pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.proofexistence.app</groupId>
  <artifactId>proof-existence-app</artifactId>
  <packaging>jar</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>proof-existence-app</name>
  <url>http://maven.apache.org</url>
  <properties>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
  </properties>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.13.1</version>
			<scope>test</scope>
    </dependency>
    <dependency>
			<groupId>org.web3j</groupId>
			<artifactId>core</artifactId>
			<version>4.5.4</version>
		</dependency>
		<dependency>
			<groupId>org.web3j</groupId>
			<artifactId>besu</artifactId>
			<version>4.5.4</version>
		</dependency>
    <dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-simple</artifactId>
			<version>1.7.21</version>
		</dependency>
    <dependency>
      <groupId>commons-codec</groupId>
      <artifactId>commons-codec</artifactId>
      <version>1.13</version>
    </dependency>
  </dependencies>
</project>