Calibre
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A green key on the record, left, is one Decision Insights added. It doesn't exist on the company's site or in a wire feed. The same key labels its row on the right, so you can match them directly. More on how DI enriches a record.
The record
This is what the machine sees: the exact JSON-LD an agent receives for this listing.
WebSite
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Organization
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BreadcrumbList
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{
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"item": "https://decisioninsights.ai/registry/calibre-enuv1s/",
"name": "Calibre",
"position": 4
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{
"@type": "ListItem",
"item": "https://decisioninsights.ai/projects/calibre/",
"name": "Calibre",
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SoftwareSourceCode
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{
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{
"@id": "https://decisioninsights.ai/projects/eclipse-ecal/#project",
"@type": "SoftwareSourceCode",
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"name": "digiKam"
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{
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{
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{
"@id": "https://decisioninsights.ai/projects/audacity/#project",
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"name": "Audacity"
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"name": "Alticast"
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{
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"name": "Binodan"
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"name": "Global Reach Internet Productions"
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"name": "GoHugo.io"
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"name": "Jekyll"
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"author": {
"@id": "https://decisioninsights.ai/registry/calibre-enuv1s/#organization",
"@type": "Organization",
"mainEntityOfPage": "https://decisioninsights.ai/registry/calibre-enuv1s/",
"name": "Calibre"
},
"dateModified": "2026-08-27T03:10:34Z",
"description": "Calibre is an open-source e-book management application for library organization, format conversion, device sync, and content serving.",
"keywords": [
"Open Source",
"Application",
"Enterprise",
"Metadata",
"Server"
],
"knowsAbout": [
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"name": "Application"
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{
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],
"mainEntityOfPage": "https://decisioninsights.ai/projects/calibre/",
"maintainer": {
"@id": "https://decisioninsights.ai/registry/calibre-enuv1s/#organization",
"@type": "Organization",
"mainEntityOfPage": "https://decisioninsights.ai/registry/calibre-enuv1s/",
"name": "Calibre"
},
"name": "Calibre",
"publisher": {
"@id": "https://decisioninsights.ai/registry/calibre-enuv1s/#organization",
"@type": "Organization",
"mainEntityOfPage": "https://decisioninsights.ai/registry/calibre-enuv1s/",
"name": "Calibre"
},
"url": "https://calibre-ebook.com/"
}
What we add
Topic graph
A wire service tags a release with a category, once. It doesn't maintain a durable graph over time. We connect them to a topic graph an agent can query.
Application https://decisioninsights.ai/term/application/
Enterprise https://decisioninsights.ai/term/enterprise/
Metadata https://decisioninsights.ai/term/metadata/
and 1 more
Counted facts
A protocol or open source project keeps no vendor list and publishes no figures of its own to check this against. This counts how it actually shows up across the graph -- articles that name it, the organizations named alongside it in those articles, similar projects, and organizations whose topic tags overlap with its own -- computed, not curated.
Related projects KDE Applications, LibreOffice Calc, Okular, Eclipse eCAL, digiKam, Cal.com, LibreOffice, Audacity
Related organizations Alticast, Binodan, Global Reach Internet Productions, GoHugo.io, HandBrake, Jekyll, Kaminario, MkDocs