I have intelligence that they are currently allowing countries to negotiate through diplomatic means whereby they guarantee removal of sanctions against Iran and unfreeze Iranian assets. For BRICS countries, like China or India, it's in a BRICS currency of their choice and/or the common backing store of value for BRICS: gold. While none of the BRICS currencies are linked or backed by gold, they are redeemable to gold's floating value. The petrodollar is being replaced with petrogold.
Every one in central banking knows cryptocurrency is a scam to get the hoi polloi to accept CBDCs.