Add Blacklist::checkAddress() method

include/Blacklist.php

@@ -17,6 +17,14 @@ final class Blacklist
         // phpcs:enable
     ];
 
+    /**
+     * The official list of blacklisted addresses
+     */
+    public const ADDRESSES = [
+        // phpcs:disable Generic.Files.LineLength
+        // phpcs:enable
+    ];
+
     /**
      * Check if a public key is blacklisted
      *
@@ -27,4 +35,15 @@ final class Blacklist
     {
         return key_exists($publicKey, static::PUBLIC_KEYS);
     }
+
+    /**
+     * Check if an address is blacklisted
+     *
+     * @param string $address
+     * @return bool
+     */
+    public static function checkAddress(string $address): bool
+    {
+        return key_exists($address, static::ADDRESSES);
+    }
 }