{"id":6543,"date":"2026-10-07T16:16:24","date_gmt":"2026-10-07T23:16:24","guid":{"rendered":"https:\/\/xn--y9aq2bc.com\/?p=6543"},"modified":"2026-10-07T16:16:24","modified_gmt":"2026-10-07T23:16:24","slug":"antimony-chromium-based-browser","status":"publish","type":"post","link":"https:\/\/xn--y9aq2bc.com\/?p=6543","title":{"rendered":"Antimony (chromium based browser)"},"content":{"rendered":"<div class=\"taxonomy-category wp-block-post-terms\"><span class=\"wp-block-post-terms__prefix\">Category: <\/span><a href=\"https:\/\/xn--y9aq2bc.com\/?cat=242\" rel=\"tag\">Software Release<\/a><\/div>\n\n\n<h1 class=\"wp-block-heading\">Antimony r2: 2 architectures, 2 package managers, new official builds, for a browser that says no thanks to AI content<\/h1>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">The short version<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Antimony is a Chromium fork built by yubi-OS that refuses to ship AI-generated content to you by default. Today we cut our first real release: <strong>antimony-v153.0.8010.36-r2<\/strong>, with installable packages for four platforms, official optimized builds, and a signed release attestation. It&#8217;s free, it&#8217;s open, and it&#8217;s the first shippable piece of the browser stack we&#8217;re building for <a href=\"https:\/\/github.com\/yubi-OS\/yubiOS\">yubiOS<\/a>, our FIDO2-first immutable operating system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Grab it here:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Package<\/th><th>Arch<\/th><th>Size<\/th><th>SHA256 (first 12)<\/th><\/tr><\/thead><tbody><tr><td><a href=\"https:\/\/github.com\/yubi-OS\/chromium-provenance\/releases\/download\/antimony-v153.0.8010.36-r2\/antimony-stable_153.0.8010.36-1_amd64.deb\">antimony-stable_153.0.8010.36-1_amd64.deb<\/a><\/td><td>x86_64<\/td><td>121 MB<\/td><td><code>3ffedd4165db<\/code><\/td><\/tr><tr><td><a href=\"https:\/\/github.com\/yubi-OS\/chromium-provenance\/releases\/download\/antimony-v153.0.8010.36-r2\/antimony-stable-153.0.8010.36-1.x86_64.rpm\">antimony-stable-153.0.8010.36-1.x86_64.rpm<\/a><\/td><td>x86_64<\/td><td>122 MB<\/td><td><code>cdfc72060e48<\/code><\/td><\/tr><tr><td><a href=\"https:\/\/github.com\/yubi-OS\/chromium-provenance\/releases\/download\/antimony-v153.0.8010.36-r2\/antimony-stable_153.0.8010.36-1_arm64.deb\">antimony-stable_153.0.8010.36-1_arm64.deb<\/a><\/td><td>ARM64<\/td><td>108 MB<\/td><td><code>1046f0f5c809<\/code><\/td><\/tr><tr><td><a href=\"https:\/\/github.com\/yubi-OS\/chromium-provenance\/releases\/download\/antimony-v153.0.8010.36-r2\/antimony-stable-153.0.8010.36-1.aarch64.rpm\">antimony-stable-153.0.8010.36-1.aarch64.rpm<\/a><\/td><td>ARM64<\/td><td>109 MB<\/td><td><code>5472c7a92a9d<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Every package has its full SHA256 in the release notes. There&#8217;s also a <a href=\"https:\/\/github.com\/yubi-OS\/chromium-provenance\/attestations\/53741870\/download\">release attestation (JSON)<\/a> so you can verify what you downloaded is what the build pipeline produced.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Antimony actually does<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Chromium 153.0.8010.36 under the hood, with a provenance gate patched in at the engine layer. Concretely:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>AI-content blocking with a real UI.<\/strong> Three modes: off, soft-block (AI images get swapped for notices you can allow per page), and full block (navigations with AI-content evidence get an interstitial, like the safe-browsing page). Per-origin exemptions live in <code>chrome:\/\/settings\/provenance<\/code>, not in a config file.<\/li>\n\n\n\n<li><strong>C2PA inspection in-process.<\/strong> The gate reads C2PA manifests (JPEG APP11, WebP RIFF) inside the browser&#8217;s data decoder, no extension or external service. Images carrying an <code>algorithmicMedia<\/code> AI claim get flagged.<\/li>\n\n\n\n<li><strong>The AI Mode surface is gone.<\/strong> No omnibox AI chip, no AI menu entries, no AI settings page. The kill switch sits at the eligibility check every entry point funnels through.<\/li>\n\n\n\n<li><strong>A provenance chip in the omnibox.<\/strong> When a page carries AI-content evidence, a security-icon chip lights up. Click it and you land in the provenance settings.<\/li>\n\n\n\n<li><strong>On-device AI model blocking is a separate toggle.<\/strong> If you don&#8217;t want the browser&#8217;s built-in Writer\/Rewriter\/Summarizer APIs available to pages at all, flip it off independently of image blocking.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The rule we hold ourselves to: the browser never claims &#8220;human-verified.&#8221; Classifier-only blocks need high confidence and stay user-overridable. That constraint is written into the repo&#8217;s CONSTRAINTS.md, not just the marketing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What changed in r2<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This is the difference between &#8220;we built something&#8221; and &#8220;you can install something.&#8221;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Official builds.<\/strong> r2 is built with <code>is_official_build=true<\/code>: thin LTO, CFI, stripped binaries. The inner chrome binary ships with zero symtab sections. r1&#8217;s unofficial amd64 deb was 581 MB; the r2 official one is 121 MB.<\/li>\n\n\n\n<li><strong>Four platforms.<\/strong> deb and RPM for both x86_64 and ARM64. The RPM targets are new territory for us, and the ARM64 packages build on real ARM64 hardware, not an emulator.<\/li>\n\n\n\n<li><strong>Tested on real hardware.<\/strong> The amd64 package was installed and run on actual x86_64 machines before this release. Not a CI-green-and-hope.<\/li>\n\n\n\n<li><strong>Release attestation.<\/strong> The release carries a provenance attestation asset, same supply-chain posture we apply to yubiOS images.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Why a browser for an OS that doesn&#8217;t exist yet<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">yubiOS is our planned operating system: immutable, bootc-based, with a hardware YubiKey as the root of trust at every boundary. Every trust decision in yubiOS is verified before it runs, nothing asks you to trust an author. A browser that lets any webpage present machine-generated content as human-made breaks that posture at the most-used surface on the machine.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So Antimony ships now, free, as a standalone offering. Use it on any Linux distro today. When yubiOS arrives, the browser already holds the same standard the rest of the system will.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What&#8217;s next<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Signature validation for C2PA manifests (currently we inspect, not verify), TrustMark and SynthID detectors joining the stack, and the packaging follow-ups. The full patch series (0001 through 0022) is public in <a href=\"https:\/\/github.com\/yubi-OS\/chromium-provenance\">yubi-OS\/chromium-provenance<\/a>, pinned to the Chromium 153.0.8010.36 mirror.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Built by yubi-OS. Questions or wanna get involved: shant@omniteck.com.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Antimony r2: 2 architectures, 2 package managers, new official builds, for a browser that says no thanks to AI content The short version Antimony is a Chromium fork built by yubi-OS that refuses to ship AI-generated content to you by default. Today we cut our first real release: antimony-v153.0.8010.36-r2, with installable packages for four platforms, &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/xn--y9aq2bc.com\/?p=6543\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Antimony (chromium based browser)&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"chat","meta":{"footnotes":""},"categories":[242],"tags":[],"class_list":["post-6543","post","type-post","status-publish","format-chat","hentry","category-software-release","post_format-post-format-chat"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/xn--y9aq2bc.com\/index.php?rest_route=\/wp\/v2\/posts\/6543","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xn--y9aq2bc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xn--y9aq2bc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xn--y9aq2bc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xn--y9aq2bc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6543"}],"version-history":[{"count":1,"href":"https:\/\/xn--y9aq2bc.com\/index.php?rest_route=\/wp\/v2\/posts\/6543\/revisions"}],"predecessor-version":[{"id":6545,"href":"https:\/\/xn--y9aq2bc.com\/index.php?rest_route=\/wp\/v2\/posts\/6543\/revisions\/6545"}],"wp:attachment":[{"href":"https:\/\/xn--y9aq2bc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6543"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xn--y9aq2bc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6543"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xn--y9aq2bc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6543"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}