google · taknira · Aug 27, 2026 · Aug 26, 2026 · Aug 27, 2026
@@ -34,7 +34,7 @@ <h2 class="headline4 gpt-2 gmb-2">Key Information</h2>
 
       <h2 class="headline4 gpt-2 gmb-2">Call for Presentations</h2>
       <p class="gmb-2">
-        The Call for Presentations is now open! Please submit your proposals using the <a href="https://docs.google.com/forms/d/e/1FAIpQLSds5HdEVXDssOKYETEEMoTbveqJe8i2QyPpKPtXFpXCd5-cXw/viewform">CFP form</a>.
+        The CFP is now closed. Talks that have been accepted can be seen <a href="/summit2026/talks">here</a>.
       </p>
 
       <h2 class="headline4 gpt-2 gmb-2">Timeline</h2>

@@ -0,0 +1,44 @@
+---
+url: /summit2026/talks
+layout: index
+title: "Transparency.dev Summit 2026 Confirmed Talks"
+description: "Talks that have been confirmed for the Transparency.dev Summit 2026"
+---
+<section class="glue-page gmt-6 gmb-7">
+  <h1 class="headline2 sm:text-center gmb-4">
+    <div class="eyebrow">Transparency.dev Summit</div>
+    Confirmed Talks
+  </h1>
+  <div class="glue-grid gmt-4 gmb-2">
+    <div class="col-span-4 sm:col-span-8 sm:col-start-3">
+      <table class="w-full text-sm text-left rtl:text-right text-gray-500 dark:text-gray-400 gmb-2">
+        <tbody>
+          <tr class="border-b border-gray-200 dark:border-gray-700">
+            <td class="px-6 py-3">
+              Matthew McPherrin
+            </td>
+            <td class="px-6 py-3">
+              <a href="/summit2026/talks/le-mtcs.html">How Let's Encrypt is deploying Merkle Tree Certificates</a>
+            </td>
+          </tr>
+          <tr class="border-b border-gray-200 dark:border-gray-700">
+            <td class="px-6 py-3">
+              Hayden Blauzvern
+            </td>
+            <td class="px-6 py-3">
+              <a href="/summit2026/talks/sigstore.html">Simplicity through Transparency: How the PQC Migration is Streamlining Sigstore</a>
+            </td>
+          </tr>
+          <tr class="border-b border-gray-200 dark:border-gray-700">
+            <td class="px-6 py-3">
+              Ben Birt
+            </td>
+            <td class="px-6 py-3">
+              <a href="/summit2026/talks/git-ratchet.html">Git-ratchet: tooling for Git commit transparency</a>
+            </td>
+          </tr>
+        </tbody>
+      </table>
+    </div>
+  </div>
+</section>
@@ -0,0 +1,33 @@
+---
+url: summit2026/talks/git-ratchet.html
+layout: summittalk
+title: "Git-ratchet: tooling for Git commit transparency"
+topImage:
+type:
+room:
+start:
+speaker: Ben Birt
+speakerTitle:
+---
+
+<div class="font-google font-medium">
+
+Dependents of Git repositories often depend directly on a
+branch or tag. Unfortunately, without taking further precautions, this
+exposes those dependents to attack by any party authorised to change the
+target commits of those branches or tags. Worse, those attacks can then be
+hidden by scrubbing the evidence - by repointing the branch or tag back to
+a legitimate commit. Git-ratchet is a tool which dependents can use to
+enforce that upstream Git repository owners are transparent about their
+branch and tag state (and how it evolves over time) - and it uses witnesses
+to prevent split-view attacks on that commit transparency.
+
+---
+
+### Speaker
+
+Ben is a software engineer on Google's Oak team. He is part
+of the group that launched Google's new Private AI Compute (PAIC) platform
+and most recently set up PAIC's new Tessera-based binary transparency log.
+
+</div>
@@ -0,0 +1,30 @@
+---
+url: summit2026/talks/le-mtcs.html
+layout: summittalk
+title: "How Let's Encrypt is deploying Merkle Tree Certificates"
+topImage:
+type:
+room:
+start:
+speaker: Matthew McPherrin
+speakerTitle:
+---
+
+<div class="font-google font-medium">
+
+Let's Encrypt is working on launching Merkle Tree Certificates. In this talk,
+we'll discuss how we've added Merkle Tree certificates to our Boulder CA
+software, how we're serving our logs, and the testing, monitoring, and disaster
+planning we're doing to ship a production-quality CA the world can rely on.
+We'll compare running an MTCA and mirror to our previous ACME CA and static CT
+logs, and what lessons from the past have informed our future architecture.
+
+---
+
+### Speaker
+
+Matthew McPherrin is the technical lead of the Let's Encrypt site reliability
+engineering team, which runs the Let’s Encrypt Certificate Authority and
+Certificate Transparency logs.
+
+</div>
@@ -0,0 +1,43 @@
+---
+url: summit2026/talks/sigstore.html
+layout: summittalk
+title: "Simplicity through Transparency: How the PQC Migration is Streamlining Sigstore"
+topImage:
+type:
+room:
+start:
+speaker: Hayden Blauzvern
+speakerTitle:
+---
+
+<div class="font-google font-medium">
+
+The transition to post-quantum cryptography is an emerging necessity, but
+PQC algorithms like ML-DSA introduce a significant hurdle for signing: keys
+and signatures are orders of magnitude larger, ballooning metadata, egress
+and storage costs for transparency ecosystems.
+
+In this talk, we present the design for PQC for Sigstore, showing how
+migrating to quantum-resistant algorithms is a greenfield opportunity to
+drastically simplify artifact signing and verification with Sigstore.
+Instead of just swapping out classical algorithms, we leveraged this unique
+opportunity to revisit the system architecture and focus the design around
+the transparency log as the primary enabler of simplicity and auditability.
+
+Sigstore will provide "keyless" identity-bound signatures rooted in
+transparency. We'll explore how this shift shrinks verification metadata
+down to just a signed checkpoint while still preserving Sigstore's security
+and threat models. Finally, we will discuss how a new leaf format elegantly
+solves PQC signing algorithm storage overhead while concurrently preventing
+log poisoning and preserving user privacy.
+
+---
+
+### Speaker
+
+Hayden Blauzvern is a technical lead on Google’s Open Source Security
+Team, focused on making open-source software supply chain more secure and
+auditable. Hayden is a maintainer and the community chair on the Sigstore
+project.
+
+</div>