There were a dozen popular blockchain cryptocurrencies now—ChiCoin, ThaiCoin, Biocoin, SinCoin—most linked to a central banking authority. Cryptocurrency providers had concluded in the early 2020s that it was better to sell blockchain software solutions to central banks than to enter the heavily regulated banking industry on their own. More libertarian-minded flavors, like Biocoin, still existed (named because it used cell division and mutation inside a bioreactor as a calculation engine to unlock coins, while simultaneously generating intrinsically valuable biomass).
