thanx! very good fact!

Why look for the address with 12.5 btc in transaction?

I want to trace the token/coin back to the coinbase transaction to get an address. Am I able to match that up if the miner has published it? Miners might be able to track back through the block distribution tree. Does a bitcoin know where it is mined?

But I have no idea yet, how to setup a fraudfree system for that. And if is possible at all to dig this deep.

any ideas?