So how many BRX in existence and where is the proof of the destruction of the rest?
Go to help->debug->console and type "getinfo" to see total money supply of BRK and BRX.
BRX supply was 12.5M in genesis block. It is now:"staking currency" : "BRX",
"staking moneysupply" :
6268082.49402536,
"staking totalmint" : 6268082.49402536,
BRK supply was 19.5M in genesis block. It is now:"moneysupply" : 17248338.20328000,
"moneysupply currency" : "BRK",
"totalmint" :
17248338.20328000,