> Is there an ACME-like thing to verify online identity control like Keybase still does?

From https://news.ycombinator.com/item?id=28926739 :

> NIST SP 800-63 https://pages.nist.gov/800-63-3/ :

> SP 800-63-3: Digital Identity Guidelines https://doi.org/10.6028/NIST.SP.800-63-3

> SP 800-63A: Enrollment and Identity Proofing https://doi.org/10.6028/NIST.SP.800-63a

FWIU, NIST SP 800-63A Enrollment and Identity Proofing specifies a spec sort of like ACME but for offline identity.