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.
{
"@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"
}
],
"id": "https://mastodon.org.uk/users/mkwadee/statuses/114534751542555978",
"type": "Note",
"summary": null,
"inReplyTo": "https://mastodon.org.uk/users/mkwadee/statuses/114534748582382054",
"published": "2025-05-19T13:33:34Z",
"url": "https://mastodon.org.uk/@mkwadee/114534751542555978",
"attributedTo": "https://mastodon.org.uk/users/mkwadee",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://mastodon.org.uk/users/mkwadee/followers"
],
"sensitive": false,
"atomUri": "https://mastodon.org.uk/users/mkwadee/statuses/114534751542555978",
"inReplyToAtomUri": "https://mastodon.org.uk/users/mkwadee/statuses/114534748582382054",
"conversation": "tag:mastodon.org.uk,2025-05-19:objectId=165375091:objectType=Conversation",
"content": "<p>The above is only strictly true for “small” amplitudes. If the <a href=\"https://mastodon.org.uk/tags/pendulum\" class=\"mention hashtag\" rel=\"tag\">#<span>pendulum</span></a> is subject to large amplitudes, it is no longer governed by the simple linear differential equations alluded to above. Given that the rod remains rigid and no energy is dissipated, the pendulum <a href=\"https://mastodon.org.uk/tags/equations\" class=\"mention hashtag\" rel=\"tag\">#<span>equations</span></a> may still be solved exactly, though they are now <a href=\"https://mastodon.org.uk/tags/nonlinear\" class=\"mention hashtag\" rel=\"tag\">#<span>nonlinear</span></a>.</p><p><a href=\"https://mastodon.org.uk/tags/MyWork\" class=\"mention hashtag\" rel=\"tag\">#<span>MyWork</span></a> <a href=\"https://mastodon.org.uk/tags/CCBYSA\" class=\"mention hashtag\" rel=\"tag\">#<span>CCBYSA</span></a> <a href=\"https://mastodon.org.uk/tags/Mathematics\" class=\"mention hashtag\" rel=\"tag\">#<span>Mathematics</span></a> <a href=\"https://mastodon.org.uk/tags/ClassicalMechanics\" class=\"mention hashtag\" rel=\"tag\">#<span>ClassicalMechanics</span></a> <a href=\"https://mastodon.org.uk/tags/AppliedMathematics\" class=\"mention hashtag\" rel=\"tag\">#<span>AppliedMathematics</span></a> <a href=\"https://mastodon.org.uk/tags/Physics\" class=\"mention hashtag\" rel=\"tag\">#<span>Physics</span></a> <a href=\"https://mastodon.org.uk/tags/Animation\" class=\"mention hashtag\" rel=\"tag\">#<span>Animation</span></a></p>",
"contentMap": {
"en": "<p>The above is only strictly true for “small” amplitudes. If the <a href=\"https://mastodon.org.uk/tags/pendulum\" class=\"mention hashtag\" rel=\"tag\">#<span>pendulum</span></a> is subject to large amplitudes, it is no longer governed by the simple linear differential equations alluded to above. Given that the rod remains rigid and no energy is dissipated, the pendulum <a href=\"https://mastodon.org.uk/tags/equations\" class=\"mention hashtag\" rel=\"tag\">#<span>equations</span></a> may still be solved exactly, though they are now <a href=\"https://mastodon.org.uk/tags/nonlinear\" class=\"mention hashtag\" rel=\"tag\">#<span>nonlinear</span></a>.</p><p><a href=\"https://mastodon.org.uk/tags/MyWork\" class=\"mention hashtag\" rel=\"tag\">#<span>MyWork</span></a> <a href=\"https://mastodon.org.uk/tags/CCBYSA\" class=\"mention hashtag\" rel=\"tag\">#<span>CCBYSA</span></a> <a href=\"https://mastodon.org.uk/tags/Mathematics\" class=\"mention hashtag\" rel=\"tag\">#<span>Mathematics</span></a> <a href=\"https://mastodon.org.uk/tags/ClassicalMechanics\" class=\"mention hashtag\" rel=\"tag\">#<span>ClassicalMechanics</span></a> <a href=\"https://mastodon.org.uk/tags/AppliedMathematics\" class=\"mention hashtag\" rel=\"tag\">#<span>AppliedMathematics</span></a> <a href=\"https://mastodon.org.uk/tags/Physics\" class=\"mention hashtag\" rel=\"tag\">#<span>Physics</span></a> <a href=\"https://mastodon.org.uk/tags/Animation\" class=\"mention hashtag\" rel=\"tag\">#<span>Animation</span></a></p>"
},
"attachment": [],
"tag": [
{
"type": "Hashtag",
"href": "https://mastodon.org.uk/tags/pendulum",
"name": "#pendulum"
},
{
"type": "Hashtag",
"href": "https://mastodon.org.uk/tags/equations",
"name": "#equations"
},
{
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"href": "https://mastodon.org.uk/tags/nonlinear",
"name": "#nonlinear"
},
{
"type": "Hashtag",
"href": "https://mastodon.org.uk/tags/mywork",
"name": "#mywork"
},
{
"type": "Hashtag",
"href": "https://mastodon.org.uk/tags/ccbysa",
"name": "#ccbysa"
},
{
"type": "Hashtag",
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"name": "#mathematics"
},
{
"type": "Hashtag",
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"name": "#classicalmechanics"
},
{
"type": "Hashtag",
"href": "https://mastodon.org.uk/tags/appliedmathematics",
"name": "#appliedmathematics"
},
{
"type": "Hashtag",
"href": "https://mastodon.org.uk/tags/physics",
"name": "#physics"
},
{
"type": "Hashtag",
"href": "https://mastodon.org.uk/tags/animation",
"name": "#animation"
}
],
"replies": {
"id": "https://mastodon.org.uk/users/mkwadee/statuses/114534751542555978/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://mastodon.org.uk/users/mkwadee/statuses/114534751542555978/replies?min_id=114534752786065617&page=true",
"partOf": "https://mastodon.org.uk/users/mkwadee/statuses/114534751542555978/replies",
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]
}
},
"likes": {
"id": "https://mastodon.org.uk/users/mkwadee/statuses/114534751542555978/likes",
"type": "Collection",
"totalItems": 3
},
"shares": {
"id": "https://mastodon.org.uk/users/mkwadee/statuses/114534751542555978/shares",
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}
}