Purple Kingdom Currency System: Bitcoin will be used as the benchmarking settlement unit. Purple Kingdom will not issue any centralized circulation currency-fiat currency, but will delegate the minting power to institutions and individuals, and it will be completely on the chain, open and transparent. backtracking. Everyone can operate a currency that matches their credit, and institutions launch free market competition to issue currencies with different anchors, and the public can freely choose to use currencies with high credit values.