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" } ], "id": "https://mastodon.cr.yp.to/users/djb/statuses/110780690497105946", "type": "Note", "summary": null, "inReplyTo": null, "published": "2023-07-26T13:46:28Z", "url": "https://mastodon.cr.yp.to/@djb/110780690497105946", "attributedTo": "https://mastodon.cr.yp.to/users/djb", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.cr.yp.to/users/djb/followers" ], "sensitive": false, "atomUri": "https://mastodon.cr.yp.to/users/djb/statuses/110780690497105946", "inReplyToAtomUri": null, "conversation": "tag:cr.yp.to,2023-07-26:objectId=25170:objectType=Conversation", "content": "<p>Formally verified theorems about decoding Goppa codes: <a href=\"https://cr.yp.to/2023/leangoppa-20230726-verify.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">cr.yp.to/2023/leangoppa-202307</span><span class=\"invisible\">26-verify.html</span></a> This is using the Lean theorem prover; I&#39;ll try formalizing the same theorems in HOL Light for comparison. This is a step towards full verification of fast software for the McEliece cryptosystem.</p>", "contentMap": { "en": "<p>Formally verified theorems about decoding Goppa codes: <a href=\"https://cr.yp.to/2023/leangoppa-20230726-verify.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">cr.yp.to/2023/leangoppa-202307</span><span class=\"invisible\">26-verify.html</span></a> This is using the Lean theorem prover; I&#39;ll try formalizing the same theorems in HOL Light for comparison. This is a step towards full verification of fast software for the McEliece cryptosystem.</p>" }, "attachment": [], "tag": [], "replies": { "id": "https://mastodon.cr.yp.to/users/djb/statuses/110780690497105946/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.cr.yp.to/users/djb/statuses/110780690497105946/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.cr.yp.to/users/djb/statuses/110780690497105946/replies", "items": [] } } }