diff --git a/build.gradle b/build.gradle
index 0725a1c7..4c6d2acf 100644
--- a/build.gradle
+++ b/build.gradle
@@ -75,9 +75,35 @@ publishing {
                 password findProperty("mavenPassword")
             }
             if(project.version.endsWith('-SNAPSHOT')) {
-                url "https://s01.oss.sonatype.org/content/repositories/snapshots/"
+                url "https://central.sonatype.com/repository/maven-snapshots/"
             } else {
-                url "https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/"
+                url "https://ossrh-staging-api.central.sonatype.com/service/local/staging/deploy/maven2/"
+            }
+        }
+    }
+}
+
+tasks.named('publish') {
+    finalizedBy tasks.named('postRelease')
+}
+
+tasks.register('postRelease') {
+    doLast {
+        if (!project.version.endsWith('-SNAPSHOT')) {
+            def username = findProperty("mavenUsername")
+            def password = findProperty("mavenPassword")
+            def url = "https://ossrh-staging-api.central.sonatype.com/manual/upload/defaultRepository/com.apple.itunes.storekit"
+            def connection = new URL(url).openConnection() as HttpURLConnection
+            connection.setRequestMethod("POST")
+            connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded")
+            connection.setRequestProperty('Authorization', 'Basic ' + "${username}:${password}".bytes.encodeBase64().toString())
+            def responseCode = connection.responseCode
+            if (responseCode == 200) {
+                def response = connection.inputStream.text
+                println "Success: $response"
+            } else {
+                def error = connection.errorStream?.text ?: "No error details"
+                println "Error $responseCode: $error"
             }
         }
     }
diff --git a/src/main/java/com/apple/itunes/storekit/verification/SignedDataVerifier.java b/src/main/java/com/apple/itunes/storekit/verification/SignedDataVerifier.java
index 7caefed5..2914f038 100644
--- a/src/main/java/com/apple/itunes/storekit/verification/SignedDataVerifier.java
+++ b/src/main/java/com/apple/itunes/storekit/verification/SignedDataVerifier.java
@@ -70,12 +70,8 @@ public SignedDataVerifier(Set<InputStream> rootCertificates, String bundleId, Lo
      */
     public JWSTransactionDecodedPayload verifyAndDecodeTransaction(String signedTransaction) throws VerificationException {
         JWSTransactionDecodedPayload transaction = decodeSignedObject(signedTransaction, JWSTransactionDecodedPayload.class);
-        if (!bundleId.equals(transaction.getBundleId())) {
-            throw new VerificationException(VerificationStatus.INVALID_APP_IDENTIFIER);
-        }
-        if (!this.environment.equals(transaction.getEnvironment())) {
-            throw new VerificationException(VerificationStatus.INVALID_ENVIRONMENT);
-        }
+        validateBundleId(transaction.getBundleId());
+        validateEnvironment(transaction.getEnvironment());
         return transaction;
     }
 
@@ -89,9 +85,7 @@ public JWSTransactionDecodedPayload verifyAndDecodeTransaction(String signedTran
      */
     public JWSRenewalInfoDecodedPayload verifyAndDecodeRenewalInfo(String signedRenewalInfo) throws VerificationException {
         JWSRenewalInfoDecodedPayload renewalInfo = decodeSignedObject(signedRenewalInfo, JWSRenewalInfoDecodedPayload.class);
-        if (!this.environment.equals(renewalInfo.getEnvironment())) {
-            throw new VerificationException(VerificationStatus.INVALID_ENVIRONMENT);
-        }
+        validateEnvironment(renewalInfo.getEnvironment());
         return renewalInfo;
     }
 
@@ -135,12 +129,9 @@ public ResponseBodyV2DecodedPayload verifyAndDecodeNotification(String signedPay
     }
 
     protected void verifyNotification(String bundleId, Long appAppleId, Environment notificationEnv) throws VerificationException {
-        if (!this.bundleId.equals(bundleId) || (this.environment.equals(Environment.PRODUCTION) && !this.appAppleId.equals(appAppleId))) {
-            throw new VerificationException(VerificationStatus.INVALID_APP_IDENTIFIER);
-        }
-        if (!this.environment.equals(notificationEnv)) {
-            throw new VerificationException(VerificationStatus.INVALID_ENVIRONMENT);
-        }
+        validateBundleId(bundleId);
+        validateAppAppleId(appAppleId);
+        validateEnvironment(notificationEnv);
     }
 
     /**
@@ -154,13 +145,28 @@ protected void verifyNotification(String bundleId, Long appAppleId, Environment
     public AppTransaction verifyAndDecodeAppTransaction(String signedAppTransaction) throws VerificationException {
         AppTransaction appTransaction = decodeSignedObject(signedAppTransaction, AppTransaction.class);
         Environment environment = appTransaction.getReceiptType();
-        if (!this.bundleId.equals(appTransaction.getBundleId()) || (this.environment.equals(Environment.PRODUCTION) && !this.appAppleId.equals(appTransaction.getAppAppleId()))) {
+        validateBundleId(appTransaction.getBundleId());
+        validateAppAppleId(appTransaction.getAppAppleId());
+        validateEnvironment(environment);
+        return appTransaction;
+    }
+
+    protected void validateAppAppleId(Long appAppleId) throws VerificationException {
+        if (this.environment.equals(Environment.PRODUCTION) && !this.appAppleId.equals(appAppleId)) {
+            throw new VerificationException(VerificationStatus.INVALID_APP_IDENTIFIER);
+        }
+    }
+
+    protected void validateBundleId(String bundleId) throws VerificationException {
+        if (!this.bundleId.equals(bundleId)) {
             throw new VerificationException(VerificationStatus.INVALID_APP_IDENTIFIER);
         }
+    }
+
+    protected void validateEnvironment(Environment environment) throws VerificationException {
         if (!this.environment.equals(environment)) {
             throw new VerificationException(VerificationStatus.INVALID_ENVIRONMENT);
         }
-        return appTransaction;
     }
 
     protected <T extends DecodedSignedData> T decodeSignedObject(String signedObject, Class<T> clazz) throws VerificationException {