But if those 3 billion coins are moving on the blockchain, then I don't think, anyone can save anything now. Is there a running block explorer for the coin and is address of 3 billion coins known?
Well like i said, it's completely possible to figure out, because everyone has the blockchain.. you just need a crawler script to go through each block and trace the originating bad 3b premine transactions, to figure out all the current addresses where some of those coins exist.
And once that is computed.. then just hardcode a new forked client to block those addresses and those amounts.
All the data is right there in front of us.. you just need a surgical script to crawl through the blockchain..
Not this simple. What if some of those coins are moved in exchanges, sold and converted to BTC? What if some of those coins are on exchanges wallet? Sorry, you are underestimating the scenario of those 3 billion coins being moved.