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://mathstodon.xyz/users/paysmaths/statuses/114682549893777562", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-06-14T16:00:37Z", "url": "https://mathstodon.xyz/@paysmaths/114682549893777562", "attributedTo": "https://mathstodon.xyz/users/paysmaths", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/paysmaths/followers" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/paysmaths/statuses/114682549893777562", "inReplyToAtomUri": null, "conversation": "tag:mathstodon.xyz,2025-06-14:objectId=158264960:objectType=Conversation", "content": "<p>&quot;Any good theorem should have several proofs, the more the better. For two reasons: usually, different proofs have different strengths and weaknesses, and they generalise in different directions – they are not just repetitions of each other.&quot; – Michael Atiyah (1929-2019)<br /><a href=\"https://mathstodon.xyz/tags/quote\" class=\"mention hashtag\" rel=\"tag\">#<span>quote</span></a> <a href=\"https://mathstodon.xyz/tags/mathematics\" class=\"mention hashtag\" rel=\"tag\">#<span>mathematics</span></a> <a href=\"https://mathstodon.xyz/tags/maths\" class=\"mention hashtag\" rel=\"tag\">#<span>maths</span></a> <a href=\"https://mathstodon.xyz/tags/math\" class=\"mention hashtag\" rel=\"tag\">#<span>math</span></a> <a href=\"https://mathstodon.xyz/tags/proof\" class=\"mention hashtag\" rel=\"tag\">#<span>proof</span></a></p>", "contentMap": { "fr": "<p>&quot;Any good theorem should have several proofs, the more the better. For two reasons: usually, different proofs have different strengths and weaknesses, and they generalise in different directions – they are not just repetitions of each other.&quot; – Michael Atiyah (1929-2019)<br /><a href=\"https://mathstodon.xyz/tags/quote\" class=\"mention hashtag\" rel=\"tag\">#<span>quote</span></a> <a href=\"https://mathstodon.xyz/tags/mathematics\" class=\"mention hashtag\" rel=\"tag\">#<span>mathematics</span></a> <a href=\"https://mathstodon.xyz/tags/maths\" class=\"mention hashtag\" rel=\"tag\">#<span>maths</span></a> <a href=\"https://mathstodon.xyz/tags/math\" class=\"mention hashtag\" rel=\"tag\">#<span>math</span></a> <a href=\"https://mathstodon.xyz/tags/proof\" class=\"mention hashtag\" rel=\"tag\">#<span>proof</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://media.mathstodon.xyz/media_attachments/files/114/682/549/785/255/441/original/7a4236c99571d6b8.png", "name": "Photographic portrait of Michael Atiyah, and a quote : \"Any good theorem should have several proofs, the more the better. For two reasons: usually, different proofs have different strengths and weaknesses, and they generalise in different directions – they are not just repetitions of each other.\"", "blurhash": "UeAn$KlBZ~i^ofbcjYaeDNVXkXg3S4oJWXbI", "width": 4072, "height": 2036 } ], "tag": [ { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/proof", "name": "#proof" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/math", "name": "#math" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/maths", "name": "#maths" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/mathematics", "name": "#mathematics" }, { "type": "Hashtag", "href": "https://mathstodon.xyz/tags/quote", "name": "#quote" } ], "replies": { "id": "https://mathstodon.xyz/users/paysmaths/statuses/114682549893777562/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/paysmaths/statuses/114682549893777562/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/paysmaths/statuses/114682549893777562/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/paysmaths/statuses/114682549893777562/likes", "type": "Collection", "totalItems": 5 }, "shares": { "id": "https://mathstodon.xyz/users/paysmaths/statuses/114682549893777562/shares", "type": "Collection", "totalItems": 2 } }