diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 99ff228..7d5c56d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,6 +35,13 @@ jobs:
       - name: Verify
         run: ./mvnw verify
 
+      - name: Verify Linux library is packaged
+        run: |
+          mainJar="$(find thegreeklab-core/target -maxdepth 1 -name 'thegreeklab-*.jar' \
+            ! -name '*-sources.jar' ! -name '*-javadoc.jar' | head -n 1)"
+          test -n "$mainJar"
+          jar tf "$mainJar" | grep -Fx "native/linux-x86_64/libpbivnorm.so"
+
       - name: Archive JaCoCo report
         uses: actions/upload-artifact@v4
         with:
diff --git a/README.md b/README.md
index 9e3ef36..e4fddee 100644
--- a/README.md
+++ b/README.md
@@ -83,7 +83,9 @@ not required.
 Release artifacts bundle `pbivnorm` for Windows x86-64, Linux x86-64, macOS
 x86-64 and macOS Apple Silicon. GitHub Actions builds the Linux and macOS
 libraries from `src/main/fortran/pbivnorm.f` and smoke-tests each native
-runtime. Other platforms can supply an external library through:
+runtime. CI validates native loading and JAR packaging on Windows x86-64,
+Linux x86-64, macOS x86-64 and macOS Apple Silicon. Other platforms can supply
+an external library through:
 
 ```text
 -Dthegreeklab.pbivnorm.path=/absolute/path/to/library