diff --git a/java-blockchain/.gitignore b/java-blockchain/.gitignore
new file mode 100644
index 0000000000..3de4cc647e
--- /dev/null
+++ b/java-blockchain/.gitignore
@@ -0,0 +1,26 @@
+*.class
+
+0.*
+
+#folders#
+/target
+/neoDb*
+/data
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+.resourceCache
+
+# Packaged files #
+*.jar
+*.war
+*.ear
+
+# Files generated by integration tests
+*.txt
+backup-pom.xml
+/bin/
+/temp
+
+#IntelliJ specific
+.idea/
+*.iml
\ No newline at end of file
diff --git a/java-blockchain/README.md b/java-blockchain/README.md
new file mode 100644
index 0000000000..600f4dd610
--- /dev/null
+++ b/java-blockchain/README.md
@@ -0,0 +1,6 @@
+=========
+
+## Basic Implementation of Blockchian in Java
+
+### Relevant Articles: 
+- []()
diff --git a/java-blockchain/pom.xml b/java-blockchain/pom.xml
new file mode 100644
index 0000000000..2f9e011aa7
--- /dev/null
+++ b/java-blockchain/pom.xml
@@ -0,0 +1,40 @@
+<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/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung.blockchain</groupId>
+    <artifactId>java-blockchain</artifactId>
+    <version>0.1.0-SNAPSHOT</version>
+    <name>java-blockchain</name>
+    <packaging>jar</packaging>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-java</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-java</relativePath>
+    </parent>
+    <build>
+        <finalName>java-blockchain</finalName>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+                <configuration>
+                    <source>${maven.compiler.source}</source>
+                    <target>${maven.compiler.target}</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+    <properties>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+    </properties>
+</project>
\ No newline at end of file
diff --git a/java-blockchain/src/main/java/com/baeldung/blockchain/Block.java b/java-blockchain/src/main/java/com/baeldung/blockchain/Block.java
new file mode 100644
index 0000000000..264e3c4b69
--- /dev/null
+++ b/java-blockchain/src/main/java/com/baeldung/blockchain/Block.java
@@ -0,0 +1,65 @@
+package com.baeldung.blockchain;
+
+import java.io.UnsupportedEncodingException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.Date;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class Block {
+
+    private static Logger logger = Logger.getLogger(Block.class.getName());
+
+    private String hash;
+    private String previousHash;
+    private String data;
+    private long timeStamp;
+    private int nonce;
+
+    public Block(String data, String previousHash) {
+        this.data = data;
+        this.previousHash = previousHash;
+        this.timeStamp = new Date().getTime();
+        this.hash = calculateBlockHash();
+    }
+
+    public String mineBlock(int prefix) {
+        String prefixString = new String(new char[prefix]).replace('\0', '0');
+        while (!hash.substring(0, prefix)
+            .equals(prefixString)) {
+            nonce++;
+            hash = calculateBlockHash();
+        }
+        return hash;
+    }
+
+    public String calculateBlockHash() {
+        String dataToHash = previousHash + Long.toString(timeStamp) + Integer.toString(nonce) + data;
+        MessageDigest digest = null;
+        byte[] bytes = null;
+        try {
+            digest = MessageDigest.getInstance("SHA-256");
+            bytes = digest.digest(dataToHash.getBytes("UTF-8"));
+        } catch (NoSuchAlgorithmException | UnsupportedEncodingException ex) {
+            logger.log(Level.SEVERE, ex.getMessage());
+        }
+        StringBuffer buffer = new StringBuffer();
+        for (byte b : bytes) {
+            buffer.append(String.format("%02x", b));
+        }
+        return buffer.toString();
+    }
+
+    public String getHash() {
+        return this.hash;
+    }
+
+    public String getPreviousHash() {
+        return this.previousHash;
+    }
+
+    public void setData(String data) {
+        this.data = data;
+    }
+}
diff --git a/java-blockchain/src/main/resources/logback.xml b/java-blockchain/src/main/resources/logback.xml
new file mode 100644
index 0000000000..7d900d8ea8
--- /dev/null
+++ b/java-blockchain/src/main/resources/logback.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>
\ No newline at end of file
diff --git a/java-blockchain/src/test/java/com/baeldung/blockchain/BlockchainUnitTest.java b/java-blockchain/src/test/java/com/baeldung/blockchain/BlockchainUnitTest.java
new file mode 100644
index 0000000000..acbf651e78
--- /dev/null
+++ b/java-blockchain/src/test/java/com/baeldung/blockchain/BlockchainUnitTest.java
@@ -0,0 +1,67 @@
+package com.baeldung.blockchain;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+public class BlockchainUnitTest {
+
+    public static List<Block> blockchain = new ArrayList<Block>();
+    public static int prefix = 4;
+    public static String prefixString = new String(new char[prefix]).replace('\0', '0');
+
+    @BeforeClass
+    public static void setUp() {
+        Block genesisBlock = new Block("The is the Genesis Block.", "0");
+        genesisBlock.mineBlock(prefix);
+        blockchain.add(genesisBlock);
+        Block firstBlock = new Block("The is the First Block.", genesisBlock.getHash());
+        firstBlock.mineBlock(prefix);
+        blockchain.add(firstBlock);
+    }
+
+    @Test
+    public void givenBlockchain_whenNewBlockAdded_thenSuccess() {
+        Block newBlock = new Block("The is a New Block.", blockchain.get(blockchain.size() - 1)
+            .getHash());
+        newBlock.mineBlock(prefix);
+        assertTrue(newBlock.getHash()
+            .substring(0, prefix)
+            .equals(prefixString));
+        blockchain.add(newBlock);
+    }
+
+    @Test
+    public void givenBlockchain_whenValidated_thenSuccess() {
+        boolean flag = true;
+        for (int i = 0; i < blockchain.size(); i++) {
+            String previousHash = i == 0 ? "0"
+                : blockchain.get(i - 1)
+                    .getHash();
+            flag = blockchain.get(i)
+                .getHash()
+                .equals(blockchain.get(i)
+                    .calculateBlockHash())
+                && previousHash.equals(blockchain.get(i)
+                    .getPreviousHash())
+                && blockchain.get(i)
+                    .getHash()
+                    .substring(0, prefix)
+                    .equals(prefixString);
+            if (!flag)
+                break;
+        }
+        assertTrue(flag);
+    }
+
+    @AfterClass
+    public static void tearDown() {
+        blockchain.clear();
+    }
+
+}
diff --git a/java-blockchain/src/test/resources/.gitignore b/java-blockchain/src/test/resources/.gitignore
new file mode 100644
index 0000000000..83c05e60c8
--- /dev/null
+++ b/java-blockchain/src/test/resources/.gitignore
@@ -0,0 +1,13 @@
+*.class
+
+#folders#
+/target
+/neoDb*
+/data
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+
+# Packaged files #
+*.jar
+*.war
+*.ear
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index a4f2a13c28..1dbc3647b5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -566,6 +566,7 @@
 				<module>oauth2-framework-impl</module>
 				
 				<module>spring-boot-nashorn</module>
+				<module>java-blockchain</module>
 			</modules>
 
 		</profile>
@@ -802,6 +803,7 @@
 				<module>spring-security-kerberos</module>
 				
 				<module>spring-boot-nashorn</module>
+				<module>java-blockchain</module>
 
 			</modules>