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.

Open in browser →
{ "@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/dmm/statuses/112401833039576824", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.org.uk/users/mkwadee/statuses/112401799578435809", "published": "2024-05-07T21:04:20Z", "url": "https://mathstodon.xyz/@dmm/112401833039576824", "attributedTo": "https://mathstodon.xyz/users/dmm", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/dmm/followers", "https://mastodon.org.uk/users/mkwadee" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/dmm/statuses/112401833039576824", "inReplyToAtomUri": "https://mastodon.org.uk/users/mkwadee/statuses/112401799578435809", "conversation": "tag:mastodon.org.uk,2024-05-07:objectId=114064129:objectType=Conversation", "content": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.org.uk/@mkwadee\" class=\"u-url mention\">@<span>mkwadee</span></a></span> </p><p>The Brachistochrone problem and its history are very cool.</p><p>I wrote a bit about it here: <a href=\"https://davidmeyer.github.io/qc/brachistochrone.pdf\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">davidmeyer.github.io/qc/brachi</span><span class=\"invisible\">stochrone.pdf</span></a>. The LaTeX source is here: <a href=\"https://www.overleaf.com/read/vpwbqqpnjywj\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">overleaf.com/read/vpwbqqpnjywj</span><span class=\"invisible\"></span></a>. As always, questions/comments/corrections/* greatly appreciated.</p><p><a href=\"https://mathstodon.xyz/tags/brachistochrone\" class=\"mention hashtag\" rel=\"tag\">#<span>brachistochrone</span></a> <a href=\"https://mathstodon.xyz/tags/physics\" class=\"mention hashtag\" rel=\"tag\">#<span>physics</span></a> <a href=\"https://mathstodon.xyz/tags/math\" class=\"mention hashtag\" rel=\"tag\">#<span>math</span></a> <a href=\"https://mathstodon.xyz/tags/maths\" class=\"mention hashtag\" rel=\"tag\">#<span>maths</span></a> <a href=\"https://mathstodon.xyz/tags/newton\" class=\"mention hashtag\" rel=\"tag\">#<span>newton</span></a> <a href=\"https://mathstodon.xyz/tags/bernoulli\" class=\"mention hashtag\" rel=\"tag\">#<span>bernoulli</span></a> <a href=\"https://mathstodon.xyz/tags/texlatex\" class=\"mention hashtag\" rel=\"tag\">#<span>texlatex</span></a> <a href=\"https://mathstodon.xyz/tags/tikz\" class=\"mention hashtag\" rel=\"tag\">#<span>tikz</span></a></p>", "contentMap": { "en": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.org.uk/@mkwadee\" class=\"u-url mention\">@<span>mkwadee</span></a></span> </p><p>The Brachistochrone problem and its history are very cool.</p><p>I wrote a bit about it here: <a href=\"https://davidmeyer.github.io/qc/brachistochrone.pdf\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">davidmeyer.github.io/qc/brachi</span><span class=\"invisible\">stochrone.pdf</span></a>. The LaTeX source is here: <a href=\"https://www.overleaf.com/read/vpwbqqpnjywj\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">overleaf.com/read/vpwbqqpnjywj</span><span class=\"invisible\"></span></a>. As always, questions/comments/corrections/* greatly appreciated.</p><p><a href=\"https://mathstodon.xyz/tags/brachistochrone\" class=\"mention hashtag\" rel=\"tag\">#<span>brachistochrone</span></a> <a href=\"https://mathstodon.xyz/tags/physics\" class=\"mention hashtag\" rel=\"tag\">#<span>physics</span></a> <a href=\"https://mathstodon.xyz/tags/math\" class=\"mention hashtag\" rel=\"tag\">#<span>math</span></a> <a href=\"https://mathstodon.xyz/tags/maths\" class=\"mention hashtag\" rel=\"tag\">#<span>maths</span></a> <a href=\"https://mathstodon.xyz/tags/newton\" class=\"mention hashtag\" rel=\"tag\">#<span>newton</span></a> <a href=\"https://mathstodon.xyz/tags/bernoulli\" class=\"mention hashtag\" rel=\"tag\">#<span>bernoulli</span></a> <a href=\"https://mathstodon.xyz/tags/texlatex\" class=\"mention hashtag\" rel=\"tag\">#<span>texlatex</span></a> <a href=\"https://mathstodon.xyz/tags/tikz\" class=\"mention hashtag\" rel=\"tag\">#<span>tikz</span></a></p>" }, "updated": "2024-05-07T21:57:11Z", "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://media.mathstodon.xyz/media_attachments/files/112/401/825/259/585/521/original/c17354323d46eeb3.png", "name": "The Brachistochrone problem", "blurhash": "U6SigQIU~pxu?vt7Rjj[D%ayxvWB%Mt7oeWB", "focalPoint": [ -0.77, 0.99 ], "width": 1296, "height": 1626 } ], "tag": [ { "type": "Mention", "href": "https://mastodon.org.uk/users/mkwadee", "name": "@mkwadee@mastodon.org.uk" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/tikz", "name": "#tikz" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/texlatex", "name": "#texlatex" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/Bernoulli", "name": "#Bernoulli" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/newton", "name": "#newton" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/maths", "name": "#maths" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/math", "name": "#math" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/physics", "name": "#physics" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/brachistochrone", "name": "#brachistochrone" } ], "replies": { "id": "https://mathstodon.xyz/users/dmm/statuses/112401833039576824/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/dmm/statuses/112401833039576824/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/dmm/statuses/112401833039576824/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/dmm/statuses/112401833039576824/likes", "type": "Collection", "totalItems": 3 }, "shares": { "id": "https://mathstodon.xyz/users/dmm/statuses/112401833039576824/shares", "type": "Collection", "totalItems": 1 } }