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://rss-mstdn.studiofreesia.com/users/ycombinator/statuses/114353479552582792", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-04-17T13:13:43Z", "url": "https://rss-mstdn.studiofreesia.com/@ycombinator/114353479552582792", "attributedTo": "https://rss-mstdn.studiofreesia.com/users/ycombinator", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://rss-mstdn.studiofreesia.com/users/ycombinator/followers" ], "sensitive": false, "atomUri": "https://rss-mstdn.studiofreesia.com/users/ycombinator/statuses/114353479552582792", "inReplyToAtomUri": null, "conversation": "tag:rss-mstdn.studiofreesia.com,2025-04-17:objectId=13302065:objectType=Conversation", "content": "<p>An Intro to DeepSeek&#39;s Distributed File System<br /><a href=\"https://maknee.github.io/blog/2025/3FS-Performance-Journal-1/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">maknee.github.io/blog/2025/3FS</span><span class=\"invisible\">-Performance-Journal-1/</span></a><br /><a href=\"https://rss-mstdn.studiofreesia.com/tags/ycombinator\" class=\"mention hashtag\" rel=\"tag\">#<span>ycombinator</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/systems\" class=\"mention hashtag\" rel=\"tag\">#<span>systems</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/gpu\" class=\"mention hashtag\" rel=\"tag\">#<span>gpu</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/blog\" class=\"mention hashtag\" rel=\"tag\">#<span>blog</span></a></p>", "contentMap": { "ja": "<p>An Intro to DeepSeek&#39;s Distributed File System<br /><a href=\"https://maknee.github.io/blog/2025/3FS-Performance-Journal-1/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">maknee.github.io/blog/2025/3FS</span><span class=\"invisible\">-Performance-Journal-1/</span></a><br /><a href=\"https://rss-mstdn.studiofreesia.com/tags/ycombinator\" class=\"mention hashtag\" rel=\"tag\">#<span>ycombinator</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/systems\" class=\"mention hashtag\" rel=\"tag\">#<span>systems</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/gpu\" class=\"mention hashtag\" rel=\"tag\">#<span>gpu</span></a> <a href=\"https://rss-mstdn.studiofreesia.com/tags/blog\" class=\"mention hashtag\" rel=\"tag\">#<span>blog</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://rss-mstdn.studiofreesia.com/tags/ycombinator", "name": "#ycombinator" }, { "type": "Hashtag", "href": "https://rss-mstdn.studiofreesia.com/tags/systems", "name": "#systems" }, { "type": "Hashtag", "href": "https://rss-mstdn.studiofreesia.com/tags/gpu", "name": "#gpu" }, { "type": "Hashtag", "href": "https://rss-mstdn.studiofreesia.com/tags/blog", "name": "#blog" } ], "replies": { "id": "https://rss-mstdn.studiofreesia.com/users/ycombinator/statuses/114353479552582792/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://rss-mstdn.studiofreesia.com/users/ycombinator/statuses/114353479552582792/replies?only_other_accounts=true&page=true", "partOf": "https://rss-mstdn.studiofreesia.com/users/ycombinator/statuses/114353479552582792/replies", "items": [] } } }