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/uecker/statuses/113814491867956381", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-01-12T08:42:03Z", "url": "https://mastodon.social/@uecker/113814491867956381", "attributedTo": "https://mastodon.social/users/uecker", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/uecker/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/uecker/statuses/113814491867956381", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-01-12:objectId=892451456:objectType=Conversation", "content": "<p>Preprint from a collaboration with Boston Children&#39;s Hospital: Rapid, High-resolution and Distortion-free R2* Mapping of Fetal Brain using Multi-echo Radial FLASH and Model-based Reconstruction</p><p><a href=\"https://arxiv.org/pdf/2501.00256\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">arxiv.org/pdf/2501.00256</span><span class=\"invisible\"></span></a><br /><a href=\"https://mastodon.social/tags/radiology\" class=\"mention hashtag\" rel=\"tag\">#<span>radiology</span></a> <a href=\"https://mastodon.social/tags/MRI\" class=\"mention hashtag\" rel=\"tag\">#<span>MRI</span></a> <a href=\"https://mastodon.social/tags/ComputationalImaging\" class=\"mention hashtag\" rel=\"tag\">#<span>ComputationalImaging</span></a></p>", "contentMap": { "en": "<p>Preprint from a collaboration with Boston Children&#39;s Hospital: Rapid, High-resolution and Distortion-free R2* Mapping of Fetal Brain using Multi-echo Radial FLASH and Model-based Reconstruction</p><p><a href=\"https://arxiv.org/pdf/2501.00256\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">arxiv.org/pdf/2501.00256</span><span class=\"invisible\"></span></a><br /><a href=\"https://mastodon.social/tags/radiology\" class=\"mention hashtag\" rel=\"tag\">#<span>radiology</span></a> <a href=\"https://mastodon.social/tags/MRI\" class=\"mention hashtag\" rel=\"tag\">#<span>MRI</span></a> <a href=\"https://mastodon.social/tags/ComputationalImaging\" class=\"mention hashtag\" rel=\"tag\">#<span>ComputationalImaging</span></a></p>" }, "updated": "2025-01-12T16:19:44Z", "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://files.mastodon.social/media_attachments/files/113/814/471/612/478/656/original/d644ede7899acea5.png", "name": "Part of a figure published in the paper with a label \"Subject 5 (36 weeks)\" In the top row in a MR images of a fetal brain labelled HASTE, and three images labelled \"Radial\" with additional individual labels \"Water\", \"R2*\" and \"B0\". In the bottom row there are three images labelled EPI with additional labels \"M0\" and \"R2*\".", "blurhash": "UlNAYbE1~qspROIUD*j=oze.t7ay-=xut7a#", "focalPoint": [ 0.23, -0.07 ], "width": 842, "height": 498 } ], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/radiology", "name": "#radiology" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/mri", "name": "#mri" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/computationalimaging", "name": "#computationalimaging" } ], "replies": { "id": "https://mastodon.social/users/uecker/statuses/113814491867956381/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/uecker/statuses/113814491867956381/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/uecker/statuses/113814491867956381/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/uecker/statuses/113814491867956381/likes", "type": "Collection", "totalItems": 3 }, "shares": { "id": "https://mastodon.social/users/uecker/statuses/113814491867956381/shares", "type": "Collection", "totalItems": 0 } }