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/nilesjohnson/collections/featured", "type": "OrderedCollection", "totalItems": 1, "orderedItems": [ { "id": "https://mathstodon.xyz/users/nilesjohnson/statuses/108199228608395616", "type": "Note", "summary": null, "inReplyTo": null, "published": "2022-04-26T16:06:46Z", "url": "https://mathstodon.xyz/@nilesjohnson/108199228608395616", "attributedTo": "https://mathstodon.xyz/users/nilesjohnson", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/nilesjohnson/followers" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/nilesjohnson/statuses/108199228608395616", "inReplyToAtomUri": null, "conversation": "tag:mathstodon.xyz,2022-04-26:objectId=24730003:objectType=Conversation", "content": "<p>I appreciate the <a href=\"https://mathstodon.xyz/tags/introduction\" class=\"mention hashtag\" rel=\"tag\">#<span>introduction</span></a> posts that people are writing! But I don&#39;t like writing my own!! Anyway, I&#39;ll try.</p><p>I&#39;m a research mathematician, interested in social media for both professional and recreational reasons. If you follow me, you&#39;ll see a mix of math and non-math.</p><p>Here are four pictures of things I&#39;ve been involved in. I&#39;ll add a little more in a comment below.</p>", "contentMap": { "en": "<p>I appreciate the <a href=\"https://mathstodon.xyz/tags/introduction\" class=\"mention hashtag\" rel=\"tag\">#<span>introduction</span></a> posts that people are writing! But I don&#39;t like writing my own!! Anyway, I&#39;ll try.</p><p>I&#39;m a research mathematician, interested in social media for both professional and recreational reasons. If you follow me, you&#39;ll see a mix of math and non-math.</p><p>Here are four pictures of things I&#39;ve been involved in. I&#39;ll add a little more in a comment below.</p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://media.mathstodon.xyz/media_attachments/files/108/199/164/050/021/690/original/500da8d5e9ea675d.png", "name": "Screenshot from the wikipedia page for the Hopf fibration, showing an image I made that is featured there. The image shows three layers of the Hopf fibration, corresponding to three bands on the base sphere. They are rainbow candy colored.", "blurhash": "UFR3TZtQ%14o-pM{xtRQ~pIB9Z_2?aRQIV-:", "focalPoint": [ 0.23, 0.1 ], "width": 709, "height": 494 }, { "type": "Document", "mediaType": "image/png", "url": "https://media.mathstodon.xyz/media_attachments/files/108/199/165/738/627/221/original/e48b9c7134cba8c1.png", "name": "Screen shot from the wikipedia page for the associahedron, showing an image I made that is featured there. This image shows the front half, with vertices labeled by bracketings of the five letters a through e. Arrows for single re-associations connect the vertices.", "blurhash": "UAR{*}00M{%M%2WAj[og%2ofa#WBt6Rjj[of", "focalPoint": [ 0.22, 0.49 ], "width": 713, "height": 758 }, { "type": "Document", "mediaType": "image/png", "url": "https://media.mathstodon.xyz/media_attachments/files/108/199/166/688/302/560/original/e1c33de92a208b89.png", "name": "Cover from the book 2-Dimensional Categories, by myself and Donald Yau. The cover shows three shapes like icecream cones, with blue, green, and yellow regions. Below are some 2-categorical diagrams with the same shape, labeled as they appear in the text.", "blurhash": "UpIQS?j[bIfk}?j[azays;j[f6ayoffkjZf6", "focalPoint": [ -0.18, 0.51 ], "width": 547, "height": 822 }, { "type": "Document", "mediaType": "image/png", "url": "https://media.mathstodon.xyz/media_attachments/files/108/199/167/976/245/530/original/47af633878f3106e.png", "name": "Screen shot from pdf of the book Bimonoidal Categories... (etc) by myself and Donald Yau. The picture is a graphical representation of one of the axioms for bimonoidal structure, related to the interaction between distributive and commutative structures. There are 6 different arrangements of 12 boxes each, grouped or flipped in different ways, related to different applications of distributivity and commutativity. ", "blurhash": "U8SY~yof~Wt7DiRjtRt7ixs:ozRjNsaya#j[", "focalPoint": [ -0.38, -0.6 ], "width": 661, "height": 697 } ], "tag": [ { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/introduction", "name": "#introduction" } ], "replies": { "id": "https://mathstodon.xyz/users/nilesjohnson/statuses/108199228608395616/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/nilesjohnson/statuses/108199228608395616/replies?min_id=108199252522733018&page=true", "partOf": "https://mathstodon.xyz/users/nilesjohnson/statuses/108199228608395616/replies", "items": [ "https://mathstodon.xyz/users/nilesjohnson/statuses/108199252522733018" ] } }, "likes": { "id": "https://mathstodon.xyz/users/nilesjohnson/statuses/108199228608395616/likes", "type": "Collection", "totalItems": 25 }, "shares": { "id": "https://mathstodon.xyz/users/nilesjohnson/statuses/108199228608395616/shares", "type": "Collection", "totalItems": 10 } } ] }