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" } } ], "id": "https://mathstodon.xyz/users/csk/statuses/110454723575904775", "type": "Note", "summary": null, "inReplyTo": "https://mathstodon.xyz/users/csk/statuses/110454704596880414", "published": "2023-05-30T00:08:47Z", "url": "https://mathstodon.xyz/@csk/110454723575904775", "attributedTo": "https://mathstodon.xyz/users/csk", "to": [ "https://mathstodon.xyz/users/csk/followers" ], "cc": [ "https://www.w3.org/ns/activitystreams#Public" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/csk/statuses/110454723575904775", "inReplyToAtomUri": "https://mathstodon.xyz/users/csk/statuses/110454704596880414", "conversation": "tag:mathstodon.xyz,2023-05-29:objectId=52147834:objectType=Conversation", "content": "<p>After a couple of months of work, we cracked it: If you only allow yourself to tile by translations and rotations, then Tile(1,1) admits only non-periodic tilings! We call this a &quot;weakly chiral aperiodic monotile&quot; -- it&#39;s aperiodic in a reflection-free universe, but tiles periodically if you&#39;re allowed to use reflections. </p><p>The tiling is reminiscent of, but not identical to, hat tilings -- it contains a sparse population of &quot;odd&quot; tiles, which are rotated by odd multiples of 30 degrees relative to all other tiles. (5/n)</p>", "contentMap": { "en": "<p>After a couple of months of work, we cracked it: If you only allow yourself to tile by translations and rotations, then Tile(1,1) admits only non-periodic tilings! We call this a &quot;weakly chiral aperiodic monotile&quot; -- it&#39;s aperiodic in a reflection-free universe, but tiles periodically if you&#39;re allowed to use reflections. </p><p>The tiling is reminiscent of, but not identical to, hat tilings -- it contains a sparse population of &quot;odd&quot; tiles, which are rotated by odd multiples of 30 degrees relative to all other tiles. (5/n)</p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://media.mathstodon.xyz/media_attachments/files/110/454/719/433/231/469/original/e32e5174e15fe581.png", "name": "A computer-generated patch of Tile(1,1) tiles, with odd tiles shaded in green.", "blurhash": "U1R3TU%MRiod-;WAogD$?c%Mof%N?bxuoft8", "focalPoint": [ 0, 0 ], "width": 1500, "height": 1382 } ], "tag": [], "replies": { "id": "https://mathstodon.xyz/users/csk/statuses/110454723575904775/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/csk/statuses/110454723575904775/replies?min_id=110454742459648912&page=true", "partOf": "https://mathstodon.xyz/users/csk/statuses/110454723575904775/replies", "items": [ "https://mathstodon.xyz/users/csk/statuses/110454742459648912" ] } }, "likes": { "id": "https://mathstodon.xyz/users/csk/statuses/110454723575904775/likes", "type": "Collection", "totalItems": 134 }, "shares": { "id": "https://mathstodon.xyz/users/csk/statuses/110454723575904775/shares", "type": "Collection", "totalItems": 58 } }