A small tool to view real-world ActivityPub objects as JSON! Enter a URL
or username from Mastodon or a similar service below, and we'll send a
request with
the right
Accept
header
to the server to view the underlying object.
{
"@context": [
"https://www.w3.org/ns/activitystreams",
{
"ostatus": "http://ostatus.org#",
"atomUri": "ostatus:atomUri",
"inReplyToAtomUri": "ostatus:inReplyToAtomUri",
"conversation": "ostatus:conversation",
"sensitive": "as:sensitive",
"toot": "http://joinmastodon.org/ns#",
"votersCount": "toot:votersCount",
"blurhash": "toot:blurhash",
"focalPoint": {
"@container": "@list",
"@id": "toot:focalPoint"
},
"Hashtag": "as:Hashtag"
}
],
"id": "https://sigmoid.social/users/jmlr/statuses/114411941909418771",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2025-04-27T21:01:27Z",
"url": "https://sigmoid.social/@jmlr/114411941909418771",
"attributedTo": "https://sigmoid.social/users/jmlr",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://sigmoid.social/users/jmlr/followers"
],
"sensitive": false,
"atomUri": "https://sigmoid.social/users/jmlr/statuses/114411941909418771",
"inReplyToAtomUri": null,
"conversation": "tag:sigmoid.social,2025-04-27:objectId=56424920:objectType=Conversation",
"content": "<p>'Variance-Aware Estimation of Kernel Mean Embedding', by Geoffrey Wolfer, Pierre Alquier.</p><p><a href=\"http://jmlr.org/papers/v26/23-0161.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">http://</span><span class=\"ellipsis\">jmlr.org/papers/v26/23-0161.ht</span><span class=\"invisible\">ml</span></a> <br /> <br /><a href=\"https://sigmoid.social/tags/embeddings\" class=\"mention hashtag\" rel=\"tag\">#<span>embeddings</span></a> <a href=\"https://sigmoid.social/tags/embedding\" class=\"mention hashtag\" rel=\"tag\">#<span>embedding</span></a> <a href=\"https://sigmoid.social/tags/empirical\" class=\"mention hashtag\" rel=\"tag\">#<span>empirical</span></a></p>",
"contentMap": {
"en": "<p>'Variance-Aware Estimation of Kernel Mean Embedding', by Geoffrey Wolfer, Pierre Alquier.</p><p><a href=\"http://jmlr.org/papers/v26/23-0161.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">http://</span><span class=\"ellipsis\">jmlr.org/papers/v26/23-0161.ht</span><span class=\"invisible\">ml</span></a> <br /> <br /><a href=\"https://sigmoid.social/tags/embeddings\" class=\"mention hashtag\" rel=\"tag\">#<span>embeddings</span></a> <a href=\"https://sigmoid.social/tags/embedding\" class=\"mention hashtag\" rel=\"tag\">#<span>embedding</span></a> <a href=\"https://sigmoid.social/tags/empirical\" class=\"mention hashtag\" rel=\"tag\">#<span>empirical</span></a></p>"
},
"attachment": [
{
"type": "Document",
"mediaType": "image/png",
"url": "https://cdn.masto.host/sigmoidsocial/media_attachments/files/114/411/941/851/982/998/original/dcb2e799988d4d1f.png",
"name": null,
"blurhash": "U9SF;Lt7~q?b~qayIUay-;j[M{ayM{t7%MWB",
"width": 1275,
"height": 1650
}
],
"tag": [
{
"type": "Hashtag",
"href": "https://sigmoid.social/tags/embeddings",
"name": "#embeddings"
},
{
"type": "Hashtag",
"href": "https://sigmoid.social/tags/embedding",
"name": "#embedding"
},
{
"type": "Hashtag",
"href": "https://sigmoid.social/tags/empirical",
"name": "#empirical"
}
],
"replies": {
"id": "https://sigmoid.social/users/jmlr/statuses/114411941909418771/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://sigmoid.social/users/jmlr/statuses/114411941909418771/replies?only_other_accounts=true&page=true",
"partOf": "https://sigmoid.social/users/jmlr/statuses/114411941909418771/replies",
"items": []
}
},
"likes": {
"id": "https://sigmoid.social/users/jmlr/statuses/114411941909418771/likes",
"type": "Collection",
"totalItems": 2
},
"shares": {
"id": "https://sigmoid.social/users/jmlr/statuses/114411941909418771/shares",
"type": "Collection",
"totalItems": 1
}
}