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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{
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"toot": "http://joinmastodon.org/ns#",
"votersCount": "toot:votersCount",
"blurhash": "toot:blurhash",
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"id": "https://sigmoid.social/users/isws/statuses/114652441813057013",
"type": "Note",
"summary": null,
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"published": "2025-06-09T08:23:45Z",
"url": "https://sigmoid.social/@isws/114652441813057013",
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"content": "<p>In his keynote, Frank van Harmelen is recommending the following book by Turing Award winner Leslie Valiant: The Importance of Being Educable - A New Theory of Human Uniqueness.<br />Valiant argues argues that in the age of AI (and current developments in LLMs) understanding the nature of our own educability is crucial to safeguarding our future. </p><p><a href=\"https://sigmoid.social/tags/isws2025\" class=\"mention hashtag\" rel=\"tag\">#<span>isws2025</span></a> <a href=\"https://sigmoid.social/tags/keynote\" class=\"mention hashtag\" rel=\"tag\">#<span>keynote</span></a> <a href=\"https://sigmoid.social/tags/llms\" class=\"mention hashtag\" rel=\"tag\">#<span>llms</span></a> <a href=\"https://sigmoid.social/tags/AI\" class=\"mention hashtag\" rel=\"tag\">#<span>AI</span></a> <a href=\"https://sigmoid.social/tags/knowledgegraphs\" class=\"mention hashtag\" rel=\"tag\">#<span>knowledgegraphs</span></a> <a href=\"https://sigmoid.social/tags/semanticweb\" class=\"mention hashtag\" rel=\"tag\">#<span>semanticweb</span></a> <a href=\"https://sigmoid.social/tags/intelligence\" class=\"mention hashtag\" rel=\"tag\">#<span>intelligence</span></a> <a href=\"https://sigmoid.social/tags/summerschool\" class=\"mention hashtag\" rel=\"tag\">#<span>summerschool</span></a> <a href=\"https://sigmoid.social/tags/philosophy\" class=\"mention hashtag\" rel=\"tag\">#<span>philosophy</span></a></p>",
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"name": "Book cover of Leslie Valiants book: The Importance of Being Educable. The book cover is simple plain cyan coloured and you see a pixelised cursor pointer in the lower part.",
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{
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{
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{
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{
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{
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"replies": {
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"shares": {
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