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://scipost.social/users/physics/statuses/114516679421735422", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-05-16T08:57:35Z", "url": "https://scipost.social/@physics/114516679421735422", "attributedTo": "https://scipost.social/users/physics", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://scipost.social/users/physics/followers" ], "sensitive": false, "atomUri": "https://scipost.social/users/physics/statuses/114516679421735422", "inReplyToAtomUri": null, "conversation": "tag:scipost.social,2025-05-16:objectId=714312:objectType=Conversation", "content": "<p>New <a href=\"https://scipost.social/tags/openaccess\" class=\"mention hashtag\" rel=\"tag\">#<span>openaccess</span></a> publication <a href=\"https://scipost.social/tags/SciPost\" class=\"mention hashtag\" rel=\"tag\">#<span>SciPost</span></a> <a href=\"https://scipost.social/tags/Physics\" class=\"mention hashtag\" rel=\"tag\">#<span>Physics</span></a></p><p>Spin-chain based quantum thermal machines</p><p>Edoardo Maria Centamori, Michele Campisi, Vittorio Giovannetti<br />SciPost Phys. 18, 160 (2025)<br /><a href=\"https://scipost.org/SciPostPhys.18.5.160\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">scipost.org/SciPostPhys.18.5.1</span><span class=\"invisible\">60</span></a></p><p><a href=\"https://scipost.social/tags/ScuolaNormaleSuperiore\" class=\"mention hashtag\" rel=\"tag\">#<span>ScuolaNormaleSuperiore</span></a> <a href=\"https://scipost.social/tags/CNRNano\" class=\"mention hashtag\" rel=\"tag\">#<span>CNRNano</span></a> <a href=\"https://scipost.social/tags/NEST\" class=\"mention hashtag\" rel=\"tag\">#<span>NEST</span></a><br /><a href=\"https://scipost.social/tags/MUR\" class=\"mention hashtag\" rel=\"tag\">#<span>MUR</span></a></p>", "contentMap": { "en": "<p>New <a href=\"https://scipost.social/tags/openaccess\" class=\"mention hashtag\" rel=\"tag\">#<span>openaccess</span></a> publication <a href=\"https://scipost.social/tags/SciPost\" class=\"mention hashtag\" rel=\"tag\">#<span>SciPost</span></a> <a href=\"https://scipost.social/tags/Physics\" class=\"mention hashtag\" rel=\"tag\">#<span>Physics</span></a></p><p>Spin-chain based quantum thermal machines</p><p>Edoardo Maria Centamori, Michele Campisi, Vittorio Giovannetti<br />SciPost Phys. 18, 160 (2025)<br /><a href=\"https://scipost.org/SciPostPhys.18.5.160\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">scipost.org/SciPostPhys.18.5.1</span><span class=\"invisible\">60</span></a></p><p><a href=\"https://scipost.social/tags/ScuolaNormaleSuperiore\" class=\"mention hashtag\" rel=\"tag\">#<span>ScuolaNormaleSuperiore</span></a> <a href=\"https://scipost.social/tags/CNRNano\" class=\"mention hashtag\" rel=\"tag\">#<span>CNRNano</span></a> <a href=\"https://scipost.social/tags/NEST\" class=\"mention hashtag\" rel=\"tag\">#<span>NEST</span></a><br /><a href=\"https://scipost.social/tags/MUR\" class=\"mention hashtag\" rel=\"tag\">#<span>MUR</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://scipost.social/system/media_attachments/files/114/516/678/769/676/816/original/a247e455394f91d1.png", "name": null, "blurhash": "UFS6Ssv}~XT1t7ayWBj[?uS%M|wHt7jbWBbF", "width": 633, "height": 413 } ], "tag": [ { "type": "Hashtag", "href": "https://scipost.social/tags/openaccess", "name": "#openaccess" }, { "type": "Hashtag", "href": "https://scipost.social/tags/SciPost", "name": "#SciPost" }, { "type": "Hashtag", "href": "https://scipost.social/tags/physics", "name": "#physics" }, { "type": "Hashtag", "href": "https://scipost.social/tags/ScuolaNormaleSuperiore", "name": "#ScuolaNormaleSuperiore" }, { "type": "Hashtag", "href": "https://scipost.social/tags/CNRNano", "name": "#CNRNano" }, { "type": "Hashtag", "href": "https://scipost.social/tags/nest", "name": "#nest" }, { "type": "Hashtag", "href": "https://scipost.social/tags/MUR", "name": "#MUR" } ], "replies": { "id": "https://scipost.social/users/physics/statuses/114516679421735422/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://scipost.social/users/physics/statuses/114516679421735422/replies?only_other_accounts=true&page=true", "partOf": "https://scipost.social/users/physics/statuses/114516679421735422/replies", "items": [] } } }