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", "Hashtag": "as:Hashtag", "blurhash": "toot:blurhash", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" } } ], "id": "https://mastodon.social/users/rexi/statuses/111684058639485722/replies", "type": "Collection", "first": { "id": "https://mastodon.social/users/rexi/statuses/111684058639485722/replies?page=true", "type": "CollectionPage", "next": "https://mastodon.social/users/rexi/statuses/111684058639485722/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/rexi/statuses/111684058639485722/replies", "items": [ { "id": "https://mastodon.social/users/rexi/statuses/111684128014124315", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.social/users/rexi/statuses/111684058639485722", "published": "2024-01-02T03:02:31Z", "url": "https://mastodon.social/@rexi/111684128014124315", "attributedTo": "https://mastodon.social/users/rexi", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/rexi/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/rexi/statuses/111684128014124315", "inReplyToAtomUri": "https://mastodon.social/users/rexi/statuses/111684058639485722", "conversation": "tag:mastodon.social,2024-01-02:objectId=611359690:objectType=Conversation", "content": "<p>first we need <a href=\"https://mastodon.social/tags/PlasticImportTariff\" class=\"mention hashtag\" rel=\"tag\">#<span>PlasticImportTariff</span></a> to cover *all* the costs of the crap coming in by the mega-tonne.</p><p>then we need a governmental base plastic price for every single plastic type in manufacture, and the USA needs to buy back as much now as it can -- literally while it&#39;s still cheap (the cost will only go up, if we&#39;re doing real math).</p><p><a href=\"https://mastodon.social/tags/PlasicBuyBackGuarantee\" class=\"mention hashtag\" rel=\"tag\">#<span>PlasicBuyBackGuarantee</span></a></p>", "contentMap": { "en": "<p>first we need <a href=\"https://mastodon.social/tags/PlasticImportTariff\" class=\"mention hashtag\" rel=\"tag\">#<span>PlasticImportTariff</span></a> to cover *all* the costs of the crap coming in by the mega-tonne.</p><p>then we need a governmental base plastic price for every single plastic type in manufacture, and the USA needs to buy back as much now as it can -- literally while it&#39;s still cheap (the cost will only go up, if we&#39;re doing real math).</p><p><a href=\"https://mastodon.social/tags/PlasicBuyBackGuarantee\" class=\"mention hashtag\" rel=\"tag\">#<span>PlasicBuyBackGuarantee</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/plasticimporttariff", "name": "#plasticimporttariff" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/plasicbuybackguarantee", "name": "#plasicbuybackguarantee" } ], "replies": { "id": "https://mastodon.social/users/rexi/statuses/111684128014124315/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/rexi/statuses/111684128014124315/replies?min_id=111695830051948776&page=true", "partOf": "https://mastodon.social/users/rexi/statuses/111684128014124315/replies", "items": [ "https://mastodon.social/users/rexi/statuses/111695830051948776" ] } }, "likes": { "id": "https://mastodon.social/users/rexi/statuses/111684128014124315/likes", "type": "Collection", "totalItems": 2 }, "shares": { "id": "https://mastodon.social/users/rexi/statuses/111684128014124315/shares", "type": "Collection", "totalItems": 1 } }, { "id": "https://mastodon.social/users/rexi/statuses/113870913956081667", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.social/users/rexi/statuses/111684058639485722", "published": "2025-01-22T07:50:56Z", "url": "https://mastodon.social/@rexi/113870913956081667", "attributedTo": "https://mastodon.social/users/rexi", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/rexi/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/rexi/statuses/113870913956081667", "inReplyToAtomUri": "https://mastodon.social/users/rexi/statuses/111684058639485722", "conversation": "tag:mastodon.social,2024-01-02:objectId=611359690:objectType=Conversation", "content": "<p><a href=\"https://phys.org/news/2025-01-peptides-microplastics.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">phys.org/news/2025-01-peptides</span><span class=\"invisible\">-microplastics.html</span></a></p><p>biophysical modeling to predict peptide-plastic interactions at atomic resolution, then validated the results with molecular dynamics simulations. The process was optimized with the addition of quantum annealing and reinforcement learning—specifically a method known as proximal policy optimization.</p><p>Using these tools, the authors identified a set of plastic-binding peptides with high affinities for polyethylene and polypropylene.</p>", "contentMap": { "en": "<p><a href=\"https://phys.org/news/2025-01-peptides-microplastics.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">phys.org/news/2025-01-peptides</span><span class=\"invisible\">-microplastics.html</span></a></p><p>biophysical modeling to predict peptide-plastic interactions at atomic resolution, then validated the results with molecular dynamics simulations. The process was optimized with the addition of quantum annealing and reinforcement learning—specifically a method known as proximal policy optimization.</p><p>Using these tools, the authors identified a set of plastic-binding peptides with high affinities for polyethylene and polypropylene.</p>" }, "attachment": [], "tag": [], "replies": { "id": "https://mastodon.social/users/rexi/statuses/113870913956081667/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/rexi/statuses/113870913956081667/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/rexi/statuses/113870913956081667/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/rexi/statuses/113870913956081667/likes", "type": "Collection", "totalItems": 2 }, "shares": { "id": "https://mastodon.social/users/rexi/statuses/113870913956081667/shares", "type": "Collection", "totalItems": 1 } }, { "id": "https://mastodon.social/users/rexi/statuses/114096792329264608", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.social/users/rexi/statuses/111684058639485722", "published": "2025-03-03T05:14:46Z", "url": "https://mastodon.social/@rexi/114096792329264608", "attributedTo": "https://mastodon.social/users/rexi", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/rexi/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/rexi/statuses/114096792329264608", "inReplyToAtomUri": "https://mastodon.social/users/rexi/statuses/111684058639485722", "conversation": "tag:mastodon.social,2024-01-02:objectId=611359690:objectType=Conversation", "content": "<p>this makes my head hurt.</p><p><a href=\"https://mastodon.social/tags/microplastics\" class=\"mention hashtag\" rel=\"tag\">#<span>microplastics</span></a></p>", "contentMap": { "en": "<p>this makes my head hurt.</p><p><a href=\"https://mastodon.social/tags/microplastics\" class=\"mention hashtag\" rel=\"tag\">#<span>microplastics</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/webp", "url": "https://files.mastodon.social/media_attachments/files/114/096/789/104/922/891/original/2f84f7e49d4739d6.webp", "name": "Cetorhinus Maximus\nAtlantic Basking Shark", "blurhash": "UA7LWExw9^M{cIR.oftRAwkW$%aJNfS2WBof", "focalPoint": [ 0, 0 ], "width": 640, "height": 360 } ], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/microplastics", "name": "#microplastics" } ], "replies": { "id": "https://mastodon.social/users/rexi/statuses/114096792329264608/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/rexi/statuses/114096792329264608/replies?min_id=114096801964067342&page=true", "partOf": "https://mastodon.social/users/rexi/statuses/114096792329264608/replies", "items": [ "https://mastodon.social/users/rexi/statuses/114096801964067342" ] } }, "likes": { "id": "https://mastodon.social/users/rexi/statuses/114096792329264608/likes", "type": "Collection", "totalItems": 0 }, "shares": { "id": "https://mastodon.social/users/rexi/statuses/114096792329264608/shares", "type": "Collection", "totalItems": 0 } }, { "id": "https://mastodon.social/users/rexi/statuses/114097044265323885", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.social/users/rexi/statuses/111684058639485722", "published": "2025-03-03T06:18:51Z", "url": "https://mastodon.social/@rexi/114097044265323885", "attributedTo": "https://mastodon.social/users/rexi", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/rexi/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/rexi/statuses/114097044265323885", "inReplyToAtomUri": "https://mastodon.social/users/rexi/statuses/111684058639485722", "conversation": "tag:mastodon.social,2024-01-02:objectId=611359690:objectType=Conversation", "content": "<p><a href=\"https://phys.org/news/2025-02-high-microplastic-bird-lungs-widespread.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">phys.org/news/2025-02-high-mic</span><span class=\"invisible\">roplastic-bird-lungs-widespread.html</span></a></p><p>(canary in the coal mine? magpie in a <a href=\"https://mastodon.social/tags/microplasticfog\" class=\"mention hashtag\" rel=\"tag\">#<span>microplasticfog</span></a>, maybe)</p><p>study found high concentrations of <a href=\"https://mastodon.social/tags/microplastics\" class=\"mention hashtag\" rel=\"tag\">#<span>microplastics</span></a> in bird lungs, with an average of 221 particles per species and 416 particles per gram of lung tissue. The most common types identified were <a href=\"https://mastodon.social/tags/chlorinatedpolyethylene\" class=\"mention hashtag\" rel=\"tag\">#<span>chlorinatedpolyethylene</span></a>, used for insulating pipes and wires, and <a href=\"https://mastodon.social/tags/butadiene\" class=\"mention hashtag\" rel=\"tag\">#<span>butadiene</span></a> rubber, a synthetic material in tires.</p>", "contentMap": { "en": "<p><a href=\"https://phys.org/news/2025-02-high-microplastic-bird-lungs-widespread.html\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">phys.org/news/2025-02-high-mic</span><span class=\"invisible\">roplastic-bird-lungs-widespread.html</span></a></p><p>(canary in the coal mine? magpie in a <a href=\"https://mastodon.social/tags/microplasticfog\" class=\"mention hashtag\" rel=\"tag\">#<span>microplasticfog</span></a>, maybe)</p><p>study found high concentrations of <a href=\"https://mastodon.social/tags/microplastics\" class=\"mention hashtag\" rel=\"tag\">#<span>microplastics</span></a> in bird lungs, with an average of 221 particles per species and 416 particles per gram of lung tissue. The most common types identified were <a href=\"https://mastodon.social/tags/chlorinatedpolyethylene\" class=\"mention hashtag\" rel=\"tag\">#<span>chlorinatedpolyethylene</span></a>, used for insulating pipes and wires, and <a href=\"https://mastodon.social/tags/butadiene\" class=\"mention hashtag\" rel=\"tag\">#<span>butadiene</span></a> rubber, a synthetic material in tires.</p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/microplasticfog", "name": "#microplasticfog" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/microplastics", "name": "#microplastics" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/chlorinatedpolyethylene", "name": "#chlorinatedpolyethylene" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/butadiene", "name": "#butadiene" } ], "replies": { "id": "https://mastodon.social/users/rexi/statuses/114097044265323885/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/rexi/statuses/114097044265323885/replies?min_id=114180314099890203&page=true", "partOf": "https://mastodon.social/users/rexi/statuses/114097044265323885/replies", "items": [ "https://mastodon.social/users/rexi/statuses/114180314099890203" ] } }, "likes": { "id": "https://mastodon.social/users/rexi/statuses/114097044265323885/likes", "type": "Collection", "totalItems": 1 }, "shares": { "id": "https://mastodon.social/users/rexi/statuses/114097044265323885/shares", "type": "Collection", "totalItems": 0 } }, { "id": "https://mastodon.social/users/rexi/statuses/114447117023784945", "type": "Note", "summary": null, "inReplyTo": "https://mastodon.social/users/rexi/statuses/111684058639485722", "published": "2025-05-04T02:06:57Z", "url": "https://mastodon.social/@rexi/114447117023784945", "attributedTo": "https://mastodon.social/users/rexi", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/rexi/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/rexi/statuses/114447117023784945", "inReplyToAtomUri": "https://mastodon.social/users/rexi/statuses/111684058639485722", "conversation": "tag:mastodon.social,2024-01-02:objectId=611359690:objectType=Conversation", "content": "<p>Think of this tiny culprit, billions of times over.</p><p>In all of their myriad variations; we’ve all thrown them away.</p><p>The function of AC plug protector served by this PE piece could easily have been served by cardboard, bamboo, or any number of lightweight, but <a href=\"https://mastodon.social/tags/carbonfriendly\" class=\"mention hashtag\" rel=\"tag\">#<span>carbonfriendly</span></a> alternatives.</p><p>They don’t even think of it, because the price of <a href=\"https://mastodon.social/tags/fossilplastics\" class=\"mention hashtag\" rel=\"tag\">#<span>fossilplastics</span></a> is so incredibly out of whack when its final disposal cost is ignored.</p><p><a href=\"https://mastodon.social/tags/plasticpackaging\" class=\"mention hashtag\" rel=\"tag\">#<span>plasticpackaging</span></a> <a href=\"https://mastodon.social/tags/plasticpollution\" class=\"mention hashtag\" rel=\"tag\">#<span>plasticpollution</span></a></p>", "contentMap": { "en": "<p>Think of this tiny culprit, billions of times over.</p><p>In all of their myriad variations; we’ve all thrown them away.</p><p>The function of AC plug protector served by this PE piece could easily have been served by cardboard, bamboo, or any number of lightweight, but <a href=\"https://mastodon.social/tags/carbonfriendly\" class=\"mention hashtag\" rel=\"tag\">#<span>carbonfriendly</span></a> alternatives.</p><p>They don’t even think of it, because the price of <a href=\"https://mastodon.social/tags/fossilplastics\" class=\"mention hashtag\" rel=\"tag\">#<span>fossilplastics</span></a> is so incredibly out of whack when its final disposal cost is ignored.</p><p><a href=\"https://mastodon.social/tags/plasticpackaging\" class=\"mention hashtag\" rel=\"tag\">#<span>plasticpackaging</span></a> <a href=\"https://mastodon.social/tags/plasticpollution\" class=\"mention hashtag\" rel=\"tag\">#<span>plasticpollution</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/jpeg", "url": "https://files.mastodon.social/media_attachments/files/114/447/087/365/930/875/original/fbecae0e49d8b95e.jpg", "name": "Plastic AC plug protector close-up.", "blurhash": "UG9@S6oz00RP%Mj[RjRj00Rj-;t7IUayfjt7", "focalPoint": [ 0, 0 ], "width": 1440, "height": 1080 } ], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/carbonfriendly", "name": "#carbonfriendly" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/fossilplastics", "name": "#fossilplastics" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/plasticpackaging", "name": "#plasticpackaging" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/plasticpollution", "name": "#plasticpollution" } ], "replies": { "id": "https://mastodon.social/users/rexi/statuses/114447117023784945/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/rexi/statuses/114447117023784945/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/rexi/statuses/114447117023784945/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/rexi/statuses/114447117023784945/likes", "type": "Collection", "totalItems": 4 }, "shares": { "id": "https://mastodon.social/users/rexi/statuses/114447117023784945/shares", "type": "Collection", "totalItems": 4 } } ] } }