合约路径：/evidence_toolkit/contracts/Evidence.sol

以下粘贴部分代码，详细代码参看文件。在Evidence.sol合约中创建埋点事件newSignaturesEvent，对证据ID（id）、证据hash（evi）、证据签名信息（v、r、s）、工厂合约地址（addr）进行埋点，然后在Evidence方法中调用newSignaturesEvent。
当发送创建证据（newEvidence）业务交易时，会执行Evidence方法，从而将埋点信息埋入区块中。

event newSignaturesEvent(string evi, string info, string id, uint8 v, bytes32 r, bytes32 s,address addr);
function Evidence(string evi, string info, string id, uint8 v, bytes32 r, bytes32 s, address addr, address sender) public {
   signersAddr = addr;
   if(CallVerify(sender))
   {
       evidence = evi;
       evidenceInfo = info;
       evidenceId = id;
       _v.push(v);
       _r.push(r);
       _s.push(s);
       signers.push(sender);
       newSignaturesEvent(evi,info,id,v,r,s,addr);
   }
   else
   {
       errorNewSignaturesEvent(evi,info,id,v,r,s,addr);
   }
}

CREATE TABLE t_evidence_info (
  id bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键id',
  block_height int NOT NULL COMMENT '交易所在块高',
  event varchar(128) NOT NULL COMMENT 'event',
  evidence_id varchar(128) NOT NULL COMMENT '证据ID',
  evidence_hash varchar(256) NOT NULL COMMENT '证据hash',
  sign_data varchar(256) DEFAULT '' COMMENT '签名数据',
  factory_address varchar(256) DEFAULT '' COMMENT '工厂合约地址',
  PRIMARY KEY (id)
) COMMENT='证据信息表' ENGINE=InnoDB DEFAULT CHARSET=utf8;

合约编译的Java文件：/depot/src/main/java/org/bcos/depot/contract/Evidence.java
业务数据表：/depot/script/db/t_evidence_info.sql
数据表对应Java实体类：/depot/src/main/java/org/bcos/depot/entity/EvidenceInfo.java
                    /depot/src/main/java/org/bcos/depot/entity/EvidenceInfoExample.java
数据表对应接口Dao：/depot/src/main/java/org/bcos/depot/mapper/EvidenceInfoDao.java
数据表对应Mapper文件：/depot/src/main/resources/mappers/EvidenceInfoDao.xml

接口实现类：/depot/src/main/java/org/bcos/depot/facade/impl/DepotFacadeImpl.java
实现类说明：①接口实现类参数为交易回执信息（receipt）、初始化web3j、当前交易所在块高（blockNumber）
          ②接口实现类返回类型为boolean，当解析存储成功返回true，失败则返回false
          ③实现类中首先通过合约对应Java类的load()方法实例化一个对象，由该对象通过埋点的事件名从交易回执信息（receipt）中获取埋点信息，然后解析存入数据库

@Override
public boolean handleReceipt(TransactionReceipt receipt, Web3j web3j, BigInteger blockNumber) {
	try {
		ECKeyPair ecKeyPair = Keys.createEcKeyPair();
		evidence = Evidence.load("", web3j, Credentials.create(ecKeyPair), BCConstant.gasPrice, BCConstant.gasLimit);

		List<NewSignaturesEventEventResponse> newSignaturesList = evidence.getNewSignaturesEventEvents(receipt);
		logger.info("depot newSignaturesList.size:{}", newSignaturesList.size());
		for (NewSignaturesEventEventResponse newSignatures : newSignaturesList) {
			EvidenceInfo evidenceInfo = new EvidenceInfo();
			evidenceInfo.setBlockHeight(blockNumber.intValue());
			evidenceInfo.setEvent("newSignaturesEvent");
			evidenceInfo.setEvidenceId(newSignatures.id.getValue());
			evidenceInfo.setEvidenceHash(newSignatures.evi.getValue());
			SignatureData signatureData = new SignatureData((byte) newSignatures.v.getValue().intValue(), newSignatures.r.getValue(), newSignatures.s.getValue());
			String signData = Tools.signatureDataToString(signatureData);
			evidenceInfo.setSignData(signData);
			evidenceInfo.setFactoryAddress(newSignatures.addr.toString());
			evidenceInfoDao.insert(evidenceInfo);
			logger.info("depot newSignaturesEvent:{}", evidenceInfo.toString());
		}
		return true;
	} catch (Exception e) {
		logger.error("handleReceipt OnError, {}", e.getMessage());
		return false;
	}
}

编译生成的depot目录：
    depot/apps：depot工程编译后生成的jar包
    depot/conf：depot工程jar包依赖的配置文件
    depot/db：depot工程表信息
    depot/lib：depot工程依赖的jar包
    control.sh：执行脚本
    
区块链节点信息：depot/conf/applicationContext.xml
数据库信息：depot/conf/db.properties

启动depot服务：./control.sh start
停止depot服务：./control.sh stop
重启depot服务：./control.sh restart

进入/evidence_toolkit/bin目录，执行以下命令部署存证工厂合约：
./evidence deploy user.jks '123456' '123456'

上个命令会返回一个工厂合约地址，替换以下命令中的deployAddress，发起交易，新建证据：
./evidence new user.jks '123456' '123456' 'deployAddress' '1712071OA03998263894637100018685' '5e79e0e7a16b7804a59ad3de9b0ec0f817d225c24bb6f34a7278756fb45df724'