build1 distinct publisher
SMS OTP as a ledger entry: one challenge, one send, and a server that owns expiry
A dev.to invariant list treats each code as a single-use challenge with server-side authority. The published storage interface counts resends but never counts wrong guesses.
Publishers:dev.to
Reality
- Evidence26
- Adoption
- Insufficient
- Hype gap+14
- Incentives28
- Confidence36