diff --git a/bin/pie b/bin/pie
index 947208fa..dbf10420 100755
--- a/bin/pie
+++ b/bin/pie
@@ -14,6 +14,7 @@ use Php\Pie\Command\RepositoryAddCommand;
 use Php\Pie\Command\RepositoryListCommand;
 use Php\Pie\Command\RepositoryRemoveCommand;
 use Php\Pie\Command\SelfUpdateCommand;
+use Php\Pie\Command\SelfVerifyCommand;
 use Php\Pie\Command\ShowCommand;
 use Php\Pie\Command\UninstallCommand;
 use Php\Pie\Util\PieVersion;
@@ -45,6 +46,7 @@ $application->setCommandLoader(new ContainerCommandLoader(
         'repository:remove' => RepositoryRemoveCommand::class,
         'uninstall' => UninstallCommand::class,
         'self-update' => SelfUpdateCommand::class,
+        'self-verify' => SelfVerifyCommand::class,
         'install-extensions-for-project' => InstallExtensionsForProjectCommand::class,
     ]
 ));
diff --git a/src/Command/SelfUpdateCommand.php b/src/Command/SelfUpdateCommand.php
index 4faf1e50..8f55101b 100644
--- a/src/Command/SelfUpdateCommand.php
+++ b/src/Command/SelfUpdateCommand.php
@@ -10,6 +10,7 @@
 use Php\Pie\ComposerIntegration\PieComposerFactory;
 use Php\Pie\ComposerIntegration\PieComposerRequest;
 use Php\Pie\ComposerIntegration\QuieterConsoleIO;
+use Php\Pie\File\FullPathToSelf;
 use Php\Pie\File\SudoFilePut;
 use Php\Pie\SelfManage\Update\FetchPieReleaseFromGitHub;
 use Php\Pie\SelfManage\Update\ReleaseMetadata;
@@ -24,14 +25,10 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 use function file_get_contents;
-use function getcwd;
 use function preg_match;
-use function realpath;
 use function sprintf;
 use function unlink;
 
-use const DIRECTORY_SEPARATOR;
-
 #[AsCommand(
     name: 'self-update',
     description: 'Self update PIE',
@@ -67,7 +64,7 @@ public function execute(InputInterface $input, OutputInterface $output): int
         if (! PieVersion::isPharBuild()) {
             $output->writeln('<comment>Aborting! You are not running a PHAR, cannot self-update.</comment>');
 
-            return 1;
+            return Command::FAILURE;
         }
 
         $targetPlatform = CommandHelper::determineTargetPlatformFromInputs($input, $output);
@@ -141,8 +138,7 @@ public function execute(InputInterface $input, OutputInterface $output): int
             return Command::FAILURE;
         }
 
-        $phpSelf        = $_SERVER['PHP_SELF'] ?? '';
-        $fullPathToSelf = $this->isAbsolutePath($phpSelf) ? $phpSelf : (getcwd() . DIRECTORY_SEPARATOR . $phpSelf);
+        $fullPathToSelf = (new FullPathToSelf())();
         $output->writeln(
             sprintf('Writing new version to %s', $fullPathToSelf),
             OutputInterface::VERBOSITY_VERBOSE,
@@ -153,21 +149,4 @@ public function execute(InputInterface $input, OutputInterface $output): int
 
         return Command::SUCCESS;
     }
-
-    private function isAbsolutePath(string $path): bool
-    {
-        if (realpath($path) === $path) {
-            return true;
-        }
-
-        if ($path === '' || $path === '.') {
-            return false;
-        }
-
-        if (preg_match('#^[a-zA-Z]:\\\\#', $path)) {
-            return true;
-        }
-
-        return $path[0] === '/' || $path[0] === '\\';
-    }
 }
diff --git a/src/Command/SelfVerifyCommand.php b/src/Command/SelfVerifyCommand.php
new file mode 100644
index 00000000..b012c3e0
--- /dev/null
+++ b/src/Command/SelfVerifyCommand.php
@@ -0,0 +1,89 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Php\Pie\Command;
+
+use Composer\Util\AuthHelper;
+use Composer\Util\HttpDownloader;
+use Php\Pie\ComposerIntegration\PieComposerFactory;
+use Php\Pie\ComposerIntegration\PieComposerRequest;
+use Php\Pie\ComposerIntegration\QuieterConsoleIO;
+use Php\Pie\File\BinaryFile;
+use Php\Pie\File\FullPathToSelf;
+use Php\Pie\SelfManage\Update\ReleaseMetadata;
+use Php\Pie\SelfManage\Verify\FailedToVerifyRelease;
+use Php\Pie\SelfManage\Verify\VerifyPieReleaseUsingAttestation;
+use Php\Pie\Util\PieVersion;
+use Psr\Container\ContainerInterface;
+use Symfony\Component\Console\Attribute\AsCommand;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+use function sprintf;
+
+#[AsCommand(
+    name: 'self-verify',
+    description: 'Self verify PIE',
+)]
+final class SelfVerifyCommand extends Command
+{
+    /** @param non-empty-string $githubApiBaseUrl */
+    public function __construct(
+        private readonly string $githubApiBaseUrl,
+        private readonly QuieterConsoleIO $io,
+        private readonly ContainerInterface $container,
+    ) {
+        parent::__construct();
+    }
+
+    public function configure(): void
+    {
+        parent::configure();
+
+        CommandHelper::configurePhpConfigOptions($this);
+    }
+
+    public function execute(InputInterface $input, OutputInterface $output): int
+    {
+        if (! PieVersion::isPharBuild()) {
+            $output->writeln('<comment>Aborting! You are not running a PHAR, cannot self-update.</comment>');
+
+            return Command::FAILURE;
+        }
+
+        $targetPlatform = CommandHelper::determineTargetPlatformFromInputs($input, $output);
+        $composer       = PieComposerFactory::createPieComposer(
+            $this->container,
+            PieComposerRequest::noOperation(
+                $output,
+                $targetPlatform,
+            ),
+        );
+        $httpDownloader = new HttpDownloader($this->io, $composer->getConfig());
+        $authHelper     = new AuthHelper($this->io, $composer->getConfig());
+        $latestRelease  = new ReleaseMetadata(PieVersion::get(), 'blah');
+        $pharFilename   = BinaryFile::fromFileWithSha256Checksum((new FullPathToSelf())());
+        $verifyPiePhar  = VerifyPieReleaseUsingAttestation::factory($this->githubApiBaseUrl, $httpDownloader, $authHelper);
+
+        try {
+            $verifyPiePhar->verify($latestRelease, $pharFilename, $output);
+        } catch (FailedToVerifyRelease $failedToVerifyRelease) {
+            $output->writeln(sprintf(
+                '<error>❌ Failed to verify the pie.phar release %s: %s</error>',
+                $latestRelease->tag,
+                $failedToVerifyRelease->getMessage(),
+            ));
+
+            return Command::FAILURE;
+        }
+
+        $output->writeln(sprintf(
+            '<info>✅ You are running an authentic PIE version %s.</info>',
+            $latestRelease->tag,
+        ));
+
+        return Command::SUCCESS;
+    }
+}
diff --git a/src/Container.php b/src/Container.php
index 1e5c82c3..02233a06 100644
--- a/src/Container.php
+++ b/src/Container.php
@@ -18,6 +18,7 @@
 use Php\Pie\Command\RepositoryListCommand;
 use Php\Pie\Command\RepositoryRemoveCommand;
 use Php\Pie\Command\SelfUpdateCommand;
+use Php\Pie\Command\SelfVerifyCommand;
 use Php\Pie\Command\ShowCommand;
 use Php\Pie\Command\UninstallCommand;
 use Php\Pie\ComposerIntegration\MinimalHelperSet;
@@ -84,6 +85,7 @@ static function (ConsoleCommandEvent $event) use (&$displayedBanner): void {
         $container->singleton(RepositoryRemoveCommand::class);
         $container->singleton(UninstallCommand::class);
         $container->singleton(SelfUpdateCommand::class);
+        $container->singleton(SelfVerifyCommand::class);
         $container->singleton(InstallExtensionsForProjectCommand::class);
 
         $container->singleton(QuieterConsoleIO::class, static function (ContainerInterface $container): QuieterConsoleIO {
@@ -109,6 +111,10 @@ static function (ConsoleCommandEvent $event) use (&$displayedBanner): void {
             ->needs('$githubApiBaseUrl')
             ->give('https://api.github.com');
 
+        $container->when(SelfVerifyCommand::class)
+            ->needs('$githubApiBaseUrl')
+            ->give('https://api.github.com');
+
         $container->singleton(
             Build::class,
             static function (ContainerInterface $container): Build {
diff --git a/src/File/FullPathToSelf.php b/src/File/FullPathToSelf.php
new file mode 100644
index 00000000..8f559120
--- /dev/null
+++ b/src/File/FullPathToSelf.php
@@ -0,0 +1,50 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Php\Pie\File;
+
+use RuntimeException;
+
+use function array_key_exists;
+use function getcwd;
+use function is_string;
+use function preg_match;
+use function realpath;
+
+use const DIRECTORY_SEPARATOR;
+
+/** @internal This is not public API for PIE, so should not be depended upon unless you accept the risk of BC breaks */
+class FullPathToSelf
+{
+    /** @return non-empty-string */
+    public function __invoke(): string
+    {
+        /** @psalm-suppress TypeDoesNotContainType */
+        $phpSelf = array_key_exists('PHP_SELF', $_SERVER) && is_string($_SERVER['PHP_SELF']) ? $_SERVER['PHP_SELF'] : '';
+        if ($phpSelf === '') {
+            throw new RuntimeException('Could not find PHP_SELF');
+        }
+
+        return $this->isAbsolutePath($phpSelf)
+            ? $phpSelf
+            : (getcwd() . DIRECTORY_SEPARATOR . $phpSelf);
+    }
+
+    private function isAbsolutePath(string $path): bool
+    {
+        if (realpath($path) === $path) {
+            return true;
+        }
+
+        if ($path === '' || $path === '.') {
+            return false;
+        }
+
+        if (preg_match('#^[a-zA-Z]:\\\\#', $path)) {
+            return true;
+        }
+
+        return $path[0] === '/' || $path[0] === '\\';
+    }
+}
diff --git a/src/Installing/InstallForPhpProject/InstallSelectedPackage.php b/src/Installing/InstallForPhpProject/InstallSelectedPackage.php
index 8d316b35..3245f754 100644
--- a/src/Installing/InstallForPhpProject/InstallSelectedPackage.php
+++ b/src/Installing/InstallForPhpProject/InstallSelectedPackage.php
@@ -5,18 +5,16 @@
 namespace Php\Pie\Installing\InstallForPhpProject;
 
 use Php\Pie\Command\CommandHelper;
+use Php\Pie\File\FullPathToSelf;
 use Php\Pie\Util\Process;
-use RuntimeException;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Output\ConsoleOutputInterface;
 use Symfony\Component\Console\Output\OutputInterface;
 
 use function array_filter;
-use function array_key_exists;
 use function array_walk;
 use function getcwd;
 use function in_array;
-use function is_string;
 
 use const ARRAY_FILTER_USE_BOTH;
 
@@ -25,14 +23,8 @@ class InstallSelectedPackage
 {
     public function withPieCli(string $selectedPackage, InputInterface $input, OutputInterface $output): void
     {
-        /** @psalm-suppress TypeDoesNotContainType */
-        $self = array_key_exists('PHP_SELF', $_SERVER) && is_string($_SERVER['PHP_SELF']) ? $_SERVER['PHP_SELF'] : '';
-        if ($self === '') {
-            throw new RuntimeException('Could not find PHP_SELF');
-        }
-
         $process = [
-            $self,
+            (new FullPathToSelf())(),
             'install',
             $selectedPackage,
         ];
diff --git a/src/Util/PieVersion.php b/src/Util/PieVersion.php
index 56166b9c..ab1585fd 100644
--- a/src/Util/PieVersion.php
+++ b/src/Util/PieVersion.php
@@ -45,6 +45,8 @@ public static function isPharBuild(): bool
      * realistic-looking version; usually either a tag (e.g. `2.0.0`), or a tag
      * and following commit short hash (e.g. `2.0.0@e558e33`). If not this will
      * fall back to some other techniques to try to determine a version.
+     *
+     * @return non-empty-string
      */
     public static function get(): string
     {
@@ -62,7 +64,7 @@ public static function get(): string
          * likely be something like `dev-main` (branch name).
          */
         $installedVersion = InstalledVersions::getVersion(InstalledVersions::getRootPackage()['name']);
-        if ($installedVersion === null) {
+        if ($installedVersion === null || $installedVersion === '') {
             return self::SYMFONY_MAGIC_CONST_UNKNOWN;
         }