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://mathstodon.xyz/users/AmenZwa/statuses/112549492387811607", "type": "Note", "summary": null, "inReplyTo": null, "published": "2024-06-02T22:56:03Z", "url": "https://mathstodon.xyz/@AmenZwa/112549492387811607", "attributedTo": "https://mathstodon.xyz/users/AmenZwa", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/AmenZwa/followers" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/AmenZwa/statuses/112549492387811607", "inReplyToAtomUri": null, "conversation": "tag:mathstodon.xyz,2024-06-02:objectId=99775268:objectType=Conversation", "content": "<p><a href=\"https://mathstodon.xyz/tags/MultiTarget\" class=\"mention hashtag\" rel=\"tag\">#<span>MultiTarget</span></a> tracking airborne <a href=\"https://mathstodon.xyz/tags/radar\" class=\"mention hashtag\" rel=\"tag\">#<span>radar</span></a> systems have been implemented using traditional <a href=\"https://mathstodon.xyz/tags/statistical\" class=\"mention hashtag\" rel=\"tag\">#<span>statistical</span></a> techniques. Blackman&#39;s 1986 textbook is the leading publication on this subject.</p><p>Multi-target tracking is a sophisticated application of the fundamental idea behind the 1960s <a href=\"https://mathstodon.xyz/tags/Kalman\" class=\"mention hashtag\" rel=\"tag\">#<span>Kalman</span></a> filter—sequence prediction—which began with the 1900s <a href=\"https://mathstodon.xyz/tags/Markov\" class=\"mention hashtag\" rel=\"tag\">#<span>Markov</span></a> chain. In the 2020s, <a href=\"https://mathstodon.xyz/tags/LLMs\" class=\"mention hashtag\" rel=\"tag\">#<span>LLMs</span></a> are perhaps the most appropriate technique for solving this age-old, tough problem.</p>", "contentMap": { "en": "<p><a href=\"https://mathstodon.xyz/tags/MultiTarget\" class=\"mention hashtag\" rel=\"tag\">#<span>MultiTarget</span></a> tracking airborne <a href=\"https://mathstodon.xyz/tags/radar\" class=\"mention hashtag\" rel=\"tag\">#<span>radar</span></a> systems have been implemented using traditional <a href=\"https://mathstodon.xyz/tags/statistical\" class=\"mention hashtag\" rel=\"tag\">#<span>statistical</span></a> techniques. Blackman&#39;s 1986 textbook is the leading publication on this subject.</p><p>Multi-target tracking is a sophisticated application of the fundamental idea behind the 1960s <a href=\"https://mathstodon.xyz/tags/Kalman\" class=\"mention hashtag\" rel=\"tag\">#<span>Kalman</span></a> filter—sequence prediction—which began with the 1900s <a href=\"https://mathstodon.xyz/tags/Markov\" class=\"mention hashtag\" rel=\"tag\">#<span>Markov</span></a> chain. In the 2020s, <a href=\"https://mathstodon.xyz/tags/LLMs\" class=\"mention hashtag\" rel=\"tag\">#<span>LLMs</span></a> are perhaps the most appropriate technique for solving this age-old, tough problem.</p>" }, "updated": "2024-06-02T23:13:37Z", "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/markov", "name": "#markov" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/kalman", "name": "#kalman" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/LLMs", "name": "#LLMs" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/statistical", "name": "#statistical" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/radar", "name": "#radar" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/MultiTarget", "name": "#MultiTarget" } ], "replies": { "id": "https://mathstodon.xyz/users/AmenZwa/statuses/112549492387811607/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/AmenZwa/statuses/112549492387811607/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/AmenZwa/statuses/112549492387811607/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/AmenZwa/statuses/112549492387811607/likes", "type": "Collection", "totalItems": 3 }, "shares": { "id": "https://mathstodon.xyz/users/AmenZwa/statuses/112549492387811607/shares", "type": "Collection", "totalItems": 0 } }