@java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    if (getRawHashesCount() > 0) {
      hash = (37 * hash) + RAW_HASHES_FIELD_NUMBER;
      hash = (53 * hash) + getRawHashesList().hashCode();
    }
    if (hasRiceHashes()) {
      hash = (37 * hash) + RICE_HASHES_FIELD_NUMBER;
      hash = (53 * hash) + getRiceHashes().hashCode();
    }
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
    return hash;
  }
<pre>
The encoded 4-byte prefixes of SHA256-formatted entries, using a
Golomb-Rice encoding. The hashes are converted to uint32, sorted in
ascending order, then delta encoded and stored as encoded_data.
</pre>

<code>.google.cloud.webrisk.v1.RiceDeltaEncoding rice_hashes = 2;</code>
java-webrisk/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/ThreatEntryAdditions.java