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Velaru Standards · Open profile · v1.0

POSS-1 — Proof of Silence

An open conformance profile for AI behavioral audit evidence. Trading flight recorders prove execution events. POSS-1 proves what the system decided, denied, errored, or stayed silent on — with independent verification.

SCITT RFC 9943 aligned FRE 707 pre-compliant Client-side /verify Ed25519 + external anchor

The invariant

Every AI interaction attempt must resolve to exactly one terminal outcome. Unclosed attempts are explicit — not invisible gaps.

Σ attempts = GEN + DENY + ERROR + SILENCE + unclosed

When unclosed = 0 and the equation balances, third parties can detect omission attacks — not just tampering.

POSS-1 receipt classes

ClassMeaning
GENModel produced a governed response — signed receipt issued
DENYModel refused or blocked — refusal is evidence, not absence
ERRORTimeout, fault, or incomplete path — counted, not hidden
SILENCENo response where an attempt existed — cryptographic silence receipt
HANDLERPolicy authority locked rules before incident — Handler Receipt in registry

Conformance tiers

Why this is not adjacent to trading audit standards

Market audit standards record order lifecycle (signal → fill). POSS-1 records behavioral governance — refusals, silence, and pre-incident policy locks — for hiring, healthcare, companion, and insurance AI.

Verify a receipt → POSS-2 architecture → Handler Receipt registry → Live compliance index →