Ecash mints funded with Spillman channels: The ultimate nodeless Lightning wallet

https://gist.github.com/lukechilds/307341239beac72c9d8cfe3198f9bfff

Critics of eCash protocols have long argued that trusting the minter is a significant vulnerability.

This protocol addresses that concern by utilizing a modified Spillman channel, which significantly reduces the custody risk associated with eCash transfers. By providing users with a unilateral exit transaction, they can recover their funds even if the eCash mint becomes insolvent.

Conversely, the eCash mint can also retrieve the funds spent by customers through their own unilateral exit transaction. This payment channel concept bears resemblance to Lightning, but with the eCash mint acting as the counterparty.

Considering its privacy benefits, this solution appears to tick all the boxes for private, self-custodial, scalable, and instantaneous payments on Bitcoin.