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.social/users/rzeta0/collections/featured", "type": "OrderedCollection", "totalItems": 5, "orderedItems": [ { "id": "https://mastodon.social/users/rzeta0/statuses/113979292933044552", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-02-10T11:13:08Z", "url": "https://mastodon.social/@rzeta0/113979292933044552", "attributedTo": "https://mastodon.social/users/rzeta0", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/rzeta0/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/rzeta0/statuses/113979292933044552", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-02-10:objectId=917400681:objectType=Conversation", "content": "<p>&quot; 𝗠𝗮𝘁𝗵𝘀 𝗣𝗿𝗼𝗼𝗳𝘀 𝗶𝗻 𝗟𝗲𝗮𝗻 - 𝗙𝗶𝗿𝘀𝘁 𝗦𝘁𝗲𝗽𝘀 &quot; 🚀</p><p>Designed specifically for beginners struggling to get started with other courses and guides.</p><p>* Simple bite-sized examples.<br />* Focus on concepts, introduced gradually.<br />* One easy exercise per chapter.</p><p>.. all to build confidence, not demolish it !</p><p><a href=\"https://www.amazon.com/dp/B0DWHS1RDJ\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">amazon.com/dp/B0DWHS1RDJ</span><span class=\"invisible\"></span></a></p><p><a href=\"https://mastodon.social/tags/maths\" class=\"mention hashtag\" rel=\"tag\">#<span>maths</span></a> <a href=\"https://mastodon.social/tags/lean\" class=\"mention hashtag\" rel=\"tag\">#<span>lean</span></a> <a href=\"https://mastodon.social/tags/mathlib\" class=\"mention hashtag\" rel=\"tag\">#<span>mathlib</span></a> <a href=\"https://mastodon.social/tags/lean4\" class=\"mention hashtag\" rel=\"tag\">#<span>lean4</span></a></p>", "contentMap": { "en": "<p>&quot; 𝗠𝗮𝘁𝗵𝘀 𝗣𝗿𝗼𝗼𝗳𝘀 𝗶𝗻 𝗟𝗲𝗮𝗻 - 𝗙𝗶𝗿𝘀𝘁 𝗦𝘁𝗲𝗽𝘀 &quot; 🚀</p><p>Designed specifically for beginners struggling to get started with other courses and guides.</p><p>* Simple bite-sized examples.<br />* Focus on concepts, introduced gradually.<br />* One easy exercise per chapter.</p><p>.. all to build confidence, not demolish it !</p><p><a href=\"https://www.amazon.com/dp/B0DWHS1RDJ\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">amazon.com/dp/B0DWHS1RDJ</span><span class=\"invisible\"></span></a></p><p><a href=\"https://mastodon.social/tags/maths\" class=\"mention hashtag\" rel=\"tag\">#<span>maths</span></a> <a href=\"https://mastodon.social/tags/lean\" class=\"mention hashtag\" rel=\"tag\">#<span>lean</span></a> <a href=\"https://mastodon.social/tags/mathlib\" class=\"mention hashtag\" rel=\"tag\">#<span>mathlib</span></a> <a href=\"https://mastodon.social/tags/lean4\" class=\"mention hashtag\" rel=\"tag\">#<span>lean4</span></a></p>" }, "updated": "2025-02-10T11:21:17Z", "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://files.mastodon.social/media_attachments/files/113/979/288/059/041/691/original/22b2e84d14e4741b.png", "name": "book rendered in 3d cartoonish style - Maths Proofs in Lean First Steps", "blurhash": "USRo:9xa}_X8xHofbYRjnpj@Sbaht6j[a$WU", "focalPoint": [ 0, 0 ], "width": 1729, "height": 1530 } ], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/maths", "name": "#maths" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/lean", "name": "#lean" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/mathlib", "name": "#mathlib" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/lean4", "name": "#lean4" } ], "replies": { "id": "https://mastodon.social/users/rzeta0/statuses/113979292933044552/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/rzeta0/statuses/113979292933044552/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/rzeta0/statuses/113979292933044552/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/rzeta0/statuses/113979292933044552/likes", "type": "Collection", "totalItems": 6 }, "shares": { "id": "https://mastodon.social/users/rzeta0/statuses/113979292933044552/shares", "type": "Collection", "totalItems": 4 } }, { "id": "https://mastodon.social/users/rzeta0/statuses/113212345314860131", "type": "Note", "summary": null, "inReplyTo": null, "published": "2024-09-28T00:28:16Z", "url": "https://mastodon.social/@rzeta0/113212345314860131", "attributedTo": "https://mastodon.social/users/rzeta0", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/rzeta0/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/rzeta0/statuses/113212345314860131", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2024-09-28:objectId=809519694:objectType=Conversation", "content": "<p>&quot;I&#39;m just 10. &quot;</p><p>This was before Oct 7.</p><p>It&#39;s been going on for 75 f**ing years.</p><p><a href=\"https://www.youtube.com/watch?v=c4CnoqvI_bQ\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">youtube.com/watch?v=c4CnoqvI_bQ</span><span class=\"invisible\"></span></a></p>", "contentMap": { "en": "<p>&quot;I&#39;m just 10. &quot;</p><p>This was before Oct 7.</p><p>It&#39;s been going on for 75 f**ing years.</p><p><a href=\"https://www.youtube.com/watch?v=c4CnoqvI_bQ\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">youtube.com/watch?v=c4CnoqvI_bQ</span><span class=\"invisible\"></span></a></p>" }, "attachment": [], "tag": [], "replies": { "id": "https://mastodon.social/users/rzeta0/statuses/113212345314860131/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/rzeta0/statuses/113212345314860131/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/rzeta0/statuses/113212345314860131/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/rzeta0/statuses/113212345314860131/likes", "type": "Collection", "totalItems": 21 }, "shares": { "id": "https://mastodon.social/users/rzeta0/statuses/113212345314860131/shares", "type": "Collection", "totalItems": 20 } }, { "id": "https://mastodon.social/users/rzeta0/statuses/112295284666385517", "type": "Note", "summary": null, "inReplyTo": null, "published": "2024-04-19T01:27:41Z", "url": "https://mastodon.social/@rzeta0/112295284666385517", "attributedTo": "https://mastodon.social/users/rzeta0", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/rzeta0/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/rzeta0/statuses/112295284666385517", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2024-04-19:objectId=688867250:objectType=Conversation", "content": "<p>Argentine Tango - a thread.</p><p>.. about the dance, the music, the culture around it, and a bit of history too.</p><p>(caveat - i&#39;m no expert, just an enthusiast)</p><p>Let&#39;s start with a fun taster - a dance to one of the 3 main genres of music within tango culture - the milonga - we&#39;ll talk more about it later.</p><p>Enjoy it - but if you do want to watch more carefully, notice the most important element of tango - connection!</p><p><a href=\"https://www.youtube.com/watch?v=YFyTwSoAjyI\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">youtube.com/watch?v=YFyTwSoAjyI</span><span class=\"invisible\"></span></a></p><p><a href=\"https://mastodon.social/tags/tango\" class=\"mention hashtag\" rel=\"tag\">#<span>tango</span></a> <a href=\"https://mastodon.social/tags/argentinetango\" class=\"mention hashtag\" rel=\"tag\">#<span>argentinetango</span></a> <a href=\"https://mastodon.social/tags/dance\" class=\"mention hashtag\" rel=\"tag\">#<span>dance</span></a> <a href=\"https://mastodon.social/tags/music\" class=\"mention hashtag\" rel=\"tag\">#<span>music</span></a></p>", "contentMap": { "en": "<p>Argentine Tango - a thread.</p><p>.. about the dance, the music, the culture around it, and a bit of history too.</p><p>(caveat - i&#39;m no expert, just an enthusiast)</p><p>Let&#39;s start with a fun taster - a dance to one of the 3 main genres of music within tango culture - the milonga - we&#39;ll talk more about it later.</p><p>Enjoy it - but if you do want to watch more carefully, notice the most important element of tango - connection!</p><p><a href=\"https://www.youtube.com/watch?v=YFyTwSoAjyI\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">youtube.com/watch?v=YFyTwSoAjyI</span><span class=\"invisible\"></span></a></p><p><a href=\"https://mastodon.social/tags/tango\" class=\"mention hashtag\" rel=\"tag\">#<span>tango</span></a> <a href=\"https://mastodon.social/tags/argentinetango\" class=\"mention hashtag\" rel=\"tag\">#<span>argentinetango</span></a> <a href=\"https://mastodon.social/tags/dance\" class=\"mention hashtag\" rel=\"tag\">#<span>dance</span></a> <a href=\"https://mastodon.social/tags/music\" class=\"mention hashtag\" rel=\"tag\">#<span>music</span></a></p>" }, "updated": "2024-04-19T01:50:57Z", "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/tango", "name": "#tango" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/argentinetango", "name": "#argentinetango" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/dance", "name": "#dance" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/music", "name": "#music" } ], "replies": { "id": "https://mastodon.social/users/rzeta0/statuses/112295284666385517/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/rzeta0/statuses/112295284666385517/replies?min_id=112295368049587950&page=true", "partOf": "https://mastodon.social/users/rzeta0/statuses/112295284666385517/replies", "items": [ "https://mastodon.social/users/rzeta0/statuses/112295368049587950" ] } }, "likes": { "id": "https://mastodon.social/users/rzeta0/statuses/112295284666385517/likes", "type": "Collection", "totalItems": 7 }, "shares": { "id": "https://mastodon.social/users/rzeta0/statuses/112295284666385517/shares", "type": "Collection", "totalItems": 6 } }, { "id": "https://mastodon.social/users/rzeta0/statuses/111969270887595429", "type": "Note", "summary": null, "inReplyTo": null, "published": "2024-02-21T11:38:05Z", "url": "https://mastodon.social/@rzeta0/111969270887595429", "attributedTo": "https://mastodon.social/users/rzeta0", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/rzeta0/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/rzeta0/statuses/111969270887595429", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2024-02-21:objectId=647833426:objectType=Conversation", "content": "<p>If you struggled with the traditional <a href=\"https://mastodon.social/tags/Prolog\" class=\"mention hashtag\" rel=\"tag\">#<span>Prolog</span></a> textbooks .. this short course was developed just for you.</p><p>✅ Develop understanding through hands-on bite-size examples.</p><p>✅ Example code is minimal to avoid distraction.</p><p>✅ Talk through how new ideas work, step-by-step.</p><p>✅ Avoid terminology and jargon if it is likely to hinder more than help.</p><p>YouTube: <a href=\"https://www.youtube.com/@prologbyexample/videos\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"ellipsis\">youtube.com/@prologbyexample/v</span><span class=\"invisible\">ideos</span></a></p><p>Web: <a href=\"https://prologbyexample.blogspot.com/p/toc.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">prologbyexample.blogspot.com/p</span><span class=\"invisible\">/toc.html</span></a></p><p>GitHub: <a href=\"https://github.com/prologbyexample/code\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">github.com/prologbyexample/code</span><span class=\"invisible\"></span></a></p><p>Book: <a href=\"https://www.amazon.com/dp/B0BTQ7P69H/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">amazon.com/dp/B0BTQ7P69H/</span><span class=\"invisible\"></span></a></p><p><a href=\"https://mastodon.social/tags/AI\" class=\"mention hashtag\" rel=\"tag\">#<span>AI</span></a> <a href=\"https://mastodon.social/tags/logic\" class=\"mention hashtag\" rel=\"tag\">#<span>logic</span></a> <a href=\"https://mastodon.social/tags/metaprogramming\" class=\"mention hashtag\" rel=\"tag\">#<span>metaprogramming</span></a></p>", "contentMap": { "en": "<p>If you struggled with the traditional <a href=\"https://mastodon.social/tags/Prolog\" class=\"mention hashtag\" rel=\"tag\">#<span>Prolog</span></a> textbooks .. this short course was developed just for you.</p><p>✅ Develop understanding through hands-on bite-size examples.</p><p>✅ Example code is minimal to avoid distraction.</p><p>✅ Talk through how new ideas work, step-by-step.</p><p>✅ Avoid terminology and jargon if it is likely to hinder more than help.</p><p>YouTube: <a href=\"https://www.youtube.com/@prologbyexample/videos\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"ellipsis\">youtube.com/@prologbyexample/v</span><span class=\"invisible\">ideos</span></a></p><p>Web: <a href=\"https://prologbyexample.blogspot.com/p/toc.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">prologbyexample.blogspot.com/p</span><span class=\"invisible\">/toc.html</span></a></p><p>GitHub: <a href=\"https://github.com/prologbyexample/code\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">github.com/prologbyexample/code</span><span class=\"invisible\"></span></a></p><p>Book: <a href=\"https://www.amazon.com/dp/B0BTQ7P69H/\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://www.</span><span class=\"\">amazon.com/dp/B0BTQ7P69H/</span><span class=\"invisible\"></span></a></p><p><a href=\"https://mastodon.social/tags/AI\" class=\"mention hashtag\" rel=\"tag\">#<span>AI</span></a> <a href=\"https://mastodon.social/tags/logic\" class=\"mention hashtag\" rel=\"tag\">#<span>logic</span></a> <a href=\"https://mastodon.social/tags/metaprogramming\" class=\"mention hashtag\" rel=\"tag\">#<span>metaprogramming</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://files.mastodon.social/media_attachments/files/111/969/239/340/852/205/original/23b944f562e5c41c.png", "name": "Book cover: Prolog By Example\n\namazon link: https://www.amazon.com/dp/B0BTQ7P69H/", "blurhash": "UbPst%k8?GbEVh%1kSxa0ef#s:f#j2xtoexa", "focalPoint": [ 0, 0.53 ], "width": 1749, "height": 2481 } ], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/prolog", "name": "#prolog" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/ai", "name": "#ai" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/logic", "name": "#logic" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/metaprogramming", "name": "#metaprogramming" } ], "replies": { "id": "https://mastodon.social/users/rzeta0/statuses/111969270887595429/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/rzeta0/statuses/111969270887595429/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/rzeta0/statuses/111969270887595429/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/rzeta0/statuses/111969270887595429/likes", "type": "Collection", "totalItems": 39 }, "shares": { "id": "https://mastodon.social/users/rzeta0/statuses/111969270887595429/shares", "type": "Collection", "totalItems": 22 } }, { "id": "https://mastodon.social/users/rzeta0/statuses/111717208366863531", "type": "Note", "summary": null, "inReplyTo": null, "published": "2024-01-07T23:15:17Z", "url": "https://mastodon.social/@rzeta0/111717208366863531", "attributedTo": "https://mastodon.social/users/rzeta0", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/rzeta0/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/rzeta0/statuses/111717208366863531", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2024-01-07:objectId=615325636:objectType=Conversation", "content": "<p>The 2nd Edition of &quot;Make Your Own Mandelbrot&quot; is out!</p><p>✅ updated to <a href=\"https://mastodon.social/tags/Python\" class=\"mention hashtag\" rel=\"tag\">#<span>Python</span></a> 3<br />✅ <a href=\"https://mastodon.social/tags/fractals\" class=\"mention hashtag\" rel=\"tag\">#<span>fractals</span></a> → easy <a href=\"https://mastodon.social/tags/maths\" class=\"mention hashtag\" rel=\"tag\">#<span>maths</span></a> → DIY <a href=\"https://mastodon.social/tags/python\" class=\"mention hashtag\" rel=\"tag\">#<span>python</span></a><br />✅ expts in filters, 3d landscapes<br />✅ new chapter on Distance Estimation Methods for very detailed renders (see cover image)<br />✅ all code <a href=\"https://mastodon.social/tags/opensource\" class=\"mention hashtag\" rel=\"tag\">#<span>opensource</span></a> on GitHub </p><p><a href=\"https://amazon.com/dp/B0CQS8JYJC\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">amazon.com/dp/B0CQS8JYJC</span><span class=\"invisible\"></span></a></p>", "contentMap": { "en": "<p>The 2nd Edition of &quot;Make Your Own Mandelbrot&quot; is out!</p><p>✅ updated to <a href=\"https://mastodon.social/tags/Python\" class=\"mention hashtag\" rel=\"tag\">#<span>Python</span></a> 3<br />✅ <a href=\"https://mastodon.social/tags/fractals\" class=\"mention hashtag\" rel=\"tag\">#<span>fractals</span></a> → easy <a href=\"https://mastodon.social/tags/maths\" class=\"mention hashtag\" rel=\"tag\">#<span>maths</span></a> → DIY <a href=\"https://mastodon.social/tags/python\" class=\"mention hashtag\" rel=\"tag\">#<span>python</span></a><br />✅ expts in filters, 3d landscapes<br />✅ new chapter on Distance Estimation Methods for very detailed renders (see cover image)<br />✅ all code <a href=\"https://mastodon.social/tags/opensource\" class=\"mention hashtag\" rel=\"tag\">#<span>opensource</span></a> on GitHub </p><p><a href=\"https://amazon.com/dp/B0CQS8JYJC\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">amazon.com/dp/B0CQS8JYJC</span><span class=\"invisible\"></span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://files.mastodon.social/media_attachments/files/111/717/204/027/164/183/original/99c0d84e5053b49d.png", "name": "Make Your Own Mandelbrot - Second Edition\n\n(book cover)", "blurhash": "URP6:Cx@~VE1rzxtRj-o0eRjV[%KM,-:xtV[", "focalPoint": [ 0, 0.45 ], "width": 1749, "height": 2481 } ], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/python", "name": "#python" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/fractals", "name": "#fractals" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/maths", "name": "#maths" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/opensource", "name": "#opensource" } ], "replies": { "id": "https://mastodon.social/users/rzeta0/statuses/111717208366863531/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/rzeta0/statuses/111717208366863531/replies?min_id=111717226383376284&page=true", "partOf": "https://mastodon.social/users/rzeta0/statuses/111717208366863531/replies", "items": [ "https://mastodon.social/users/rzeta0/statuses/111717226383376284" ] } }, "likes": { "id": "https://mastodon.social/users/rzeta0/statuses/111717208366863531/likes", "type": "Collection", "totalItems": 16 }, "shares": { "id": "https://mastodon.social/users/rzeta0/statuses/111717208366863531/shares", "type": "Collection", "totalItems": 8 } } ] }