public long getChecksum() {
                return checksum_;
            }
<pre>
Checksum fot this log entry, since 1.2.6, added by boyan&#64;antfin.com
</pre>

<code>optional int64 checksum = 6;</code>
jraft-core/src/main/java/com/alipay/sofa/jraft/entity/RaftOutter.java