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/HistoPol/statuses/114360184719794077", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.world/users/andrewdessler/statuses/114359896554566010", "published": "2025-04-18T17:38:55Z", "url": "https://mastodon.social/@HistoPol/114360184719794077", "attributedTo": "https://mastodon.social/users/HistoPol", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/HistoPol/followers", "https://mastodon.world/users/andrewdessler" ], "sensitive": false, "atomUri": "https://mastodon.social/users/HistoPol/statuses/114360184719794077", "inReplyToAtomUri": "https://mastodon.world/users/andrewdessler/statuses/114359896554566010", "conversation": "tag:mastodon.world,2025-04-18:objectId=403426572:objectType=Conversation", "content": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.world/@andrewdessler\" class=\"u-url mention\">@<span>andrewdessler</span></a></span> </p><p><a href=\"https://mastodon.social/tags/AlignmentOfScience\" class=\"mention hashtag\" rel=\"tag\">#<span>AlignmentOfScience</span></a> 1933/2025<br /><a href=\"https://mastodon.social/tags/RememberTiananmenSquare\" class=\"mention hashtag\" rel=\"tag\">#<span>RememberTiananmenSquare</span></a><br /><a href=\"https://mastodon.social/tags/USpol\" class=\"mention hashtag\" rel=\"tag\">#<span>USpol</span></a> </p><p>&quot;Critical research will relocate to &quot;👉<a href=\"https://mastodon.social/tags/China\" class=\"mention hashtag\" rel=\"tag\">#<span>China</span></a>👈, Europe, and other regions with rational research funding models.&quot;</p><p>&quot;... China...&quot;?!?</p><p>👇<br />As the Spanish philosopher and Autor George <a href=\"https://mastodon.social/tags/Santayana\" class=\"mention hashtag\" rel=\"tag\">#<span>Santayana</span></a> said:</p><p>«Los que no pueden recordar el pasado están condenados a repetirlo.&quot;</p><p>(👉Those who cannot remember the past are condemned to repeat it.👈) </p><p>Also: <a href=\"https://mastodon.social/tags/RemberTheManhattanProject\" class=\"mention hashtag\" rel=\"tag\">#<span>RemberTheManhattanProject</span></a>! --Would <a href=\"https://mastodon.social/tags/Xi\" class=\"mention hashtag\" rel=\"tag\">#<span>Xi</span></a> have been as scrupulous if POTUS?!?</p>", "contentMap": { "en": "<p><span class=\"h-card\" translate=\"no\"><a href=\"https://mastodon.world/@andrewdessler\" class=\"u-url mention\">@<span>andrewdessler</span></a></span> </p><p><a href=\"https://mastodon.social/tags/AlignmentOfScience\" class=\"mention hashtag\" rel=\"tag\">#<span>AlignmentOfScience</span></a> 1933/2025<br /><a href=\"https://mastodon.social/tags/RememberTiananmenSquare\" class=\"mention hashtag\" rel=\"tag\">#<span>RememberTiananmenSquare</span></a><br /><a href=\"https://mastodon.social/tags/USpol\" class=\"mention hashtag\" rel=\"tag\">#<span>USpol</span></a> </p><p>&quot;Critical research will relocate to &quot;👉<a href=\"https://mastodon.social/tags/China\" class=\"mention hashtag\" rel=\"tag\">#<span>China</span></a>👈, Europe, and other regions with rational research funding models.&quot;</p><p>&quot;... China...&quot;?!?</p><p>👇<br />As the Spanish philosopher and Autor George <a href=\"https://mastodon.social/tags/Santayana\" class=\"mention hashtag\" rel=\"tag\">#<span>Santayana</span></a> said:</p><p>«Los que no pueden recordar el pasado están condenados a repetirlo.&quot;</p><p>(👉Those who cannot remember the past are condemned to repeat it.👈) </p><p>Also: <a href=\"https://mastodon.social/tags/RemberTheManhattanProject\" class=\"mention hashtag\" rel=\"tag\">#<span>RemberTheManhattanProject</span></a>! --Would <a href=\"https://mastodon.social/tags/Xi\" class=\"mention hashtag\" rel=\"tag\">#<span>Xi</span></a> have been as scrupulous if POTUS?!?</p>" }, "updated": "2025-04-19T23:52:09Z", "attachment": [ { "type": "Document", "mediaType": "image/jpeg", "url": "https://files.mastodon.social/media_attachments/files/114/360/101/607/043/823/original/0f115a15caf6aa93.jpg", "name": "The #TankMan\", a student protester, repeatedly blocking a squadron of #RedArmy tanks, on the #TiananmenSquare in #Beijing on June 5th, 1989, shortly after the student massacre took placein the night of June 3rd. \n\nSource:\nhttps://www.sbs.com.au/news/article/this-is-how-the-1989-tiananmen-square-massacre-unfolded/ego4r7kr4\n", "blurhash": "UHLgqo?bIUj[4XIVNGRj-:bb4.t6-p9Zaxxu", "width": 3000, "height": 2246 }, { "type": "Document", "mediaType": "image/jpeg", "url": "https://files.mastodon.social/media_attachments/files/114/360/130/482/074/997/original/d87b606c998e8cca.jpg", "name": "Bloody Chinese student in mass demonstrations\n\n\"During the night of 3 June to 4 June, the People's Liberation Army opened fire on the crowd. Source: Sygma\"\n\nhttps://www.sbs.com.au/news/article/this-is-how-the-1989-tiananmen-square-massacre-unfolded/ego4r7kr4", "blurhash": "UKFO.R=|I.R%yW%2-pIB?vo#NaR+~WxtWBWB", "width": 1024, "height": 683 }, { "type": "Document", "mediaType": "image/jpeg", "url": "https://files.mastodon.social/media_attachments/files/114/360/146/528/308/850/original/156a7378a8936ba0.jpg", "name": "Black and white photo of the Tiananmen Square in the immediate aftermath of the student massacre on June 4, 1989.\n\n The #RedArmy army is clearing the square, putting at least hundreds of dead bodies in white plastic bags.\n\nIn the background, the #ForbiddenCity can be seen.\n\nSource:\nhttps://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Fnsarchive.gwu.edu%2Fsites%2Fdefault%2Ffiles%2Fstyles%2Fwide%2Fpublic%2Fthumbnails%2Fimage%2F1989-tiananmen-crackdown.jpg%3Fitok%3DKJQc380Y&f=1&ipt=56f9292ccc46f00583ec18948cdbe25fad3de80f2010d5e9604c79fa60d626bb\n", "blurhash": "UPJ*uA-;-;ay~qRj%May_3RjRj%Mt7WBIURj", "width": 1200, "height": 676 } ], "tag": [ { "type": "Mention", "href": "https://mastodon.world/users/andrewdessler", "name": "@andrewdessler@mastodon.world" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/alignmentofscience", "name": "#alignmentofscience" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/remembertiananmensquare", "name": "#remembertiananmensquare" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/uspol", "name": "#uspol" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/china", "name": "#china" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/Santayana", "name": "#Santayana" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/remberthemanhattanproject", "name": "#remberthemanhattanproject" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/xi", "name": "#xi" } ], "replies": { "id": "https://mastodon.social/users/HistoPol/statuses/114360184719794077/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/HistoPol/statuses/114360184719794077/replies?min_id=114360241942495760&page=true", "partOf": "https://mastodon.social/users/HistoPol/statuses/114360184719794077/replies", "items": [ "https://mastodon.social/users/HistoPol/statuses/114360241942495760" ] } }, "likes": { "id": "https://mastodon.social/users/HistoPol/statuses/114360184719794077/likes", "type": "Collection", "totalItems": 1 }, "shares": { "id": "https://mastodon.social/users/HistoPol/statuses/114360184719794077/shares", "type": "Collection", "totalItems": 2 } }