You might want to look into Open-Transactions [1], which is a Chaumian blinded token system supporting basket currencies out of the box. You'd presumably have a

You might want to look into Open-Transactions [1], which is a Chaumian blinded token system supporting basket currencies out of the box. You'd presumably have a list of reliable issuers that mint their own tokens backed by real-world assets, then do a basket currency over all of them together. [1] https://github.com/FellowTraveler/Open-Transactions https://github.com/FellowTraveler/Open-Transactions