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 ## Introduction
-[![Build Status](https://travis-ci.org/openmessaging/openmessaging-storage-dledger.svg?branch=master)](https://travis-ci.org/openmessaging/openmessaging-storage-dledger) [![Coverage Status](https://coveralls.io/repos/github/openmessaging/openmessaging-storage-dledger/badge.svg?branch=master)](https://coveralls.io/github/openmessaging/openmessaging-storage-dledger?branch=master) [![License](https://img.shields.io/badge/license-Apache%202-4EB1BA.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)
+[![Build Status](https://travis-ci.org/openmessaging/openmessaging-storage-dledger.svg?branch=master)](https://travis-ci.org/openmessaging/openmessaging-storage-dledger) [![Maven Central](https://maven-badges.herokuapp.com/maven-central/io.openmessaging.storage/dledger/badge.svg)](http://search.maven.org/#search%7Cga%7C1%7Copenmessaging-storage-dledger)  [![Coverage Status](https://coveralls.io/repos/github/openmessaging/openmessaging-storage-dledger/badge.svg?branch=master)](https://coveralls.io/github/openmessaging/openmessaging-storage-dledger?branch=master) [![License](https://img.shields.io/badge/license-Apache%202-4EB1BA.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)
 
 A raft-based java library for building high-available, high-durable, strong-consistent commitlog, which could act as the persistent layer for distributed storage system, i.e. messaging, streaming, kv, db, etc.