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://mastodon.social/users/h4ckernews/statuses/114056608102362113", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-02-24T02:55:24Z", "url": "https://mastodon.social/@h4ckernews/114056608102362113", "attributedTo": "https://mastodon.social/users/h4ckernews", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/h4ckernews/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/h4ckernews/statuses/114056608102362113", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-02-24:objectId=929278444:objectType=Conversation", "content": "<p>DeepSeek Open Source FlashMLA – MLA Decoding Kernel for Hopper GPUs — <a href=\"https://github.com/deepseek-ai/FlashMLA\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">github.com/deepseek-ai/FlashMLA</span><span class=\"invisible\"></span></a><br /><a href=\"https://mastodon.social/tags/HackerNews\" class=\"mention hashtag\" rel=\"tag\">#<span>HackerNews</span></a> <a href=\"https://mastodon.social/tags/DeepSeek\" class=\"mention hashtag\" rel=\"tag\">#<span>DeepSeek</span></a> <a href=\"https://mastodon.social/tags/Open\" class=\"mention hashtag\" rel=\"tag\">#<span>Open</span></a> <a href=\"https://mastodon.social/tags/Source\" class=\"mention hashtag\" rel=\"tag\">#<span>Source</span></a> <a href=\"https://mastodon.social/tags/FlashMLA\" class=\"mention hashtag\" rel=\"tag\">#<span>FlashMLA</span></a> <a href=\"https://mastodon.social/tags/MLA\" class=\"mention hashtag\" rel=\"tag\">#<span>MLA</span></a> <a href=\"https://mastodon.social/tags/Decoding\" class=\"mention hashtag\" rel=\"tag\">#<span>Decoding</span></a> <a href=\"https://mastodon.social/tags/Kernel\" class=\"mention hashtag\" rel=\"tag\">#<span>Kernel</span></a> <a href=\"https://mastodon.social/tags/for\" class=\"mention hashtag\" rel=\"tag\">#<span>for</span></a> <a href=\"https://mastodon.social/tags/Hopper\" class=\"mention hashtag\" rel=\"tag\">#<span>Hopper</span></a> <a href=\"https://mastodon.social/tags/GPUs\" class=\"mention hashtag\" rel=\"tag\">#<span>GPUs</span></a> <a href=\"https://mastodon.social/tags/GitHub\" class=\"mention hashtag\" rel=\"tag\">#<span>GitHub</span></a> <a href=\"https://mastodon.social/tags/OpenSource\" class=\"mention hashtag\" rel=\"tag\">#<span>OpenSource</span></a> <a href=\"https://mastodon.social/tags/AI\" class=\"mention hashtag\" rel=\"tag\">#<span>AI</span></a></p>", "contentMap": { "en": "<p>DeepSeek Open Source FlashMLA – MLA Decoding Kernel for Hopper GPUs — <a href=\"https://github.com/deepseek-ai/FlashMLA\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">github.com/deepseek-ai/FlashMLA</span><span class=\"invisible\"></span></a><br /><a href=\"https://mastodon.social/tags/HackerNews\" class=\"mention hashtag\" rel=\"tag\">#<span>HackerNews</span></a> <a href=\"https://mastodon.social/tags/DeepSeek\" class=\"mention hashtag\" rel=\"tag\">#<span>DeepSeek</span></a> <a href=\"https://mastodon.social/tags/Open\" class=\"mention hashtag\" rel=\"tag\">#<span>Open</span></a> <a href=\"https://mastodon.social/tags/Source\" class=\"mention hashtag\" rel=\"tag\">#<span>Source</span></a> <a href=\"https://mastodon.social/tags/FlashMLA\" class=\"mention hashtag\" rel=\"tag\">#<span>FlashMLA</span></a> <a href=\"https://mastodon.social/tags/MLA\" class=\"mention hashtag\" rel=\"tag\">#<span>MLA</span></a> <a href=\"https://mastodon.social/tags/Decoding\" class=\"mention hashtag\" rel=\"tag\">#<span>Decoding</span></a> <a href=\"https://mastodon.social/tags/Kernel\" class=\"mention hashtag\" rel=\"tag\">#<span>Kernel</span></a> <a href=\"https://mastodon.social/tags/for\" class=\"mention hashtag\" rel=\"tag\">#<span>for</span></a> <a href=\"https://mastodon.social/tags/Hopper\" class=\"mention hashtag\" rel=\"tag\">#<span>Hopper</span></a> <a href=\"https://mastodon.social/tags/GPUs\" class=\"mention hashtag\" rel=\"tag\">#<span>GPUs</span></a> <a href=\"https://mastodon.social/tags/GitHub\" class=\"mention hashtag\" rel=\"tag\">#<span>GitHub</span></a> <a href=\"https://mastodon.social/tags/OpenSource\" class=\"mention hashtag\" rel=\"tag\">#<span>OpenSource</span></a> <a href=\"https://mastodon.social/tags/AI\" class=\"mention hashtag\" rel=\"tag\">#<span>AI</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/hackernews", "name": "#hackernews" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/deepseek", "name": "#deepseek" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/open", "name": "#open" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/source", "name": "#source" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/flashmla", "name": "#flashmla" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/mla", "name": "#mla" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/decoding", "name": "#decoding" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/kernel", "name": "#kernel" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/for", "name": "#for" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/hopper", "name": "#hopper" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/gpus", "name": "#gpus" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/github", "name": "#github" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/opensource", "name": "#opensource" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/ai", "name": "#ai" } ], "replies": { "id": "https://mastodon.social/users/h4ckernews/statuses/114056608102362113/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/h4ckernews/statuses/114056608102362113/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/h4ckernews/statuses/114056608102362113/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/h4ckernews/statuses/114056608102362113/likes", "type": "Collection", "totalItems": 0 }, "shares": { "id": "https://mastodon.social/users/h4ckernews/statuses/114056608102362113/shares", "type": "Collection", "totalItems": 1 } }