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/de_Jong_Tom/statuses/113684227807410885", "type": "Note", "summary": null, "inReplyTo": null, "published": "2024-12-20T08:34:11Z", "url": "https://mathstodon.xyz/@de_Jong_Tom/113684227807410885", "attributedTo": "https://mathstodon.xyz/users/de_Jong_Tom", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/de_Jong_Tom/followers", "https://mathstodon.xyz/users/jacobneu", "https://mathstodon.xyz/users/andrejbauer" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/de_Jong_Tom/statuses/113684227807410885", "inReplyToAtomUri": null, "conversation": "tag:mathstodon.xyz,2024-12-20:objectId=129195147:objectType=Conversation", "content": "<p>I&#39;m pleased to announce that the Heyting Day will be held in Amsterdam on Friday 14 March 2025.</p><p>Its theme will be models of <a href=\"https://mathstodon.xyz/tags/intuitionism\" class=\"mention hashtag\" rel=\"tag\">#<span>intuitionism</span></a> and <a href=\"https://mathstodon.xyz/tags/computability\" class=\"mention hashtag\" rel=\"tag\">#<span>computability</span></a> and mark the retirement of Jaap van Oosten.</p><p>The invited speakers are:<br />- <span class=\"h-card\" translate=\"no\"><a href=\"https://mathstodon.xyz/@andrejbauer\" class=\"u-url mention\">@<span>andrejbauer</span></a></span> (Ljubljana)<br />- Andy Pitts (Cambridge)<br />- Sebastiaan Terwijn (Nijmegen)<br />- Jaap van Oosten (Utrecht)</p><p>Attendance is free. Sign up and more details here: <a href=\"https://www.knaw.nl/en/heyting-day-2025\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">knaw.nl/en/heyting-day-2025</span><span class=\"invisible\"></span></a></p><p>The attached poster is thanks to the amazing <span class=\"h-card\" translate=\"no\"><a href=\"https://mathstodon.xyz/@jacobneu\" class=\"u-url mention\">@<span>jacobneu</span></a></span>.</p>", "contentMap": { "en": "<p>I&#39;m pleased to announce that the Heyting Day will be held in Amsterdam on Friday 14 March 2025.</p><p>Its theme will be models of <a href=\"https://mathstodon.xyz/tags/intuitionism\" class=\"mention hashtag\" rel=\"tag\">#<span>intuitionism</span></a> and <a href=\"https://mathstodon.xyz/tags/computability\" class=\"mention hashtag\" rel=\"tag\">#<span>computability</span></a> and mark the retirement of Jaap van Oosten.</p><p>The invited speakers are:<br />- <span class=\"h-card\" translate=\"no\"><a href=\"https://mathstodon.xyz/@andrejbauer\" class=\"u-url mention\">@<span>andrejbauer</span></a></span> (Ljubljana)<br />- Andy Pitts (Cambridge)<br />- Sebastiaan Terwijn (Nijmegen)<br />- Jaap van Oosten (Utrecht)</p><p>Attendance is free. Sign up and more details here: <a href=\"https://www.knaw.nl/en/heyting-day-2025\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">knaw.nl/en/heyting-day-2025</span><span class=\"invisible\"></span></a></p><p>The attached poster is thanks to the amazing <span class=\"h-card\" translate=\"no\"><a href=\"https://mathstodon.xyz/@jacobneu\" class=\"u-url mention\">@<span>jacobneu</span></a></span>.</p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://media.mathstodon.xyz/media_attachments/files/113/684/205/458/522/165/original/b7a8c91786116d2a.png", "name": "", "blurhash": "U+Of}lWBj[js?Fs+off6.AWAayj[ERbdj[fk", "focalPoint": [ 0, 0.47 ], "width": 826, "height": 1169 } ], "tag": [ { "type": "Mention", "href": "https://mathstodon.xyz/users/andrejbauer", "name": "@andrejbauer" }, { "type": "Mention", "href": "https://mathstodon.xyz/users/jacobneu", "name": "@jacobneu" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/computability", "name": "#computability" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/intuitionism", "name": "#intuitionism" } ], "replies": { "id": "https://mathstodon.xyz/users/de_Jong_Tom/statuses/113684227807410885/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/de_Jong_Tom/statuses/113684227807410885/replies?min_id=114162667099303838&page=true", "partOf": "https://mathstodon.xyz/users/de_Jong_Tom/statuses/113684227807410885/replies", "items": [ "https://mathstodon.xyz/users/de_Jong_Tom/statuses/114162667099303838" ] } }, "likes": { "id": "https://mathstodon.xyz/users/de_Jong_Tom/statuses/113684227807410885/likes", "type": "Collection", "totalItems": 26 }, "shares": { "id": "https://mathstodon.xyz/users/de_Jong_Tom/statuses/113684227807410885/shares", "type": "Collection", "totalItems": 22 } }