@Test
public void shouldLowerSixBytesWithTruncation() {

    // given
    long startTime = 123456123456789123L;
    // when
    String lowerSixBytes = Transaction.lowerSixBytesHex(startTime);
    // then
    assertThat(lowerSixBytes).isEqualTo("9ab0affd1a83");
}