How does taxcoin result in sovereign money

When legal tender government backed created by meeting requirements set out by government and central bank

Fiat money is not sovereign it is created by banks it is not linked to government, where taxcoin is linked to the tax system, fiat money is linked only to the risk appetite and economic expectations as decided by the issuing bank subject to their meeting the requirements of fractional reserves a very loose connection if any.

Hybrid money alternative to commodity money and representative money

Seigniorage :