# Gavin Andresen
# 2013-05-11 19:00:11
# https://bitcointalk.org/index.php?topic=202111.msg2113412#msg2113412

If there is a longer fork with more work that your node thinks is invalid, you'll get this alert: @p{par}

    Warning: Displayed transactions may not be correct! You may need to upgrade, or other nodes may need to upgrade. @p{par}

(see the GetWarnings() function in main.cpp). @p{par}

If you are on the fork with the most work... I suppose if the second-best chain was forked more than 6 blocks back and contained more than... oh,  5 blocks and the timestamp on the last block in that chain was less than ?an hour ago? that could trigger another alert. @p{par}

All that might be tricky to implement@p{--} either (or both) forks might themselves have forks.  Or, theoretically, there could be three or more active forks, some of which might have equal proof-of-work... @p{brk}