diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6af7598..39ac8ef 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,6 +27,8 @@ and versions are tracked in the repo-root `VERSION` file.
   documented context instead of silently accepting and discarding them.
 - Isolated application run status per model while retaining the process-global
   last-status value as a compatibility view of the most recently active model.
+- Added a manifest-bound lock to standalone applications' embedded vendor copy
+  so it passes the same offline vendor verification as ordinary installs.
 - Prevented list, CLI, and application call paths from creating or overwriting
   caller-visible variables through undeclared internal scratch assignments.
 - Eliminated an intermittent macOS Bash process-group race in supervised
diff --git a/docs/vendor-workflow.md b/docs/vendor-workflow.md
index d367cff..1fae75d 100644
--- a/docs/vendor-workflow.md
+++ b/docs/vendor-workflow.md
@@ -28,8 +28,18 @@ scripts/vendor standalone . /tmp/base-bash-libs-v2 dist/app
 PATH="$PWD/dist/app/bin:$PATH" dist/app/bin/app --help
 ```
 
-The standalone payload contains the verified launcher and framework under its
-own root plus an auditable vendor copy and `BASE_BASH_STANDALONE.release`. The
-launcher resolves its colocated `lib/bash` tree, so runtime network access and
-ambient `BASE_BASH_LIBS_DIR` are unnecessary. No command downloads, executes,
-or evaluates remote content.
+The standalone payload contains two deterministic copies of the same verified
+framework bundle. The root copy is the authoritative runtime layout and is
+bound by `BASE_BASH_STANDALONE.release`; the launcher resolves its colocated
+`lib/bash` tree without ambient `BASE_BASH_LIBS_DIR`. The
+`vendor/base-bash-libs` copy is the authoritative audit/vendor layout and has
+its own `base-bash-libs.lock`, so consumers can verify it independently:
+
+```bash
+scripts/vendor verify dist/app/vendor/base-bash-libs
+```
+
+Both copies carry the same `MANIFEST.sha256`, version, and source commit from
+the input bundle. Standalone creation stages the complete payload and its lock
+before one atomic move. No command downloads, executes, or evaluates remote
+content.
diff --git a/scripts/vendor b/scripts/vendor
index 5db5abb..01105f8 100755
--- a/scripts/vendor
+++ b/scripts/vendor
@@ -156,8 +156,10 @@ rollback_bundle() {
 }
 
 verify_destination() {
-    local destination="$1" expected path actual lock_hash
-    [[ -f "$destination/base-bash-libs.lock" && -f "$destination/MANIFEST.sha256" ]] || {
+    local destination="$1" expected path actual lock_hash lock_version lock_commit
+    local bundle_version bundle_commit
+    [[ -f "$destination/base-bash-libs.lock" && -f "$destination/MANIFEST.sha256" &&
+        -f "$destination/BUNDLE.release" ]] || {
         error "vendor destination lacks lock or hash metadata: $destination"
         return 1
     }
@@ -178,6 +180,18 @@ verify_destination() {
         error 'vendor lock does not match MANIFEST.sha256'
         return 1
     }
+    lock_version="$(sed -n 's/^version=//p' "$destination/base-bash-libs.lock" | sed -n '1p')"
+    lock_commit="$(sed -n 's/^source_commit=//p' "$destination/base-bash-libs.lock" | sed -n '1p')"
+    bundle_version="$(sed -n 's/^source_version=//p' "$destination/BUNDLE.release" | sed -n '1p')"
+    bundle_commit="$(sed -n 's/^source_commit=//p' "$destination/BUNDLE.release" | sed -n '1p')"
+    [[ -n "$lock_version" && "$lock_version" == "$bundle_version" ]] || {
+        error 'vendor lock version does not match BUNDLE.release'
+        return 1
+    }
+    [[ -n "$lock_commit" && "$lock_commit" == "$bundle_commit" ]] || {
+        error 'vendor lock source commit does not match BUNDLE.release'
+        return 1
+    }
     printf 'Vendor lock and hashes are valid: %s\n' "$destination"
 }
 
@@ -202,10 +216,11 @@ standalone_bundle() {
     fi
     # Put the verified framework at the standalone root so the copied
     # launcher resolves lib/bash without ambient environment variables, and
-    # retain an explicit vendor copy for provenance/audit consumers.
+    # retain an independently locked vendor copy for provenance/audit consumers.
     if ! copy_tree "$framework_bundle" "$temporary" ||
         ! mkdir -p "$temporary/vendor/base-bash-libs" "$temporary/bin" ||
         ! copy_tree "$framework_bundle" "$temporary/vendor/base-bash-libs" ||
+        ! write_lock "$temporary/vendor/base-bash-libs" "$framework_bundle" standalone ||
         ! cp -- "$framework_bundle/bin/base-bash" "$temporary/bin/base-bash" ||
         ! chmod +x "$temporary/bin/base-bash" "$temporary/bin/app"; then
         rm -rf -- "$temporary"
diff --git a/tests/vendor.bats b/tests/vendor.bats
index d86b36b..37d0e6b 100644
--- a/tests/vendor.bats
+++ b/tests/vendor.bats
@@ -48,7 +48,14 @@ setup() {
     [ "$status" -eq 0 ]
     [ -x "$standalone/bin/base-bash" ]
     [ -x "$standalone/bin/app" ]
-    [ -f "$standalone/vendor/base-bash-libs/base-bash-libs.lock" ] || true
+    [ -f "$standalone/vendor/base-bash-libs/base-bash-libs.lock" ]
+    bats_run "$BASE_REPO_ROOT/scripts/vendor" verify "$standalone/vendor/base-bash-libs"
+    [ "$status" -eq 0 ]
+    [[ "$output" == *"Vendor lock and hashes are valid"* ]]
+    [ "$(sed -n 's/^version=//p' "$standalone/vendor/base-bash-libs/base-bash-libs.lock")" = \
+        "$(sed -n 's/^source_version=//p' "$standalone/vendor/base-bash-libs/BUNDLE.release")" ]
+    [ "$(sed -n 's/^source_commit=//p' "$standalone/vendor/base-bash-libs/base-bash-libs.lock")" = \
+        "$(sed -n 's/^source_commit=//p' "$standalone/vendor/base-bash-libs/BUNDLE.release")" ]
     bats_run env PATH="$standalone/bin:$PATH" "$standalone/bin/app" run
     [ "$status" -eq 0 ]
     [[ "$output" == *"hello=world"* ]]