Some resources. - https://github.com/FilOzone/filecoin-services-payments/blob/2863302ccba29c58ee4e50e1695934192089d3bf/README.md - https://github.com/FilOzone/filecoin-services-payments/blob/2863302ccba29c58ee4e50e1695934192089d3bf/SPEC.md