diff --git a/pom.xml b/pom.xml
index 7951b033..fc6dfe24 100644
--- a/pom.xml
+++ b/pom.xml
@@ -41,7 +41,6 @@
         <bcprov-jdk18on.version>1.76</bcprov-jdk18on.version>
         <bcpkix-jdk18on.version>1.76</bcpkix-jdk18on.version>
         <vertx-core.version>4.4.0</vertx-core.version>
-        <discovery.version>22.2.0</discovery.version>
         <jsonrpc4j.version>1.6</jsonrpc4j.version>
         <jaxws-ri.version>4.0.1</jaxws-ri.version>
         <config.version>1.4.2</config.version>
@@ -804,90 +803,6 @@
             <version>${json.version}</version>
         </dependency>
 
-        <dependency>
-            <groupId>tech.pegasys.discovery</groupId>
-            <artifactId>discovery</artifactId>
-            <version>${discovery.version}</version>
-            <exclusions>
-                <exclusion>
-                    <artifactId>log4j-api</artifactId>
-                    <groupId>org.apache.logging.log4j</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>log4j-core</artifactId>
-                    <groupId>org.apache.logging.log4j</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>netty-all</artifactId>
-                    <groupId>io.netty</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>guava</artifactId>
-                    <groupId>com.google.guava</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>bcprov-jdk15on</artifactId>
-                    <groupId>org.bouncycastle</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>jackson-databind</artifactId>
-                    <groupId>com.fasterxml.jackson.core</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>logging-interceptor</artifactId>
-                    <groupId>com.squareup.okhttp3</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>okhttp</artifactId>
-                    <groupId>com.squareup.okhttp3</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>jackson-core</artifactId>
-                    <groupId>com.fasterxml.jackson.core</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>jffi</artifactId>
-                    <groupId>com.github.jnr</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>jnr-constants</artifactId>
-                    <groupId>com.github.jnr</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>jnr-ffi</artifactId>
-                    <groupId>com.github.jnr</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>vertx-core</artifactId>
-                    <groupId>io.vertx</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>bytes</artifactId>
-                    <groupId>org.apache.tuweni</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>units</artifactId>
-                    <groupId>org.apache.tuweni</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>slf4j-api</artifactId>
-                    <groupId>org.slf4j</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>tuweni-bytes</artifactId>
-                    <groupId>org.apache.tuweni</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>tuweni-io</artifactId>
-                    <groupId>org.apache.tuweni</groupId>
-                </exclusion>
-                <exclusion>
-                    <artifactId>tuweni-units</artifactId>
-                    <groupId>org.apache.tuweni</groupId>
-                </exclusion>
-            </exclusions>
-        </dependency>
-
         <!-- https://mvnrepository.com/artifact/com.github.briandilley.jsonrpc4j/jsonrpc4j -->
         <dependency>
             <groupId>com.github.briandilley.jsonrpc4j</groupId>
diff --git a/src/main/java/io/xdag/Wallet.java b/src/main/java/io/xdag/Wallet.java
index 1c1fed2e..d9603e04 100644
--- a/src/main/java/io/xdag/Wallet.java
+++ b/src/main/java/io/xdag/Wallet.java
@@ -39,7 +39,7 @@
 import io.xdag.crypto.Aes;
 import io.xdag.crypto.Bip32ECKeyPair;
 import io.xdag.crypto.Keys;
-import io.xdag.crypto.MnemonicUtils;
+import io.xdag.utils.MnemonicUtils;
 import io.xdag.crypto.Sign;
 import io.xdag.utils.Numeric;
 import io.xdag.utils.SimpleDecoder;
diff --git a/src/main/java/io/xdag/cli/XdagCli.java b/src/main/java/io/xdag/cli/XdagCli.java
index 6e9f643f..ae559ba0 100644
--- a/src/main/java/io/xdag/cli/XdagCli.java
+++ b/src/main/java/io/xdag/cli/XdagCli.java
@@ -32,7 +32,7 @@
 import io.xdag.config.Config;
 import io.xdag.config.Constants;
 import io.xdag.crypto.Keys;
-import io.xdag.crypto.MnemonicUtils;
+import io.xdag.utils.MnemonicUtils;
 import io.xdag.crypto.Sign;
 import io.xdag.db.SnapshotStore;
 import io.xdag.db.rocksdb.DatabaseName;
diff --git a/src/main/java/io/xdag/core/Block.java b/src/main/java/io/xdag/core/Block.java
index 3aacbb72..88bc4ba1 100644
--- a/src/main/java/io/xdag/core/Block.java
+++ b/src/main/java/io/xdag/core/Block.java
@@ -222,7 +222,6 @@ public Block(BlockInfo blockInfo) {
         this.info = blockInfo;
         this.isSaved = true;
         this.parsed = true;
-
     }
 
     /**
diff --git a/src/main/java/io/xdag/crypto/Base58.java b/src/main/java/io/xdag/crypto/Base58.java
index a2a4334d..b115b4f8 100644
--- a/src/main/java/io/xdag/crypto/Base58.java
+++ b/src/main/java/io/xdag/crypto/Base58.java
@@ -146,15 +146,6 @@ public static boolean checkAddress(String input) {
         return Arrays.equals(checksum, actualChecksum);
     }
 
-    public static boolean checkBytes24(byte[] data) {
-        if (data.length != 24) return false;
-        byte[] data20 = Arrays.copyOfRange(data, 0, data.length - 4);
-        byte[] checksum = Arrays.copyOfRange(data, data.length - 4, data.length);
-        byte[] actualChecksum = Arrays.copyOfRange(Hash.hashTwice(data20), 0, 4);
-        return Arrays.equals(checksum, actualChecksum);
-    }
-
-
     private static byte divmod(byte[] number, int firstDigit, int base, int divisor) {
         // this is just long division which accounts for the base of the input digits
         int remainder = 0;
diff --git a/src/main/java/io/xdag/utils/WalletUtils.java b/src/main/java/io/xdag/utils/WalletUtils.java
index cf8ba6cf..ce865b75 100644
--- a/src/main/java/io/xdag/utils/WalletUtils.java
+++ b/src/main/java/io/xdag/utils/WalletUtils.java
@@ -27,7 +27,6 @@
 import io.xdag.Wallet;
 import io.xdag.crypto.Base58;
 import io.xdag.crypto.Bip32ECKeyPair;
-import io.xdag.crypto.MnemonicUtils;
 import io.xdag.utils.exception.AddressFormatException;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.tuweni.bytes.Bytes32;
diff --git a/src/test/java/io/xdag/wallet/WalletUtilsTest.java b/src/test/java/io/xdag/wallet/WalletUtilsTest.java
index e68ed5a5..4c656fb2 100644
--- a/src/test/java/io/xdag/wallet/WalletUtilsTest.java
+++ b/src/test/java/io/xdag/wallet/WalletUtilsTest.java
@@ -29,6 +29,7 @@
 import io.xdag.config.DevnetConfig;
 import io.xdag.crypto.*;
 import io.xdag.utils.BytesUtils;
+import io.xdag.utils.MnemonicUtils;
 import io.xdag.utils.WalletUtils;
 import org.apache.tuweni.bytes.Bytes32;
 import org.apache.tuweni.io.Base58;