Show HN: Arcstone-Airlock-Blueprint — Offline Charon/Aeneas/Coq Verification for Rust

A new Show HN template, Arcstone-Airlock-Blueprint, lets bare-metal #![no_std] Rust crates be formally verified without touching upstream source. Charon LLBC extraction, Aeneas synthesis and Coq 8.18.0 proofs run downstream in an offline, capability-dropped container against a read-only snapshot, emitting a REFINEMENT-AUDIT.json checked by coqchk with zero admitted axioms. A prebuilt digest-pinned OCI image supports a 30-minute quickstart.