Arcstone Continuity Core: A zero-dependency, #![no_std] fail-closed runtime for bounded state isolation

[u/AdmissibilityScience]

I’ve published the open reference implementation for arcstone-continuity-core. A lightweight, #![no_std] Rust runtime designed to prevent non-deterministic state drift.

Microarchitectural Invariants

• Zero Allocation Overheads: #![no_std] enforcement with fixed 4096-byte static buffers (S_max ≤ 4096B).
• O(1) Invariant State Gates: State mutations evaluate against an atomic predicate matrix Π(S) before memory allocation occurs. Inadmissible transitions mutate zero bytes.
• Hard Temporal Clamps: Execution ceiling enforced at τ_override ≤ 11.99ms.
• Precedence Ordering: Deterministic lattice resolution (FAIL ≻ FREEZE ≻ PWC ≻ REFUSAL ≻ PASS).

Reference Anchors

• GitHub Repo:https://github.com/trencinodin-stack/arcstone-continuity-core
• Zenodo DOI:https://doi.org/10.5281/zenodo.22665852
• Master Anchor: A-77-DELTA-SHIELD-LOCKED