Known Hashes for Butt Barrier
<Table Width="40%">
<TR><TH Align="left">Run Dates</TH><TH Align="left">Hash #</TH></TR>
<TR><TD>2009-07-30</TD><TD>479</TD></TR>
<TR><TD>2009-07-26</TD><TD>478</TD></TR>
<TR><TD>2009-07-25</TD><TD>477</TD></TR>
<TR><TD>2009-06-11</TD><TD>469</TD></TR>
<TR><TD>2008-02-28</TD><TD>399</TD></TR>
</Table>