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/shufan/collections/featured", "type": "OrderedCollection", "totalItems": 1, "orderedItems": [ { "id": "https://sigmoid.social/users/shufan/statuses/113902318754247164", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-01-27T20:57:35Z", "url": "https://sigmoid.social/@shufan/113902318754247164", "attributedTo": "https://sigmoid.social/users/shufan", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://sigmoid.social/users/shufan/followers", "https://sigmoid.social/users/shufan", "https://sigmoid.social/users/GenAsefa", "https://sigmoid.social/users/fizise", "https://wisskomm.social/users/fiz_karlsruhe", "https://nfdi.social/users/NFDI4DS" ], "sensitive": false, "atomUri": "https://sigmoid.social/users/shufan/statuses/113902318754247164", "inReplyToAtomUri": null, "conversation": "tag:sigmoid.social,2025-01-27:objectId=49833726:objectType=Conversation", "content": "<p>Our <a href=\"https://sigmoid.social/tags/ReadMe2KG\" class=\"mention hashtag\" rel=\"tag\">#<span>ReadMe2KG</span></a> Shared Task as part of <a href=\"https://sigmoid.social/tags/NSLP\" class=\"mention hashtag\" rel=\"tag\">#<span>NSLP</span></a> at <a href=\"https://sigmoid.social/tags/ESWC2025\" class=\"mention hashtag\" rel=\"tag\">#<span>ESWC2025</span></a> is officially LIVE! 🎉<br />If you have already written or read any README, you can understand the numerous challenges of this Named Entity Recognition (NER) task:</p><p>🔹 Noisy Data<br />🔹 Mix of Natural Language and Code Snippets<br />🔹 Nested and Overlapping Named Entities<br />🔹 Character-level Annotation and Evaluation</p><p>📌 Website:<br /><a href=\"https://nfdi4ds.github.io/nslp2025/docs/readme2kg_shared_task.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">nfdi4ds.github.io/nslp2025/doc</span><span class=\"invisible\">s/readme2kg_shared_task.html</span></a></p><p>📌 Competition Site: <a href=\"https://www.codabench.org/competitions/5396\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"ellipsis\">codabench.org/competitions/539</span><span class=\"invisible\">6</span></a><br /><span class=\"h-card\" translate=\"no\"><a href=\"https://sigmoid.social/@shufan\" class=\"u-url mention\">@<span>shufan</span></a></span> <span class=\"h-card\" translate=\"no\"><a href=\"https://sigmoid.social/@GenAsefa\" class=\"u-url mention\">@<span>GenAsefa</span></a></span> <span class=\"h-card\" translate=\"no\"><a href=\"https://wisskomm.social/@fiz_karlsruhe\" class=\"u-url mention\">@<span>fiz_karlsruhe</span></a></span> <span class=\"h-card\" translate=\"no\"><a href=\"https://sigmoid.social/@fizise\" class=\"u-url mention\">@<span>fizise</span></a></span> <a href=\"https://sigmoid.social/tags/cfp\" class=\"mention hashtag\" rel=\"tag\">#<span>cfp</span></a> <span class=\"h-card\" translate=\"no\"><a href=\"https://nfdi.social/@NFDI4DS\" class=\"u-url mention\">@<span>NFDI4DS</span></a></span></p>", "contentMap": { "en": "<p>Our <a href=\"https://sigmoid.social/tags/ReadMe2KG\" class=\"mention hashtag\" rel=\"tag\">#<span>ReadMe2KG</span></a> Shared Task as part of <a href=\"https://sigmoid.social/tags/NSLP\" class=\"mention hashtag\" rel=\"tag\">#<span>NSLP</span></a> at <a href=\"https://sigmoid.social/tags/ESWC2025\" class=\"mention hashtag\" rel=\"tag\">#<span>ESWC2025</span></a> is officially LIVE! 🎉<br />If you have already written or read any README, you can understand the numerous challenges of this Named Entity Recognition (NER) task:</p><p>🔹 Noisy Data<br />🔹 Mix of Natural Language and Code Snippets<br />🔹 Nested and Overlapping Named Entities<br />🔹 Character-level Annotation and Evaluation</p><p>📌 Website:<br /><a href=\"https://nfdi4ds.github.io/nslp2025/docs/readme2kg_shared_task.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">nfdi4ds.github.io/nslp2025/doc</span><span class=\"invisible\">s/readme2kg_shared_task.html</span></a></p><p>📌 Competition Site: <a href=\"https://www.codabench.org/competitions/5396\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"ellipsis\">codabench.org/competitions/539</span><span class=\"invisible\">6</span></a><br /><span class=\"h-card\" translate=\"no\"><a href=\"https://sigmoid.social/@shufan\" class=\"u-url mention\">@<span>shufan</span></a></span> <span class=\"h-card\" translate=\"no\"><a href=\"https://sigmoid.social/@GenAsefa\" class=\"u-url mention\">@<span>GenAsefa</span></a></span> <span class=\"h-card\" translate=\"no\"><a href=\"https://wisskomm.social/@fiz_karlsruhe\" class=\"u-url mention\">@<span>fiz_karlsruhe</span></a></span> <span class=\"h-card\" translate=\"no\"><a href=\"https://sigmoid.social/@fizise\" class=\"u-url mention\">@<span>fizise</span></a></span> <a href=\"https://sigmoid.social/tags/cfp\" class=\"mention hashtag\" rel=\"tag\">#<span>cfp</span></a> <span class=\"h-card\" translate=\"no\"><a href=\"https://nfdi.social/@NFDI4DS\" class=\"u-url mention\">@<span>NFDI4DS</span></a></span></p>" }, "updated": "2025-01-30T09:51:25Z", "attachment": [], "tag": [ { "type": "Mention", "href": "https://sigmoid.social/users/shufan", "name": "@shufan" }, { "type": "Mention", "href": "https://sigmoid.social/users/GenAsefa", "name": "@GenAsefa" }, { "type": "Mention", "href": "https://sigmoid.social/users/fizise", "name": "@fizise" }, { "type": "Mention", "href": "https://wisskomm.social/users/fiz_karlsruhe", "name": "@fiz_karlsruhe@wisskomm.social" }, { "type": "Mention", "href": "https://nfdi.social/users/NFDI4DS", "name": "@NFDI4DS@nfdi.social" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/readme2kg", "name": "#readme2kg" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/nslp", "name": "#nslp" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/eswc2025", "name": "#eswc2025" }, { "type": "Hashtag", "href": "https://sigmoid.social/tags/cfp", "name": "#cfp" } ], "replies": { "id": "https://sigmoid.social/users/shufan/statuses/113902318754247164/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://sigmoid.social/users/shufan/statuses/113902318754247164/replies?only_other_accounts=true&page=true", "partOf": "https://sigmoid.social/users/shufan/statuses/113902318754247164/replies", "items": [] } }, "likes": { "id": "https://sigmoid.social/users/shufan/statuses/113902318754247164/likes", "type": "Collection", "totalItems": 2 }, "shares": { "id": "https://sigmoid.social/users/shufan/statuses/113902318754247164/shares", "type": "Collection", "totalItems": 2 } } ] }