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", "Hashtag": "as:Hashtag" } ], "id": "https://sigmoid.social/users/stevenaleach/collections/featured", "type": "OrderedCollection", "totalItems": 1, "orderedItems": [ { "id": "https://sigmoid.social/users/stevenaleach/statuses/114355635480544373", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-04-17T22:21:59Z", "url": "https://sigmoid.social/@stevenaleach/114355635480544373", "attributedTo": "https://sigmoid.social/users/stevenaleach", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://sigmoid.social/users/stevenaleach/followers" ], "sensitive": false, "atomUri": "https://sigmoid.social/users/stevenaleach/statuses/114355635480544373", "inReplyToAtomUri": null, "conversation": "tag:sigmoid.social,2025-04-17:objectId=55745311:objectType=Conversation", "content": "<p>I think I finally have this thing complete - the paper is live hosted on a little test node, also lives as README.md on the GitHub.</p><p><a href=\"https://idens.net/iden://z1HRUsTNcYMkN5WPm9s1YjGaLUVs58RVRHPjBrV1kYwdAJ.642/pub\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">idens.net/iden://z1HRUsTNcYMkN</span><span class=\"invisible\">5WPm9s1YjGaLUVs58RVRHPjBrV1kYwdAJ.642/pub</span></a></p><p><a href=\"https://sigmoid.social/tags/P2P\" class=\"mention hashtag\" rel=\"tag\">#<span>P2P</span></a> <a href=\"https://sigmoid.social/tags/distributed\" class=\"mention hashtag\" rel=\"tag\">#<span>distributed</span></a> <a href=\"https://sigmoid.social/tags/text\" class=\"mention hashtag\" rel=\"tag\">#<span>text</span></a> <a href=\"https://sigmoid.social/tags/smallweb\" class=\"mention hashtag\" rel=\"tag\">#<span>smallweb</span></a> <a href=\"https://sigmoid.social/tags/markdown\" class=\"mention hashtag\" rel=\"tag\">#<span>markdown</span></a> <a href=\"https://sigmoid.social/tags/data\" class=\"mention hashtag\" rel=\"tag\">#<span>data</span></a> <a href=\"https://sigmoid.social/tags/linkeddata\" class=\"mention hashtag\" rel=\"tag\">#<span>linkeddata</span></a> <a href=\"https://sigmoid.social/tags/python\" class=\"mention hashtag\" rel=\"tag\">#<span>python</span></a> <a href=\"https://sigmoid.social/tags/rust\" class=\"mention hashtag\" rel=\"tag\">#<span>rust</span></a> <a href=\"https://sigmoid.social/tags/rustlang\" class=\"mention hashtag\" rel=\"tag\">#<span>rustlang</span></a> <a href=\"https://sigmoid.social/tags/linux\" class=\"mention hashtag\" rel=\"tag\">#<span>linux</span></a> <a href=\"https://sigmoid.social/tags/unix\" class=\"mention hashtag\" rel=\"tag\">#<span>unix</span></a> <a href=\"https://sigmoid.social/tags/longread\" class=\"mention hashtag\" rel=\"tag\">#<span>longread</span></a> <a href=\"https://sigmoid.social/tags/code\" class=\"mention hashtag\" rel=\"tag\">#<span>code</span></a> <a href=\"https://sigmoid.social/tags/opensource\" class=\"mention hashtag\" rel=\"tag\">#<span>opensource</span></a> <a href=\"https://sigmoid.social/tags/helloworld\" class=\"mention hashtag\" rel=\"tag\">#<span>helloworld</span></a> <a href=\"https://sigmoid.social/tags/federation\" class=\"mention hashtag\" rel=\"tag\">#<span>federation</span></a> <a href=\"https://sigmoid.social/tags/peer2peer\" class=\"mention hashtag\" rel=\"tag\">#<span>peer2peer</span></a> <a href=\"https://sigmoid.social/tags/peerreview\" class=\"mention hashtag\" rel=\"tag\">#<span>peerreview</span></a> <a href=\"https://sigmoid.social/tags/writing\" class=\"mention hashtag\" rel=\"tag\">#<span>writing</span></a></p>", "contentMap": { "en": "<p>I think I finally have this thing complete - the paper is live hosted on a little test node, also lives as README.md on the GitHub.</p><p><a href=\"https://idens.net/iden://z1HRUsTNcYMkN5WPm9s1YjGaLUVs58RVRHPjBrV1kYwdAJ.642/pub\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">idens.net/iden://z1HRUsTNcYMkN</span><span class=\"invisible\">5WPm9s1YjGaLUVs58RVRHPjBrV1kYwdAJ.642/pub</span></a></p><p><a href=\"https://sigmoid.social/tags/P2P\" class=\"mention hashtag\" rel=\"tag\">#<span>P2P</span></a> <a href=\"https://sigmoid.social/tags/distributed\" class=\"mention hashtag\" rel=\"tag\">#<span>distributed</span></a> <a href=\"https://sigmoid.social/tags/text\" class=\"mention hashtag\" rel=\"tag\">#<span>text</span></a> <a href=\"https://sigmoid.social/tags/smallweb\" class=\"mention hashtag\" rel=\"tag\">#<span>smallweb</span></a> <a href=\"https://sigmoid.social/tags/markdown\" class=\"mention hashtag\" rel=\"tag\">#<span>markdown</span></a> <a href=\"https://sigmoid.social/tags/data\" class=\"mention hashtag\" rel=\"tag\">#<span>data</span></a> <a href=\"https://sigmoid.social/tags/linkeddata\" class=\"mention hashtag\" rel=\"tag\">#<span>linkeddata</span></a> <a href=\"https://sigmoid.social/tags/python\" class=\"mention hashtag\" rel=\"tag\">#<span>python</span></a> <a href=\"https://sigmoid.social/tags/rust\" class=\"mention hashtag\" rel=\"tag\">#<span>rust</span></a> <a href=\"https://sigmoid.social/tags/rustlang\" class=\"mention hashtag\" rel=\"tag\">#<span>rustlang</span></a> <a href=\"https://sigmoid.social/tags/linux\" class=\"mention hashtag\" rel=\"tag\">#<span>linux</span></a> <a href=\"https://sigmoid.social/tags/unix\" class=\"mention hashtag\" rel=\"tag\">#<span>unix</span></a> <a href=\"https://sigmoid.social/tags/longread\" class=\"mention hashtag\" rel=\"tag\">#<span>longread</span></a> <a href=\"https://sigmoid.social/tags/code\" class=\"mention hashtag\" rel=\"tag\">#<span>code</span></a> <a href=\"https://sigmoid.social/tags/opensource\" class=\"mention hashtag\" rel=\"tag\">#<span>opensource</span></a> <a href=\"https://sigmoid.social/tags/helloworld\" class=\"mention hashtag\" rel=\"tag\">#<span>helloworld</span></a> <a href=\"https://sigmoid.social/tags/federation\" class=\"mention hashtag\" rel=\"tag\">#<span>federation</span></a> <a href=\"https://sigmoid.social/tags/peer2peer\" class=\"mention hashtag\" rel=\"tag\">#<span>peer2peer</span></a> <a href=\"https://sigmoid.social/tags/peerreview\" class=\"mention hashtag\" rel=\"tag\">#<span>peerreview</span></a> <a href=\"https://sigmoid.social/tags/writing\" class=\"mention hashtag\" rel=\"tag\">#<span>writing</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://sigmoid.social/tags/p2p", "name": "#p2p" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/distributed", "name": "#distributed" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/text", "name": "#text" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/SmallWeb", "name": "#SmallWeb" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/markdown", "name": "#markdown" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/data", "name": "#data" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/linkeddata", "name": "#linkeddata" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/Python", "name": "#Python" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/rust", "name": "#rust" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/rustlang", "name": "#rustlang" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/linux", "name": "#linux" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/unix", "name": "#unix" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/longread", "name": "#longread" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/code", "name": "#code" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/opensource", "name": "#opensource" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/helloworld", "name": "#helloworld" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/federation", "name": "#federation" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/peer2peer", "name": "#peer2peer" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/peerreview", "name": "#peerreview" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/writing", "name": "#writing" } ], "replies": { "id": "https://sigmoid.social/users/stevenaleach/statuses/114355635480544373/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://sigmoid.social/users/stevenaleach/statuses/114355635480544373/replies?min_id=114355696988118225&page=true", "partOf": "https://sigmoid.social/users/stevenaleach/statuses/114355635480544373/replies", "items": [ "https://sigmoid.social/users/stevenaleach/statuses/114355696988118225" ] } }, "likes": { "id": "https://sigmoid.social/users/stevenaleach/statuses/114355635480544373/likes", "type": "Collection", "totalItems": 4 }, "shares": { "id": "https://sigmoid.social/users/stevenaleach/statuses/114355635480544373/shares", "type": "Collection", "totalItems": 1 } } ] }