I was curious what sort of auditability would be possible in Chaumian/ecash mints given I was at a bitdevs last night discussing Fediment and I didn't have a strong enough understanding in my refutation of people failing to understand the difference between these things and gold certificates.

This may have already been shared on here as it's a couple months old now, but I found this proposal from CalleBTC on how proof-of-liabilities can be implemented interesting and compelling.