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/appassionato/statuses/114453059080144113", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-05-05T03:18:06Z", "url": "https://mastodon.social/@appassionato/114453059080144113", "attributedTo": "https://mastodon.social/users/appassionato", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/appassionato/followers", "https://a.gup.pe/u/bookstodon", "https://a.gup.pe/u/bookstodon/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/appassionato/statuses/114453059080144113", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-05-05:objectId=988916059:objectType=Conversation", "content": "<p>Lessons of History: The Holocaust and Soviet Terror as Borderline Events by Klas-Göran Karlsson, 2024</p><p>Everyone simultaneously is history, shares history, and makes history. Not all history, however, is useful for extracting lessons. Here, what are called borderline historical events, which demonstrate both time-specific and time-transcending qualities, are suggested as useful didactic material. </p><p><span class=\"h-card\" translate=\"no\"><a href=\"https://a.gup.pe/u/bookstodon\" class=\"u-url mention\">@<span>bookstodon</span></a></span> <br /><a href=\"https://mastodon.social/tags/books\" class=\"mention hashtag\" rel=\"tag\">#<span>books</span></a> <br /><a href=\"https://mastodon.social/tags/nonfiction\" class=\"mention hashtag\" rel=\"tag\">#<span>nonfiction</span></a> <br /><a href=\"https://mastodon.social/tags/history\" class=\"mention hashtag\" rel=\"tag\">#<span>history</span></a> <br /><a href=\"https://mastodon.social/tags/Holocaust\" class=\"mention hashtag\" rel=\"tag\">#<span>Holocaust</span></a> <br /><a href=\"https://mastodon.social/tags/SovietUnion\" class=\"mention hashtag\" rel=\"tag\">#<span>SovietUnion</span></a></p>", "contentMap": { "en": "<p>Lessons of History: The Holocaust and Soviet Terror as Borderline Events by Klas-Göran Karlsson, 2024</p><p>Everyone simultaneously is history, shares history, and makes history. Not all history, however, is useful for extracting lessons. Here, what are called borderline historical events, which demonstrate both time-specific and time-transcending qualities, are suggested as useful didactic material. </p><p><span class=\"h-card\" translate=\"no\"><a href=\"https://a.gup.pe/u/bookstodon\" class=\"u-url mention\">@<span>bookstodon</span></a></span> <br /><a href=\"https://mastodon.social/tags/books\" class=\"mention hashtag\" rel=\"tag\">#<span>books</span></a> <br /><a href=\"https://mastodon.social/tags/nonfiction\" class=\"mention hashtag\" rel=\"tag\">#<span>nonfiction</span></a> <br /><a href=\"https://mastodon.social/tags/history\" class=\"mention hashtag\" rel=\"tag\">#<span>history</span></a> <br /><a href=\"https://mastodon.social/tags/Holocaust\" class=\"mention hashtag\" rel=\"tag\">#<span>Holocaust</span></a> <br /><a href=\"https://mastodon.social/tags/SovietUnion\" class=\"mention hashtag\" rel=\"tag\">#<span>SovietUnion</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/jpeg", "url": "https://files.mastodon.social/media_attachments/files/114/453/053/794/493/071/original/f4fe5800b20bcd96.jpg", "name": "Scholarly works on the Holocaust and Soviet terror, from Raul Hilberg’s and Robert Conquest’s classical works of the 1960s, to more recent books by Jan Gross and Timothy Snyder, are analyzed to identify lessons of history, and how they have changed during a full half-century.", "blurhash": "U,KU7o%MRjxt_Nt7Rjt7ogWBayayIUWBj[Rj", "focalPoint": [ -0.01, 0.5 ], "width": 640, "height": 963 } ], "tag": [ { "type": "Mention", "href": "https://a.gup.pe/u/bookstodon", "name": "@bookstodon@a.gup.pe" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/books", "name": "#books" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/nonfiction", "name": "#nonfiction" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/history", "name": "#history" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/holocaust", "name": "#holocaust" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/sovietunion", "name": "#sovietunion" } ], "replies": { "id": "https://mastodon.social/users/appassionato/statuses/114453059080144113/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/appassionato/statuses/114453059080144113/replies?min_id=114453060559154232&page=true", "partOf": "https://mastodon.social/users/appassionato/statuses/114453059080144113/replies", "items": [ "https://mastodon.social/users/appassionato/statuses/114453060559154232" ] } }, "likes": { "id": "https://mastodon.social/users/appassionato/statuses/114453059080144113/likes", "type": "Collection", "totalItems": 3 }, "shares": { "id": "https://mastodon.social/users/appassionato/statuses/114453059080144113/shares", "type": "Collection", "totalItems": 2 } }