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", "https://w3id.org/security/v1", { "manuallyApprovesFollowers": "as:manuallyApprovesFollowers", "toot": "http://joinmastodon.org/ns#", "featured": { "@id": "toot:featured", "@type": "@id" }, "featuredTags": { "@id": "toot:featuredTags", "@type": "@id" }, "alsoKnownAs": { "@id": "as:alsoKnownAs", "@type": "@id" }, "movedTo": { "@id": "as:movedTo", "@type": "@id" }, "schema": "http://schema.org#", "PropertyValue": "schema:PropertyValue", "value": "schema:value", "discoverable": "toot:discoverable", "suspended": "toot:suspended", "memorial": "toot:memorial", "indexable": "toot:indexable", "attributionDomains": { "@id": "toot:attributionDomains", "@type": "@id" }, "Hashtag": "as:Hashtag", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" } } ], "id": "https://tldr.nettime.org/users/katzenberger", "type": "Person", "following": "https://tldr.nettime.org/users/katzenberger/following", "followers": "https://tldr.nettime.org/users/katzenberger/followers", "inbox": "https://tldr.nettime.org/users/katzenberger/inbox", "outbox": "https://tldr.nettime.org/users/katzenberger/outbox", "featured": "https://tldr.nettime.org/users/katzenberger/collections/featured", "featuredTags": "https://tldr.nettime.org/users/katzenberger/collections/tags", "preferredUsername": "katzenberger", "name": "katzenberger", "summary": "<p>Rolf | ⁂ πŸ‡ΊπŸ‡¦πŸŸ£ | 🐧 ✊ <a href=\"https://tldr.nettime.org/tags/PenguinRebellion\" class=\"mention hashtag\" rel=\"tag\">#<span>PenguinRebellion</span></a><br />Please be advised that I make only limited use of Content Warnings. I also purge all followers from mastodon.social, from time to time.<br />Private account | English and German</p><p>My posts are licensed under Creative Commons Attribution-NonCommercial-ShareAlike (<a href=\"https://creativecommons.org/licenses/by-nc-sa/4.0/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">creativecommons.org/licenses/b</span><span class=\"invisible\">y-nc-sa/4.0/</span></a>) | <a href=\"https://tldr.nettime.org/tags/NoBot\" class=\"mention hashtag\" rel=\"tag\">#<span>NoBot</span></a> | <a href=\"https://tldr.nettime.org/tags/NoBridge\" class=\"mention hashtag\" rel=\"tag\">#<span>NoBridge</span></a></p><p>Profile picture: &quot;Globe with Meridians&quot; emoji<br />Header picture: Green fern leaves emerging from a black background</p>", "url": "https://tldr.nettime.org/@katzenberger", "manuallyApprovesFollowers": false, "discoverable": true, "indexable": true, "published": "2025-04-18T00:00:00Z", "memorial": false, "alsoKnownAs": [ "https://mastodon.de/users/katzenberger" ], "publicKey": { "id": "https://tldr.nettime.org/users/katzenberger#main-key", "owner": "https://tldr.nettime.org/users/katzenberger", "publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqzcJxexGlV9EHAJjq3Ou\noYwlL3+EGUTfMv5HMNsP9IiRC1migbHTEkBJerno2GBEzS5vC42T04huMeTNgt97\n9EdjohtoblEG5AbJAtsIkFxbiK0Hc7IA+R6/cRiN1yqJq+DaVUl6Yw28yVXmswvh\n0wbxZw2Z60oZY3nYEpqVo2hEdDq1qjq+x3NFkviOLwmbwGZYgnmYT71zQias4QvY\n5WrKd3f+p4XeehIFuZVel4OeE4gAfBahZG3kqeFF//IaE1jzpcC1BZyIfQInOdk/\nlaiBI1Qu5VvddwzHc7oGmszI8G+LFq6ladyp5mDG+bjoGatV0krsejaDNXPZVuDH\nDwIDAQAB\n-----END PUBLIC KEY-----\n" }, "tag": [ { "type": "Hashtag", "href": "https://tldr.nettime.org/tags/penguinrebellion", "name": "#penguinrebellion" }, { "type": "Hashtag", "href": "https://tldr.nettime.org/tags/nobot", "name": "#nobot" }, { "type": "Hashtag", "href": "https://tldr.nettime.org/tags/nobridge", "name": "#nobridge" } ], "attachment": [ { "type": "PropertyValue", "name": "Web", "value": "<a href=\"https://katzenberger.tel\" target=\"_blank\" rel=\"nofollow noopener noreferrer me\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">katzenberger.tel</span><span class=\"invisible\"></span></a>" }, { "type": "PropertyValue", "name": "Pronouns", "value": "he/him, er/ihn" }, { "type": "PropertyValue", "name": "Post deletion", "value": "after 3 months, unless boosted or favorited" }, { "type": "PropertyValue", "name": "Formerly", "value": "@social.tchncs.de, 2021-09-01 to 2024-06-15; @mastodon.de until 2025-04-18" } ], "endpoints": { "sharedInbox": "https://tldr.nettime.org/inbox" }, "icon": { "type": "Image", "mediaType": "image/png", "url": "https://tldr.nettime.org/system_nettime/accounts/avatars/114/358/425/045/386/311/original/db43c088d428b860.png" }, "image": { "type": "Image", "mediaType": "image/jpeg", "url": "https://tldr.nettime.org/system_nettime/accounts/headers/114/358/425/045/386/311/original/0005660cb3f55cdf.jpg" } }