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://mathstodon.xyz/users/julesh/statuses/113154497189517487", "type": "Note", "summary": null, "inReplyTo": null, "published": "2024-09-17T19:16:44Z", "url": "https://mathstodon.xyz/@julesh/113154497189517487", "attributedTo": "https://mathstodon.xyz/users/julesh", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mathstodon.xyz/users/julesh/followers" ], "sensitive": false, "atomUri": "https://mathstodon.xyz/users/julesh/statuses/113154497189517487", "inReplyToAtomUri": null, "conversation": "tag:mathstodon.xyz,2024-09-17:objectId=114868730:objectType=Conversation", "content": "<p>Today I had the important realisation that when you write nontrivial code in a current-generation dependently typed programming language, a big chunk of your code is representing a trace of the sequence of states that the unifier would go through if you had a sufficiently smart typechecker. So it&#39;s not a coincidence that it feels so much like assembly programming, because in assembly programming your code represents a trace of the sequence of states that the abstract machine would go through if you had a sufficiently smart compiler</p><p>This makes the Lean project both more impressive and more hilarious, they&#39;re building on a technology that is *obviously* still a decade or 2 away from bare minimum viability</p>", "contentMap": { "en": "<p>Today I had the important realisation that when you write nontrivial code in a current-generation dependently typed programming language, a big chunk of your code is representing a trace of the sequence of states that the unifier would go through if you had a sufficiently smart typechecker. So it&#39;s not a coincidence that it feels so much like assembly programming, because in assembly programming your code represents a trace of the sequence of states that the abstract machine would go through if you had a sufficiently smart compiler</p><p>This makes the Lean project both more impressive and more hilarious, they&#39;re building on a technology that is *obviously* still a decade or 2 away from bare minimum viability</p>" }, "attachment": [], "tag": [], "replies": { "id": "https://mathstodon.xyz/users/julesh/statuses/113154497189517487/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mathstodon.xyz/users/julesh/statuses/113154497189517487/replies?only_other_accounts=true&page=true", "partOf": "https://mathstodon.xyz/users/julesh/statuses/113154497189517487/replies", "items": [] } }, "likes": { "id": "https://mathstodon.xyz/users/julesh/statuses/113154497189517487/likes", "type": "Collection", "totalItems": 11 }, "shares": { "id": "https://mathstodon.xyz/users/julesh/statuses/113154497189517487/shares", "type": "Collection", "totalItems": 4 } }