ActivityPub Viewer

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.

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{ "@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/113992932906258506", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-02-12T21:01:57Z", "url": "https://sigmoid.social/@jmlr/113992932906258506", "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/113992932906258506", "inReplyToAtomUri": null, "conversation": "tag:sigmoid.social,2025-02-12:objectId=51076524:objectType=Conversation", "content": "<p>&#39;Deep Out-of-Distribution Uncertainty Quantification via Weight Entropy Maximization&#39;, by Antoine de Mathelin, François Deheeger, Mathilde Mougeot, Nicolas Vayatis.</p><p><a href=\"http://jmlr.org/papers/v26/23-1359.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">http://</span><span class=\"ellipsis\">jmlr.org/papers/v26/23-1359.ht</span><span class=\"invisible\">ml</span></a> <br /> <br /><a href=\"https://sigmoid.social/tags/regularization\" class=\"mention hashtag\" rel=\"tag\">#<span>regularization</span></a> <a href=\"https://sigmoid.social/tags/entropy\" class=\"mention hashtag\" rel=\"tag\">#<span>entropy</span></a> <a href=\"https://sigmoid.social/tags/gaussian\" class=\"mention hashtag\" rel=\"tag\">#<span>gaussian</span></a></p>", "contentMap": { "en": "<p>&#39;Deep Out-of-Distribution Uncertainty Quantification via Weight Entropy Maximization&#39;, by Antoine de Mathelin, François Deheeger, Mathilde Mougeot, Nicolas Vayatis.</p><p><a href=\"http://jmlr.org/papers/v26/23-1359.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">http://</span><span class=\"ellipsis\">jmlr.org/papers/v26/23-1359.ht</span><span class=\"invisible\">ml</span></a> <br /> <br /><a href=\"https://sigmoid.social/tags/regularization\" class=\"mention hashtag\" rel=\"tag\">#<span>regularization</span></a> <a href=\"https://sigmoid.social/tags/entropy\" class=\"mention hashtag\" rel=\"tag\">#<span>entropy</span></a> <a href=\"https://sigmoid.social/tags/gaussian\" class=\"mention hashtag\" rel=\"tag\">#<span>gaussian</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://cdn.masto.host/sigmoidsocial/media_attachments/files/113/992/932/783/993/260/original/304e18e65a073981.png", "name": null, "blurhash": "UERysgt7~q%M?bj[RjWB-;j[M{ayt7j[ofof", "width": 1275, "height": 1650 } ], "tag": [ { "type": "Hashtag", "href": "https://sigmoid.social/tags/regularization", "name": "#regularization" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/Entropy", "name": "#Entropy" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/gaussian", "name": "#gaussian" } ], "replies": { "id": "https://sigmoid.social/users/jmlr/statuses/113992932906258506/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://sigmoid.social/users/jmlr/statuses/113992932906258506/replies?only_other_accounts=true&page=true", "partOf": "https://sigmoid.social/users/jmlr/statuses/113992932906258506/replies", "items": [] } }, "likes": { "id": "https://sigmoid.social/users/jmlr/statuses/113992932906258506/likes", "type": "Collection", "totalItems": 2 }, "shares": { "id": "https://sigmoid.social/users/jmlr/statuses/113992932906258506/shares", "type": "Collection", "totalItems": 0 } }