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/pomarede/statuses/111012490271320497/replies", "type": "Collection", "first": { "id": "https://mastodon.social/users/pomarede/statuses/111012490271320497/replies?page=true", "type": "CollectionPage", "next": "https://mastodon.social/users/pomarede/statuses/111012490271320497/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/pomarede/statuses/111012490271320497/replies", "items": [ { "id": "https://mastodon.social/users/pomarede/statuses/111012531354712022", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.social/users/pomarede/statuses/111012490271320497", "published": "2023-09-05T12:26:39Z", "url": "https://mastodon.social/@pomarede/111012531354712022", "attributedTo": "https://mastodon.social/users/pomarede", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/pomarede/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/pomarede/statuses/111012531354712022", "inReplyToAtomUri": "https://mastodon.social/users/pomarede/statuses/111012490271320497", "conversation": "tag:mastodon.social,2023-09-05:objectId=529095729:objectType=Conversation", "content": "<p>Acoustic waves generated in the hot plasma of the early universe became imprinted in baryon fluctuations. The prediction was made in 1970 by Jim Peebles and others. Indirect evidence of the BAO phenomenom came in 2005 by observing a peak in the pair-wise separations of galaxies.</p><p><a href=\"https://mastodon.social/tags/ho\" class=\"mention hashtag\" rel=\"tag\">#<span>ho</span></a>&#39;oleilana <a href=\"https://mastodon.social/tags/hooleilana\" class=\"mention hashtag\" rel=\"tag\">#<span>hooleilana</span></a> <a href=\"https://mastodon.social/tags/cosmology\" class=\"mention hashtag\" rel=\"tag\">#<span>cosmology</span></a> <a href=\"https://mastodon.social/tags/bao\" class=\"mention hashtag\" rel=\"tag\">#<span>bao</span></a> <a href=\"https://mastodon.social/tags/baryon\" class=\"mention hashtag\" rel=\"tag\">#<span>baryon</span></a> <a href=\"https://mastodon.social/tags/acoustic\" class=\"mention hashtag\" rel=\"tag\">#<span>acoustic</span></a> <a href=\"https://mastodon.social/tags/oscillations\" class=\"mention hashtag\" rel=\"tag\">#<span>oscillations</span></a> <a href=\"https://mastodon.social/tags/astronomy\" class=\"mention hashtag\" rel=\"tag\">#<span>astronomy</span></a> <a href=\"https://mastodon.social/tags/astrophysics\" class=\"mention hashtag\" rel=\"tag\">#<span>astrophysics</span></a> <a href=\"https://mastodon.social/tags/astrodon\" class=\"mention hashtag\" rel=\"tag\">#<span>astrodon</span></a> <a href=\"https://mastodon.social/tags/universe\" class=\"mention hashtag\" rel=\"tag\">#<span>universe</span></a> <a href=\"https://mastodon.social/tags/space\" class=\"mention hashtag\" rel=\"tag\">#<span>space</span></a> <a href=\"https://mastodon.social/tags/science\" class=\"mention hashtag\" rel=\"tag\">#<span>science</span></a> <a href=\"https://mastodon.social/tags/research\" class=\"mention hashtag\" rel=\"tag\">#<span>research</span></a> <a href=\"https://mastodon.social/tags/discovery\" class=\"mention hashtag\" rel=\"tag\">#<span>discovery</span></a> <a href=\"https://mastodon.social/tags/physics\" class=\"mention hashtag\" rel=\"tag\">#<span>physics</span></a> <a href=\"https://mastodon.social/tags/theory\" class=\"mention hashtag\" rel=\"tag\">#<span>theory</span></a> <a href=\"https://mastodon.social/tags/bigbang\" class=\"mention hashtag\" rel=\"tag\">#<span>bigbang</span></a> <a href=\"https://mastodon.social/tags/lcdm\" class=\"mention hashtag\" rel=\"tag\">#<span>lcdm</span></a></p>", "contentMap": { "en": "<p>Acoustic waves generated in the hot plasma of the early universe became imprinted in baryon fluctuations. The prediction was made in 1970 by Jim Peebles and others. Indirect evidence of the BAO phenomenom came in 2005 by observing a peak in the pair-wise separations of galaxies.</p><p><a href=\"https://mastodon.social/tags/ho\" class=\"mention hashtag\" rel=\"tag\">#<span>ho</span></a>&#39;oleilana <a href=\"https://mastodon.social/tags/hooleilana\" class=\"mention hashtag\" rel=\"tag\">#<span>hooleilana</span></a> <a href=\"https://mastodon.social/tags/cosmology\" class=\"mention hashtag\" rel=\"tag\">#<span>cosmology</span></a> <a href=\"https://mastodon.social/tags/bao\" class=\"mention hashtag\" rel=\"tag\">#<span>bao</span></a> <a href=\"https://mastodon.social/tags/baryon\" class=\"mention hashtag\" rel=\"tag\">#<span>baryon</span></a> <a href=\"https://mastodon.social/tags/acoustic\" class=\"mention hashtag\" rel=\"tag\">#<span>acoustic</span></a> <a href=\"https://mastodon.social/tags/oscillations\" class=\"mention hashtag\" rel=\"tag\">#<span>oscillations</span></a> <a href=\"https://mastodon.social/tags/astronomy\" class=\"mention hashtag\" rel=\"tag\">#<span>astronomy</span></a> <a href=\"https://mastodon.social/tags/astrophysics\" class=\"mention hashtag\" rel=\"tag\">#<span>astrophysics</span></a> <a href=\"https://mastodon.social/tags/astrodon\" class=\"mention hashtag\" rel=\"tag\">#<span>astrodon</span></a> <a href=\"https://mastodon.social/tags/universe\" class=\"mention hashtag\" rel=\"tag\">#<span>universe</span></a> <a href=\"https://mastodon.social/tags/space\" class=\"mention hashtag\" rel=\"tag\">#<span>space</span></a> <a href=\"https://mastodon.social/tags/science\" class=\"mention hashtag\" rel=\"tag\">#<span>science</span></a> <a href=\"https://mastodon.social/tags/research\" class=\"mention hashtag\" rel=\"tag\">#<span>research</span></a> <a href=\"https://mastodon.social/tags/discovery\" class=\"mention hashtag\" rel=\"tag\">#<span>discovery</span></a> <a href=\"https://mastodon.social/tags/physics\" class=\"mention hashtag\" rel=\"tag\">#<span>physics</span></a> <a href=\"https://mastodon.social/tags/theory\" class=\"mention hashtag\" rel=\"tag\">#<span>theory</span></a> <a href=\"https://mastodon.social/tags/bigbang\" class=\"mention hashtag\" rel=\"tag\">#<span>bigbang</span></a> <a href=\"https://mastodon.social/tags/lcdm\" class=\"mention hashtag\" rel=\"tag\">#<span>lcdm</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/jpeg", "url": "https://files.mastodon.social/media_attachments/files/111/012/525/971/274/591/original/ef886685a3b0cca1.jpg", "name": "ames Peebles\n\nPhoto by Princeton University, Robert P. Matthews (1990) ", "blurhash": "UAJH%MIU9Z%24oxu-pWA%M%M~W9F?HM{4n-;", "focalPoint": [ 0, 0 ], "width": 2136, "height": 1488 } ], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/ho", "name": "#ho" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/hooleilana", "name": "#hooleilana" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/cosmology", "name": "#cosmology" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/bao", "name": "#bao" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/baryon", "name": "#baryon" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/acoustic", "name": "#acoustic" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/oscillations", "name": "#oscillations" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/astronomy", "name": "#astronomy" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/astrophysics", "name": "#astrophysics" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/Astrodon", "name": "#Astrodon" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/universe", "name": "#universe" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/space", "name": "#space" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/science", "name": "#science" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/research", "name": "#research" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/discovery", "name": "#discovery" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/physics", "name": "#physics" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/theory", "name": "#theory" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/bigbang", "name": "#bigbang" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/lcdm", "name": "#lcdm" } ], "replies": { "id": "https://mastodon.social/users/pomarede/statuses/111012531354712022/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/pomarede/statuses/111012531354712022/replies?min_id=111012572316453800&page=true", "partOf": "https://mastodon.social/users/pomarede/statuses/111012531354712022/replies", "items": [ "https://mastodon.social/users/pomarede/statuses/111012572316453800" ] } }, "likes": { "id": "https://mastodon.social/users/pomarede/statuses/111012531354712022/likes", "type": "Collection", "totalItems": 10 }, "shares": { "id": "https://mastodon.social/users/pomarede/statuses/111012531354712022/shares", "type": "Collection", "totalItems": 2 } } ] } }