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://mathstodon.xyz/users/eMuleNews/statuses/114450221960621854", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-05-04T15:16:35Z", "url": "https://mathstodon.xyz/@eMuleNews/114450221960621854", "attributedTo": "https://mathstodon.xyz/users/eMuleNews", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/eMuleNews/followers" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/eMuleNews/statuses/114450221960621854", "inReplyToAtomUri": null, "conversation": "tag:mathstodon.xyz,2025-05-04:objectId=151571347:objectType=Conversation", "content": "<p><a href=\"https://mathstodon.xyz/tags/arXiv\" class=\"mention hashtag\" rel=\"tag\">#<span>arXiv</span></a> Quantifying the Fermi paradox via passive SETI: a general framework <a href=\"https://arxiv.org/abs/2505.00062\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">arxiv.org/abs/2505.00062</span><span class=\"invisible\"></span></a> “computing the probability of at least one detection of an extraterrestrial electromagnetic signal of galactic origin, as a function of the number N of communicative civilizations.”</p>", "contentMap": { "es": "<p><a href=\"https://mathstodon.xyz/tags/arXiv\" class=\"mention hashtag\" rel=\"tag\">#<span>arXiv</span></a> Quantifying the Fermi paradox via passive SETI: a general framework <a href=\"https://arxiv.org/abs/2505.00062\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">arxiv.org/abs/2505.00062</span><span class=\"invisible\"></span></a> “computing the probability of at least one detection of an extraterrestrial electromagnetic signal of galactic origin, as a function of the number N of communicative civilizations.”</p>" }, "attachment": [ { "type": "Document", "mediaType": "image/jpeg", "url": "https://media.mathstodon.xyz/media_attachments/files/114/450/221/922/356/688/original/46c7449df2fbf18f.jpg", "name": null, "blurhash": "U2S?DV?vRQxbOSImn,sq^,9sk8%3^,%N9Yob", "width": 1920, "height": 1269 } ], "tag": [ { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/arxiv", "name": "#arxiv" } ], "replies": { "id": "https://mathstodon.xyz/users/eMuleNews/statuses/114450221960621854/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/eMuleNews/statuses/114450221960621854/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/eMuleNews/statuses/114450221960621854/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/eMuleNews/statuses/114450221960621854/likes", "type": "Collection", "totalItems": 0 }, "shares": { "id": "https://mathstodon.xyz/users/eMuleNews/statuses/114450221960621854/shares", "type": "Collection", "totalItems": 1 } }