I have very old shn coins? What to do with them? Possible to convert?
redemption was in 4 years ago when some guys convinced users and exchange to get 1 pac protocol for 1000 old pac coins.
What you have is most possibly useless except you decide to restore the old chain and run pac coin as separate chain
There are two source codes inbetween
github.com/pacprotocol/pacprotocol and the original one of pac coin github.com/PACCommunity/PAC that most possibly fits for your old coins before the fork in 2019