Sovereign Network Physics for Public Sector Finance.

We do not audit irregular expenditure. We annihilate it at the network edge.

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The State of Public ERPs

The Legacy State

Retroactive Failure

Relies on application-layer software (ERPs) vulnerable to internal manipulation.
Compliance is manually verified or discovered 12 months later during Auditor-General (AGSA) post-mortems.
Evidentiary logs are held locally, easily wiped, and legally disputable.

Castle OS

Kinetic Certainty

Enforcement operates at Layer-7, physically air-gapped from internal ERP application logic.
Sub-millisecond payload evaluation. Illegal transactions trigger an instant HTTP 403 network drop.
Cryptographic proof of every decision is hashed and anchored via an independent European eIDAS node.

The ReasonGate Engine

Built on Envoy Proxy and compiled Golang, the ReasonGate engine operates entirely within your sovereign firewall. It intercepts outgoing encrypted payloads, evaluates the transaction against the live CSD/PFMA matrix in a secure memory sandbox, and resolves the routing physics in under 5 milliseconds.

Integration Envoy proxy-wasm ABI

p50 Latency Overhead < 2.0 ms

Telemetry Pipeline Asynchronous / Non-Blocking

Data Export SHA-256 Hash Only

Pre-emptive Auditor-General Immunity

Castle OS does not just block irregular payments; it proves it. Every decision generated by ReasonGate is instantly canonicalized, hashed, and anchored to an immutable Cryptographic Audit Ledger.

We provide your CFO with an immutable, eIDAS-qualified cryptographic receipt for every mSCOA string that crosses your network. You no longer prepare for audits; you hand the auditors the mathematics.