You might find the new “Privacy Pass” draft specification interesting then: https://datatracker.ietf.org/doc/draft-ietf-privacypass-architecture/03/ https://dat

You might find the new “Privacy Pass” draft specification interesting then: https://datatracker.ietf.org/doc/draft-ietf-privacypass-architecture/03/ https://datatracker.ietf.org/doc/draft-ietf-privacypass-arch... and "Rate Limited Tokens" extension https://datatracker.ietf.org/doc/draft-privacypass-rate-limit-tokens/02/ https://datatracker.ietf.org/doc/draft-privacypass-rate-limi... (authors are from Google, Fastly, Apple, Cloudflare) I thought I saw this on HN before, but apparently not - submitted for discussion now at https://news.ycombinator.com/item?id=31852145 https://news.ycombinator.com/item?id=31852145