diff --git a/CHANGELOG.d/1.3.0-focus-event-lineage-from-report-member.md b/CHANGELOG.d/1.3.0-focus-event-lineage-from-report-member.md
new file mode 100644
index 000000000..33f0436a9
--- /dev/null
+++ b/CHANGELOG.d/1.3.0-focus-event-lineage-from-report-member.md
@@ -0,0 +1,4 @@
+# 1.3.0 Focus Event Lineage from a report member
+
+Open Public post from the landed Demo Corp members and the popup Event
+Lineage heading takes focus. Home list opens do not.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 98bd39366..5e98c688b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,14 @@ All notable changes to this project are documented here. Format follows
 [Keep a Changelog](https://keepachangelog.com/en/1.1.0/); versioning follows
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.3.0] - 2026-08-17
+
+### Added
+
+- Opening Public post from the landed Demo Corp members focuses the
+  popup Event Lineage heading, matching the next-action copy. Home
+  post-list opens do not steal that focus. No TEPP theta is invented.
+
 ## [1.2.0] - 2026-08-17
 
 ### Added
diff --git a/frontend/package.json b/frontend/package.json
index 887fc38d4..0361d7c2b 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -1,7 +1,7 @@
 {
   "name": "frontend",
   "private": true,
-  "version": "1.2.0",
+  "version": "1.3.0",
   "type": "module",
   "scripts": {
     "dev": "vite",
diff --git a/frontend/src/App.test.tsx b/frontend/src/App.test.tsx
index 0ffdea3ac..5aa1b02dd 100644
--- a/frontend/src/App.test.tsx
+++ b/frontend/src/App.test.tsx
@@ -1470,6 +1470,7 @@ describe("App, authenticated", () => {
     // page, not a flat list -- two SVGs (home + popup) share the fork.
     expect(screen.getAllByLabelText("A-100 lineage").length).toBeGreaterThanOrEqual(2);
     expect(screen.getAllByLabelText("Open post: Pricing renegotiation follow-up").length).toBeGreaterThanOrEqual(2);
+    expect(document.getElementById("post-event-lineage")).not.toHaveFocus();
   });
 
   it("shows a seeded Ask exchange without an orchestrator round-trip", async () => {
@@ -2264,6 +2265,7 @@ describe("App, authenticated", () => {
       expect(
         screen.getAllByRole("heading", { name: "Event Lineage" }).length,
       ).toBeGreaterThanOrEqual(2);
+      expect(document.getElementById("post-event-lineage")).toHaveFocus();
     } finally {
       HTMLElement.prototype.scrollIntoView = originalScrollIntoView;
     }
@@ -2527,6 +2529,7 @@ describe("App, authenticated", () => {
     expect(screen.getByText("Constructive stance: 2")).toBeInTheDocument();
     expect(screen.getAllByText(/Ada West/).length).toBeGreaterThan(0);
     expect(screen.getAllByLabelText("A-100 lineage").length).toBeGreaterThanOrEqual(2);
+    expect(document.getElementById("post-event-lineage")).toHaveFocus();
   });
 
   it("lets post_admin rebuild the period report", async () => {
diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index 191e71dac..ce0f8a08a 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -1163,6 +1163,7 @@ function PostDetailPopup({
   canExtract,
   graph,
   liveBodyWarning,
+  focusEventLineage,
   onClose,
   onSelectPost,
 }: {
@@ -1171,6 +1172,7 @@ function PostDetailPopup({
   canExtract: boolean;
   graph: LineageGraph | null;
   liveBodyWarning?: string | null;
+  focusEventLineage?: boolean;
   onClose: () => void;
   onSelectPost?: (postId: string) => void;
 }) {
@@ -1231,6 +1233,15 @@ function PostDetailPopup({
     fetchPostVocEvidence(accessToken, postId).then(setVocEvidence).catch(() => setVocEvidence(null));
   }, [postId, accessToken]);
 
+  useEffect(() => {
+    if (!focusEventLineage || !post) {
+      return;
+    }
+    const heading = document.getElementById("post-event-lineage");
+    heading?.focus();
+    heading?.scrollIntoView?.({ block: "nearest" });
+  }, [focusEventLineage, post]);
+
   return (
     <div className="popup-backdrop" onClick={onClose}>
       <div className="popup-panel" onClick={(event) => event.stopPropagation()}>
@@ -1372,7 +1383,9 @@ function PostDetailPopup({
             />
 
             <section className="popup-section">
-              <h3>Event Lineage</h3>
+              <h3 id="post-event-lineage" tabIndex={-1}>
+                Event Lineage
+              </h3>
               <EventLineageSection
                 lineage={lineage}
                 graph={graph}
@@ -1573,6 +1586,7 @@ function analysisRunDigestPrefix(digest: string): string {
 type SelectPostOptions = {
   liveAfterCutoff?: boolean;
   knowledgeCutoff?: string;
+  fromReportMember?: boolean;
 };
 
 /**
@@ -2153,7 +2167,7 @@ function ReportsPanel({
 }: {
   accessToken: string;
   canRebuild: boolean;
-  onSelectPost: (postId: string) => void;
+  onSelectPost: (postId: string, options?: SelectPostOptions) => void;
   period: string;
   onSelectPeriod: (periodCode: string) => void;
   grouping: string;
@@ -2295,7 +2309,7 @@ function ReportsPanel({
                           ? "true"
                           : undefined
                       }
-                      onClick={() => onSelectPost(member.post_id)}
+                      onClick={() => onSelectPost(member.post_id, { fromReportMember: true })}
                     >
                       <span className="ticket-title">{member.post_title}</span>
                       <span className="post-badge">θ {member.theta_eap.toFixed(2)}</span>
@@ -2442,6 +2456,7 @@ function PostList({ accessToken }: { accessToken: string }) {
   const [openedGroupingKey, setOpenedGroupingKey] = useState<string | null>(null);
   const [openedGroupingLabel, setOpenedGroupingLabel] = useState<string | null>(null);
   const [landOnComparison, setLandOnComparison] = useState(false);
+  const [openedFromReportMember, setOpenedFromReportMember] = useState(false);
 
   function openReportFromAnalysisRun(
     periodCode: string,
@@ -2479,12 +2494,14 @@ function PostList({ accessToken }: { accessToken: string }) {
     setSelectedPostId(postId);
     setOpenedAfterCutoff(Boolean(options?.liveAfterCutoff));
     setOpenedCutoffIso(options?.knowledgeCutoff ?? null);
+    setOpenedFromReportMember(Boolean(options?.fromReportMember));
   }
 
   function closeSelectedPost() {
     setSelectedPostId(null);
     setOpenedAfterCutoff(false);
     setOpenedCutoffIso(null);
+    setOpenedFromReportMember(false);
   }
 
   useEffect(() => {
@@ -2572,6 +2589,7 @@ function PostList({ accessToken }: { accessToken: string }) {
           liveBodyWarning={
             openedAfterCutoff ? analysisRunOpenedBodyWarning(openedCutoffIso) : null
           }
+          focusEventLineage={openedFromReportMember}
           onClose={closeSelectedPost}
           onSelectPost={selectPost}
         />
diff --git a/lineageweave/__init__.py b/lineageweave/__init__.py
index 014176f1b..595ce60bf 100644
--- a/lineageweave/__init__.py
+++ b/lineageweave/__init__.py
@@ -55,4 +55,4 @@
     "sentence_excerpts",
 ]
 
-__version__ = "1.2.0"
+__version__ = "1.3.0"
diff --git a/pyproject.toml b/pyproject.toml
index aecbe001f..f346811ae 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "lineageweave"
-version = "1.2.0"
+version = "1.3.0"
 description = "Reconstructs git-branch-style lineage DAGs from scattered short records using multi-channel score fusion and LLM adjudication."
 readme = "README.md"
 license = { text = "MIT" }
diff --git a/uv.lock b/uv.lock
index 881676af2..ff19ac892 100644
--- a/uv.lock
+++ b/uv.lock
@@ -454,7 +454,7 @@ wheels = [
 
 [[package]]
 name = "lineageweave"
-version = "1.2.0"
+version = "1.3.0"
 source = { virtual = "." }
 dependencies = [
     { name = "certifi" },