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/114070434683150418", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-02-26T13:31:41Z", "url": "https://scipost.social/@physics/114070434683150418", "attributedTo": "https://scipost.social/users/physics", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://scipost.social/users/physics/followers", "https://wisskomm.social/users/maxplanckgesellschaft" ], "sensitive": false, "atomUri": "https://scipost.social/users/physics/statuses/114070434683150418", "inReplyToAtomUri": null, "conversation": "tag:scipost.social,2025-02-26:objectId=668042: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> <a href=\"https://scipost.social/tags/Codebases\" class=\"mention hashtag\" rel=\"tag\">#<span>Codebases</span></a></p><p>YASTN: Yet another symmetric tensor networks; A Python library for Abelian symmetric tensor network calculations</p><p>Marek M. Rams, Gabriela Wójtowicz, Aritra Sinha, Juraj Hasik</p><p>Paper:<br />SciPost Phys. Codebases 52 (2025)<br /><a href=\"https://scipost.org/SciPostPhysCodeb.52\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">scipost.org/SciPostPhysCodeb.5</span><span class=\"invisible\">2</span></a></p><p>YASTN v1.2:<br />SciPost Phys. Codebases 52-r1.2 (2025)<br /><a href=\"https://scipost.org/SciPostPhysCodeb.52-r1.2\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">scipost.org/SciPostPhysCodeb.5</span><span class=\"invisible\">2-r1.2</span></a></p><p><a href=\"https://scipost.social/tags/JagiellonianUniversity\" class=\"mention hashtag\" rel=\"tag\">#<span>JagiellonianUniversity</span></a> <a href=\"https://scipost.social/tags/UlmUniversity\" class=\"mention hashtag\" rel=\"tag\">#<span>UlmUniversity</span></a> <span class=\"h-card\"><a href=\"https://wisskomm.social/@maxplanckgesellschaft\" class=\"u-url mention\">@<span>maxplanckgesellschaft</span></a></span> <a href=\"https://scipost.social/tags/IoP\" class=\"mention hashtag\" rel=\"tag\">#<span>IoP</span></a> <a href=\"https://scipost.social/tags/UZH\" class=\"mention hashtag\" rel=\"tag\">#<span>UZH</span></a> <a href=\"https://scipost.social/tags/DeltaITP\" class=\"mention hashtag\" rel=\"tag\">#<span>DeltaITP</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> <a href=\"https://scipost.social/tags/Codebases\" class=\"mention hashtag\" rel=\"tag\">#<span>Codebases</span></a></p><p>YASTN: Yet another symmetric tensor networks; A Python library for Abelian symmetric tensor network calculations</p><p>Marek M. Rams, Gabriela Wójtowicz, Aritra Sinha, Juraj Hasik</p><p>Paper:<br />SciPost Phys. Codebases 52 (2025)<br /><a href=\"https://scipost.org/SciPostPhysCodeb.52\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">scipost.org/SciPostPhysCodeb.5</span><span class=\"invisible\">2</span></a></p><p>YASTN v1.2:<br />SciPost Phys. Codebases 52-r1.2 (2025)<br /><a href=\"https://scipost.org/SciPostPhysCodeb.52-r1.2\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">scipost.org/SciPostPhysCodeb.5</span><span class=\"invisible\">2-r1.2</span></a></p><p><a href=\"https://scipost.social/tags/JagiellonianUniversity\" class=\"mention hashtag\" rel=\"tag\">#<span>JagiellonianUniversity</span></a> <a href=\"https://scipost.social/tags/UlmUniversity\" class=\"mention hashtag\" rel=\"tag\">#<span>UlmUniversity</span></a> <span class=\"h-card\"><a href=\"https://wisskomm.social/@maxplanckgesellschaft\" class=\"u-url mention\">@<span>maxplanckgesellschaft</span></a></span> <a href=\"https://scipost.social/tags/IoP\" class=\"mention hashtag\" rel=\"tag\">#<span>IoP</span></a> <a href=\"https://scipost.social/tags/UZH\" class=\"mention hashtag\" rel=\"tag\">#<span>UZH</span></a> <a href=\"https://scipost.social/tags/DeltaITP\" class=\"mention hashtag\" rel=\"tag\">#<span>DeltaITP</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://scipost.social/system/media_attachments/files/114/070/434/561/479/593/original/68739d44fcdbb31c.png", "name": null, "blurhash": "U7S6Pm4oxt~q~p-:ofD%?axuayRj4nWBofxt", "width": 497, "height": 223 } ], "tag": [ { "type": "Mention", "href": "https://wisskomm.social/users/maxplanckgesellschaft", "name": "@maxplanckgesellschaft@wisskomm.social" }, { "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/codebases", "name": "#codebases" }, { "type": "Hashtag", "href": "https://scipost.social/tags/JagiellonianUniversity", "name": "#JagiellonianUniversity" }, { "type": "Hashtag", "href": "https://scipost.social/tags/UlmUniversity", "name": "#UlmUniversity" }, { "type": "Hashtag", "href": "https://scipost.social/tags/IoP", "name": "#IoP" }, { "type": "Hashtag", "href": "https://scipost.social/tags/uzh", "name": "#uzh" }, { "type": "Hashtag", "href": "https://scipost.social/tags/DeltaITP", "name": "#DeltaITP" } ], "replies": { "id": "https://scipost.social/users/physics/statuses/114070434683150418/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://scipost.social/users/physics/statuses/114070434683150418/replies?only_other_accounts=true&page=true", "partOf": "https://scipost.social/users/physics/statuses/114070434683150418/replies", "items": [] } } }