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",
"https://w3id.org/security/v1",
{
"manuallyApprovesFollowers": "as:manuallyApprovesFollowers",
"toot": "http://joinmastodon.org/ns#",
"featured": {
"@id": "toot:featured",
"@type": "@id"
},
"featuredTags": {
"@id": "toot:featuredTags",
"@type": "@id"
},
"alsoKnownAs": {
"@id": "as:alsoKnownAs",
"@type": "@id"
},
"movedTo": {
"@id": "as:movedTo",
"@type": "@id"
},
"schema": "http://schema.org#",
"PropertyValue": "schema:PropertyValue",
"value": "schema:value",
"discoverable": "toot:discoverable",
"suspended": "toot:suspended",
"memorial": "toot:memorial",
"indexable": "toot:indexable",
"attributionDomains": {
"@id": "toot:attributionDomains",
"@type": "@id"
},
"Hashtag": "as:Hashtag",
"focalPoint": {
"@container": "@list",
"@id": "toot:focalPoint"
}
}
],
"id": "https://social.epfl.ch/users/herbst",
"type": "Person",
"following": "https://social.epfl.ch/users/herbst/following",
"followers": "https://social.epfl.ch/users/herbst/followers",
"inbox": "https://social.epfl.ch/users/herbst/inbox",
"outbox": "https://social.epfl.ch/users/herbst/outbox",
"featured": "https://social.epfl.ch/users/herbst/collections/featured",
"featuredTags": "https://social.epfl.ch/users/herbst/collections/tags",
"preferredUsername": "herbst",
"name": "Michael Herbst",
"summary": "<p>Prof in <a href=\"https://social.epfl.ch/tags/mathematics\" class=\"mention hashtag\" rel=\"tag\">#<span>mathematics</span></a> and <a href=\"https://social.epfl.ch/tags/materials\" class=\"mention hashtag\" rel=\"tag\">#<span>materials</span></a> science at <a href=\"https://social.epfl.ch/tags/EPFL\" class=\"mention hashtag\" rel=\"tag\">#<span>EPFL</span></a>. Head of <span class=\"h-card\" translate=\"no\"><a href=\"https://social.epfl.ch/@MatMat\" class=\"u-url mention\">@<span>MatMat</span></a></span>. <a href=\"https://social.epfl.ch/tags/Research\" class=\"mention hashtag\" rel=\"tag\">#<span>Research</span></a> in <a href=\"https://social.epfl.ch/tags/atomistic\" class=\"mention hashtag\" rel=\"tag\">#<span>atomistic</span></a> simulations, density-functional theory (<a href=\"https://social.epfl.ch/tags/dft\" class=\"mention hashtag\" rel=\"tag\">#<span>dft</span></a>). Error control, <a href=\"https://social.epfl.ch/tags/uncertainty\" class=\"mention hashtag\" rel=\"tag\">#<span>uncertainty</span></a> propagation from <a href=\"https://social.epfl.ch/tags/simulation\" class=\"mention hashtag\" rel=\"tag\">#<span>simulation</span></a> to property predictions, <a href=\"https://social.epfl.ch/tags/interdisciplinary\" class=\"mention hashtag\" rel=\"tag\">#<span>interdisciplinary</span></a> <a href=\"https://social.epfl.ch/tags/julialang\" class=\"mention hashtag\" rel=\"tag\">#<span>julialang</span></a> software for materials modelling</p>",
"url": "https://social.epfl.ch/@herbst",
"manuallyApprovesFollowers": false,
"discoverable": false,
"indexable": false,
"published": "2025-02-18T00:00:00Z",
"memorial": false,
"publicKey": {
"id": "https://social.epfl.ch/users/herbst#main-key",
"owner": "https://social.epfl.ch/users/herbst",
"publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxQWma0OyuUG+VdK77cNx\nEnl/kNw+tU/Ljil6l/NwO8oVnfBT7dZ6AQo6FnY+NK3rp+nWDkF0ULZ/m1VwvrI9\nml5bbspXjfS2/0RZil9kuIlo4Y+38fP2jgp0WelcA0LQ7JDrDIJEgNnIa62nd2Q+\neeauMbwcls7LSNmsMCb3ziw0jaPyNxJhBvDVLOSUitraITlhQUL9KrDozI26HpKX\nApq/cc8uMrqDPR1jUyBx+eErML2WfyH3p+Dzm3LCVTfGzoWClGD5zwHKDedBbdOC\n52D/gcx3suW8XSw9pwhhjhiMuN23pmZ16+MRj52chHyzr/Y5SC9jRovNcuWz4E/1\noQIDAQAB\n-----END PUBLIC KEY-----\n"
},
"tag": [
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/mathematics",
"name": "#mathematics"
},
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/materials",
"name": "#materials"
},
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/epfl",
"name": "#epfl"
},
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/research",
"name": "#research"
},
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/atomistic",
"name": "#atomistic"
},
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/dft",
"name": "#dft"
},
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/uncertainty",
"name": "#uncertainty"
},
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/simulation",
"name": "#simulation"
},
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/interdisciplinary",
"name": "#interdisciplinary"
},
{
"type": "Hashtag",
"href": "https://social.epfl.ch/tags/julialang",
"name": "#julialang"
}
],
"attachment": [
{
"type": "PropertyValue",
"name": "MatMat Group Website",
"value": "matmat.org"
}
],
"endpoints": {
"sharedInbox": "https://social.epfl.ch/inbox"
},
"icon": {
"type": "Image",
"mediaType": "image/jpeg",
"url": "https://social.epfl.ch/system/accounts/avatars/114/023/360/333/751/342/original/808944c95c07cb8f.jpg"
}
}