A priori, your idea sounds like MakerDAO, as well as I understand them.
Anonymity is not a problem for decentralized system. There is a problem with Sybil attacks just from the underlying network, but any scheme to address that can either be transformed into a zero-knowledge scheme that achieves the same goals, or else should not be considered a reasonable scheme in the first place. Anonymity is a essential security property for any payment system because without anonymity the payment scheme actively harms the participants. We believe that fungibility breaks down without anonymity too. It’s true debt interacts poorly with simple anonymity scheme, but one might address this in several ways: 1st) We’d imagine virtual tax payment tokens can enforce taxation in many scheme by travelling in the opposite direction of payments. I recently “helped” a friend design a virtual obligation fulfilment tokens scheme for cheaper anonymous payment forwarding in payment channels.. where “helped” means I kept breaking their designed until they came up with virtual obligation fulfilment tokens. I’d imagine some virtual debt tokens scheme could support anonymous payments denominated in debt too, so respected parties authorise assuming debt or outright insure the debt, and the tokens they issue flow backwards from the money itself. 2nd) We might settle debts among parties with some zero or low-knowledge protocol. If I wanted to do this, then I might attempt to port our Fog of Trust protocol to universal reencryption and associated debts using ideas from QuisQuis. I've never read "Debt: The First 5000 Years” but I’m dubious that replaying history works so well for constructing money today. In any case, individuals handle debt poorly for everyday purchases that require anonymity, but well enough for large purchases that do not require anonymity, like land. In fact, any debt based distributed payment system built might worsen problems like debt slavery, create starvation, etc. We should therefore focus on non-debt based anonymous pay fine with non-debt based anonymous payment schemes, like Taler, ZCash, etc., attempt to wean individuals off using debt for small purchases, and leave debt for the existing financial world, ideally recreating sane bankruptcy laws in places that lack them like Spain. Jeff
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