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://mast.hpc.social/users/hpcnotes/statuses/114654170228117708",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2025-06-09T15:43:18Z",
"url": "https://mast.hpc.social/@hpcnotes/114654170228117708",
"attributedTo": "https://mast.hpc.social/users/hpcnotes",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://mast.hpc.social/users/hpcnotes/followers"
],
"sensitive": false,
"atomUri": "https://mast.hpc.social/users/hpcnotes/statuses/114654170228117708",
"inReplyToAtomUri": null,
"conversation": "tag:mast.hpc.social,2025-06-09:objectId=18241212:objectType=Conversation",
"content": "<p>Provocative question to debate at <a href=\"https://mast.hpc.social/tags/ISC25\" class=\"mention hashtag\" rel=\"tag\">#<span>ISC25</span></a> - in talks, meetings, booths, over beers:</p><p>What is so special about <a href=\"https://mast.hpc.social/tags/FP64\" class=\"mention hashtag\" rel=\"tag\">#<span>FP64</span></a> that science holds it as a gold standard?</p><p>If <a href=\"https://mast.hpc.social/tags/HPC\" class=\"mention hashtag\" rel=\"tag\">#<span>HPC</span></a> had never got as far as FP64, eg had got stuck at FP32, surely we would still have been able to do science?</p>",
"contentMap": {
"en": "<p>Provocative question to debate at <a href=\"https://mast.hpc.social/tags/ISC25\" class=\"mention hashtag\" rel=\"tag\">#<span>ISC25</span></a> - in talks, meetings, booths, over beers:</p><p>What is so special about <a href=\"https://mast.hpc.social/tags/FP64\" class=\"mention hashtag\" rel=\"tag\">#<span>FP64</span></a> that science holds it as a gold standard?</p><p>If <a href=\"https://mast.hpc.social/tags/HPC\" class=\"mention hashtag\" rel=\"tag\">#<span>HPC</span></a> had never got as far as FP64, eg had got stuck at FP32, surely we would still have been able to do science?</p>"
},
"attachment": [],
"tag": [
{
"type": "Hashtag",
"href": "https://mast.hpc.social/tags/isc25",
"name": "#isc25"
},
{
"type": "Hashtag",
"href": "https://mast.hpc.social/tags/fp64",
"name": "#fp64"
},
{
"type": "Hashtag",
"href": "https://mast.hpc.social/tags/hpc",
"name": "#hpc"
}
],
"replies": {
"id": "https://mast.hpc.social/users/hpcnotes/statuses/114654170228117708/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://mast.hpc.social/users/hpcnotes/statuses/114654170228117708/replies?only_other_accounts=true&page=true",
"partOf": "https://mast.hpc.social/users/hpcnotes/statuses/114654170228117708/replies",
"items": []
}
},
"likes": {
"id": "https://mast.hpc.social/users/hpcnotes/statuses/114654170228117708/likes",
"type": "Collection",
"totalItems": 5
},
"shares": {
"id": "https://mast.hpc.social/users/hpcnotes/statuses/114654170228117708/shares",
"type": "Collection",
"totalItems": 2
}
}