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://helmholtz.social/users/FAIR_GSI_en/statuses/114663747103266549", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-06-11T08:18:50Z", "url": "https://helmholtz.social/@FAIR_GSI_en/114663747103266549", "attributedTo": "https://helmholtz.social/users/FAIR_GSI_en", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://helmholtz.social/users/FAIR_GSI_en/followers" ], "sensitive": false, "atomUri": "https://helmholtz.social/users/FAIR_GSI_en/statuses/114663747103266549", "inReplyToAtomUri": null, "conversation": "tag:helmholtz.social,2025-06-11:objectId=8111817:objectType=Conversation", "content": "<p>Join us for the latest lecture of our ongoing series &quot;Wissenschaft für Alle&quot;! <br />How do stars like our sun live and die? Harald Horneff (Volkssternwarte Darmstadt) has the answer for you in this recent talk ☀️⭐<br />German only!</p><p>Online or on site: Wednesday, 18 June 2025, 2 PM</p><p>Online event: <a href=\"https://gsi-fair.zoom.us/j/98465545116#success\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">gsi-fair.zoom.us/j/98465545116</span><span class=\"invisible\">#success</span></a><br />Meeting-Code: wfa<br />On site registration: <a href=\"https://indico.gsi.de/event/21167/registrations/6551/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">indico.gsi.de/event/21167/regi</span><span class=\"invisible\">strations/6551/</span></a><br />Location: GSI <a href=\"https://helmholtz.social/tags/Darmstadt\" class=\"mention hashtag\" rel=\"tag\">#<span>Darmstadt</span></a></p><p>© GSFC, NASA</p><p><a href=\"https://helmholtz.social/tags/lecture\" class=\"mention hashtag\" rel=\"tag\">#<span>lecture</span></a> <a href=\"https://helmholtz.social/tags/science\" class=\"mention hashtag\" rel=\"tag\">#<span>science</span></a> <a href=\"https://helmholtz.social/tags/Wissenschaftf%C3%BCrAlle\" class=\"mention hashtag\" rel=\"tag\">#<span>WissenschaftfürAlle</span></a> <a href=\"https://helmholtz.social/tags/WfA\" class=\"mention hashtag\" rel=\"tag\">#<span>WfA</span></a> <a href=\"https://helmholtz.social/tags/space\" class=\"mention hashtag\" rel=\"tag\">#<span>space</span></a></p>", "contentMap": { "en": "<p>Join us for the latest lecture of our ongoing series &quot;Wissenschaft für Alle&quot;! <br />How do stars like our sun live and die? Harald Horneff (Volkssternwarte Darmstadt) has the answer for you in this recent talk ☀️⭐<br />German only!</p><p>Online or on site: Wednesday, 18 June 2025, 2 PM</p><p>Online event: <a href=\"https://gsi-fair.zoom.us/j/98465545116#success\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">gsi-fair.zoom.us/j/98465545116</span><span class=\"invisible\">#success</span></a><br />Meeting-Code: wfa<br />On site registration: <a href=\"https://indico.gsi.de/event/21167/registrations/6551/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">indico.gsi.de/event/21167/regi</span><span class=\"invisible\">strations/6551/</span></a><br />Location: GSI <a href=\"https://helmholtz.social/tags/Darmstadt\" class=\"mention hashtag\" rel=\"tag\">#<span>Darmstadt</span></a></p><p>© GSFC, NASA</p><p><a href=\"https://helmholtz.social/tags/lecture\" class=\"mention hashtag\" rel=\"tag\">#<span>lecture</span></a> <a href=\"https://helmholtz.social/tags/science\" class=\"mention hashtag\" rel=\"tag\">#<span>science</span></a> <a href=\"https://helmholtz.social/tags/Wissenschaftf%C3%BCrAlle\" class=\"mention hashtag\" rel=\"tag\">#<span>WissenschaftfürAlle</span></a> <a href=\"https://helmholtz.social/tags/WfA\" class=\"mention hashtag\" rel=\"tag\">#<span>WfA</span></a> <a href=\"https://helmholtz.social/tags/space\" class=\"mention hashtag\" rel=\"tag\">#<span>space</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://helmholtz.social/system/media_attachments/files/114/663/683/326/882/372/original/2d4117fc22b3fe58.png", "name": null, "blurhash": "UZG@3yoeADoL}laybaay%ybH,;a}?Da|oLj@", "width": 1080, "height": 1350 } ], "tag": [ { "type": "Hashtag", "href": "https://helmholtz.social/tags/darmstadt", "name": "#darmstadt" }, { "type": "Hashtag", "href": "https://helmholtz.social/tags/lecture", "name": "#lecture" }, { "type": "Hashtag", "href": "https://helmholtz.social/tags/science", "name": "#science" }, { "type": "Hashtag", "href": "https://helmholtz.social/tags/wissenschaftfuralle", "name": "#wissenschaftfuralle" }, { "type": "Hashtag", "href": "https://helmholtz.social/tags/wfa", "name": "#wfa" }, { "type": "Hashtag", "href": "https://helmholtz.social/tags/space", "name": "#space" } ], "replies": { "id": "https://helmholtz.social/users/FAIR_GSI_en/statuses/114663747103266549/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://helmholtz.social/users/FAIR_GSI_en/statuses/114663747103266549/replies?only_other_accounts=true&page=true", "partOf": "https://helmholtz.social/users/FAIR_GSI_en/statuses/114663747103266549/replies", "items": [] } }, "likes": { "id": "https://helmholtz.social/users/FAIR_GSI_en/statuses/114663747103266549/likes", "type": "Collection", "totalItems": 2 }, "shares": { "id": "https://helmholtz.social/users/FAIR_GSI_en/statuses/114663747103266549/shares", "type": "Collection", "totalItems": 3 } }