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", "blurhash": "toot:blurhash", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" }, "Hashtag": "as:Hashtag" } ], "id": "https://mastodon.acm.org/users/ACM/statuses/114654026058262244", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-06-09T15:06:38Z", "url": "https://mastodon.acm.org/@ACM/114654026058262244", "attributedTo": "https://mastodon.acm.org/users/ACM", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.acm.org/users/ACM/followers" ], "sensitive": false, "atomUri": "https://mastodon.acm.org/users/ACM/statuses/114654026058262244", "inReplyToAtomUri": null, "conversation": "tag:mastodon.acm.org,2025-06-09:objectId=26764807:objectType=Conversation", "content": "<p>In an opinion piece in The Conversation, <a href=\"https://mastodon.acm.org/tags/ACMTuringLaureate\" class=\"mention hashtag\" rel=\"tag\">#<span>ACMTuringLaureate</span></a> Jack Dongarra takes a stand for traditional high-performance computing (<a href=\"https://mastodon.acm.org/tags/HPC\" class=\"mention hashtag\" rel=\"tag\">#<span>HPC</span></a>), opining that AI&#39;s reliance on HPC necessitates greater focus from the U.S. government. </p><p>&quot;US national strategy should include funding new machines and training for people to use them,&quot; he writes. Read more: <a href=\"https://theconversation.com/challenges-to-high-performance-computing-threaten-us-innovation-255188\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">theconversation.com/challenges</span><span class=\"invisible\">-to-high-performance-computing-threaten-us-innovation-255188</span></a></p>", "contentMap": { "en": "<p>In an opinion piece in The Conversation, <a href=\"https://mastodon.acm.org/tags/ACMTuringLaureate\" class=\"mention hashtag\" rel=\"tag\">#<span>ACMTuringLaureate</span></a> Jack Dongarra takes a stand for traditional high-performance computing (<a href=\"https://mastodon.acm.org/tags/HPC\" class=\"mention hashtag\" rel=\"tag\">#<span>HPC</span></a>), opining that AI&#39;s reliance on HPC necessitates greater focus from the U.S. government. </p><p>&quot;US national strategy should include funding new machines and training for people to use them,&quot; he writes. Read more: <a href=\"https://theconversation.com/challenges-to-high-performance-computing-threaten-us-innovation-255188\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">theconversation.com/challenges</span><span class=\"invisible\">-to-high-performance-computing-threaten-us-innovation-255188</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/jpeg", "url": "https://mastodon.acm.org/system/media_attachments/files/114/654/025/945/198/964/original/673abaf9451ba609.jpeg", "name": null, "blurhash": "UWHB#r?E~pslxTskD$oH_2xZ%2RiIURPM{s:", "width": 1024, "height": 504 } ], "tag": [ { "type": "Hashtag", "href": "https://mastodon.acm.org/tags/acmturinglaureate", "name": "#acmturinglaureate" }, { "type": "Hashtag", "href": "https://mastodon.acm.org/tags/hpc", "name": "#hpc" } ], "replies": { "id": "https://mastodon.acm.org/users/ACM/statuses/114654026058262244/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.acm.org/users/ACM/statuses/114654026058262244/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.acm.org/users/ACM/statuses/114654026058262244/replies", "items": [] } }, "likes": { "id": "https://mastodon.acm.org/users/ACM/statuses/114654026058262244/likes", "type": "Collection", "totalItems": 4 }, "shares": { "id": "https://mastodon.acm.org/users/ACM/statuses/114654026058262244/shares", "type": "Collection", "totalItems": 5 } }