfBOL14RJHI",
  "url": "http://pasture-one-actor/object/ZfBOL14RJHI",
  "created_at": "2025-10-11T09:45:42.000Z",
  "edited_at": null,
  "account": {
    "id": "0199d2a8-cc7f-d944-db37-dce1869ca342",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "actor_id": "http://pasture-one-actor/actor",
    "url": "http://pasture-one-actor/actor",
    "display_name": "Test Actor",
    "created_at": "2025-10-11T09:45:01.823Z",
    "note": "",
    "avatar": "http://mitra/api/v1/accounts/identicon?input=http://pasture-one-actor/actor",
    "header": "http://mitra/api/v1/accounts/identicon",
    "locked": false,
    "mention_policy": "none",
    "bot": false,
    "identity_proofs": [],
    "payment_options": [],
    "fields": [],
    "emojis": [],
    "followers_count": 0,
    "following_count": 0,
    "subscribers_count": 0,
    "statuses_count": 29,
    "source": null,
    "role": null,
    "authentication_methods": null,
    "client_config": null
  },
  "content": "@context url is list of ActivityStreams URL and Hashtag",
  "language": null,
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "reblog": null,
  "visibility": "public",
  "sensitive": false,
  "spoiler_text": "",
  "pinned": false,
  "replies_count": 0,
  "favourites_count": 0,
  "reblogs_count": 0,
  "poll": null,
  "media_attachments": [],
  "quote": null,
  "mentions": [
    {
      "id": "0199d2a7-629a-ea91-e871-93a9f6f977b1",
      "username": "admin",
      "acct": "admin",
      "url": "http://mitra/users/admin"
    }
  ],
  "tags": [],
  "emojis": [],
  "favourited": false,
  "reblogged": false,
  "bookmarked": false,
  "pleroma": {
    "emoji_reactions": [],
    "in_reply_to_account_acct": null,
    "parent_visible": true,
    "quote": null,
    "quote_visible": true
  },
  "hidden": false,
  "ipfs_cid": null,
  "links": []
}

Example 4

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    "https://w3id.org/fep/5711"
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://mitra/users/admin",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/CWTtvp2erv8",
  "published": "2025-10-11T09:45:44Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://mitra/users/admin"
    ],
    "id": "http://pasture-one-actor/object/oZvdI7p3hRY",
    "published": "2025-10-11T09:45:44Z",
    "@context": [
      "https://www.w3.org/ns/activitystreams",
      "https://w3id.org/fep/5711"
    ],
    "content": "@context with ActivityStreams URL + w3id-fep document"
  }
}
mitra
{
  "id": "0199d2a9-7814-d365-82d2-2da955b2f0cb",
  "uri": "http://pasture-one-actor/object/oZvdI7p3hRY",
  "url": "http://pasture-one-actor/object/oZvdI7p3hRY",
  "created_at": "2025-10-11T09:45:44.000Z",
  "edited_at": null,
  "account": {
    "id": "0199d2a8-cc7f-d944-db37-dce1869ca342",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "actor_id": "http://pasture-one-actor/actor",
    "url": "http://pasture-one-actor/actor",
    "display_name": "Test Actor",
    "created_at": "2025-10-11T09:45:01.823Z",
    "note": "",
    "avatar": "http://mitra/api/v1/accounts/identicon?input=http://pasture-one-actor/actor",
    "header": "http://mitra/api/v1/accounts/identicon",
    "locked": false,
    "mention_policy": "none",
    "bot": false,
    "identity_proofs": [],
    "payment_options": [],
    "fields": [],
    "emojis": [],
    "followers_count": 0,
    "following_count": 0,
    "subscribers_count": 0,
    "statuses_count": 30,
    "source": null,
    "role": null,
    "authentication_methods": null,
    "client_config": null
  },
  "content": "@context with ActivityStreams URL + w3id-fep document",
  "language": null,
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "reblog": null,
  "visibility": "public",
  "sensitive": false,
  "spoiler_text": "",
  "pinned": false,
  "replies_count": 0,
  "favourites_count": 0,
  "reblogs_count": 0,
  "poll": null,
  "media_attachments": [],
  "quote": null,
  "mentions": [
    {
      "id": "0199d2a7-629a-ea91-e871-93a9f6f977b1",
      "username": "admin",
      "acct": "admin",
      "url": "http://mitra/users/admin"
    }
  ],
  "tags": [],
  "emojis": [],
  "favourited": false,
  "reblogged": false,
  "bookmarked": false,
  "pleroma": {
    "emoji_reactions": [],
    "in_reply_to_account_acct": null,
    "parent_visible": true,
    "quote": null,
    "quote_visible": true
  },
  "hidden": false,
  "ipfs_cid": null,
  "links": []
}

Example 5

activity
{
  "@context": null,
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://mitra/users/admin",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/srdSzsiLEpM",
  "published": "2025-10-11T09:45:46Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://mitra/users/admin"
    ],
    "id": "http://pasture-one-actor/object/p5-JMLcaJi8",
    "published": "2025-10-11T09:45:46Z",
    "@context": null,
    "content": "no @context"
  }
}
mitra
{
  "id": "0199d2a9-7df0-fbf7-6b03-a1f46a558668",
  "uri": "http://pasture-one-actor/object/p5-JMLcaJi8",
  "url": "http://pasture-one-actor/object/p5-JMLcaJi8",
  "created_at": "2025-10-11T09:45:46.000Z",
  "edited_at": null,
  "account": {
    "id": "0199d2a8-cc7f-d944-db37-dce1869ca342",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "actor_id": "http://pasture-one-actor/actor",
    "url": "http://pasture-one-actor/actor",
    "display_name": "Test Actor",
    "created_at": "2025-10-11T09:45:01.823Z",
    "note": "",
    "avatar": "http://mitra/api/v1/accounts/identicon?input=http://pasture-one-actor/actor",
    "header": "http://mitra/api/v1/accounts/identicon",
    "locked": false,
    "mention_policy": "none",
    "bot": false,
    "identity_proofs": [],
    "payment_options": [],
    "fields": [],
    "emojis": [],
    "followers_count": 0,
    "following_count": 0,
    "subscribers_count": 0,
    "statuses_count": 31,
    "source": null,
    "role": null,
    "authentication_methods": null,
    "client_config": null
  },
  "content": "no @context",
  "language": null,
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "reblog": null,
  "visibility": "public",
  "sensitive": false,
  "spoiler_text": "",
  "pinned": false,
  "replies_count": 0,
  "favourites_count": 0,
  "reblogs_count": 0,
  "poll": null,
  "media_attachments": [],
  "quote": null,
  "mentions": [
    {
      "id": "0199d2a7-629a-ea91-e871-93a9f6f977b1",
      "username": "admin",
      "acct": "admin",
      "url": "http://mitra/users/admin"
    }
  ],
  "tags": [],
  "emojis": [],
  "favourited": false,
  "reblogged": false,
  "bookmarked": false,
  "pleroma": {
    "emoji_reactions": [],
    "in_reply_to_account_acct": null,
    "parent_visible": true,
    "quote": null,
    "quote_visible": true
  },
  "hidden": false,
  "ipfs_cid": null,
  "links": []
}

Example 6

activity
{
  "@context": "http://strange.example/context",
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://mitra/users/admin",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/tHTGJtL0o3s",
  "published": "2025-10-11T09:45:47Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://mitra/users/admin"
    ],
    "id": "http://pasture-one-actor/object/b0i_XPyOcJQ",
    "published": "2025-10-11T09:45:47Z",
    "@context": "http://strange.example/context",
    "content": "@context is a broken url"
  }
}
mitra
{
  "id": "0199d2a9-83cd-1a50-5dd6-f3945f820703",
  "uri": "http://pasture-one-actor/object/b0i_XPyOcJQ",
  "url": "http://pasture-one-actor/object/b0i_XPyOcJQ",
  "created_at": "2025-10-11T09:45:47.000Z",
  "edited_at": null,
  "account": {
    "id": "0199d2a8-cc7f-d944-db37-dce1869ca342",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "actor_id": "http://pasture-one-actor/actor",
    "url": "http://pasture-one-actor/actor",
    "display_name": "Test Actor",
    "created_at": "2025-10-11T09:45:01.823Z",
    "note": "",
    "avatar": "http://mitra/api/v1/accounts/identicon?input=http://pasture-one-actor/actor",
    "header": "http://mitra/api/v1/accounts/identicon",
    "locked": false,
    "mention_policy": "none",
    "bot": false,
    "identity_proofs": [],
    "payment_options": [],
    "fields": [],
    "emojis": [],
    "followers_count": 0,
    "following_count": 0,
    "subscribers_count": 0,
    "statuses_count": 32,
    "source": null,
    "role": null,
    "authentication_methods": null,
    "client_config": null
  },
  "content": "@context is a broken url",
  "language": null,
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "reblog": null,
  "visibility": "public",
  "sensitive": false,
  "spoiler_text": "",
  "pinned": false,
  "replies_count": 0,
  "favourites_count": 0,
  "reblogs_count": 0,
  "poll": null,
  "media_attachments": [],
  "quote": null,
  "mentions": [
    {
      "id": "0199d2a7-629a-ea91-e871-93a9f6f977b1",
      "username": "admin",
      "acct": "admin",
      "url": "http://mitra/users/admin"
    }
  ],
  "tags": [],
  "emojis": [],
  "favourited": false,
  "reblogged": false,
  "bookmarked": false,
  "pleroma": {
    "emoji_reactions": [],
    "in_reply_to_account_acct": null,
    "parent_visible": true,
    "quote": null,
    "quote_visible": true
  },
  "hidden": false,
  "ipfs_cid": null,
  "links": []
}