> ## Documentation Index
> Fetch the complete documentation index at: https://docs.manthan.systems/llms.txt
> Use this file to discover all available pages before exploring further.

# Authority Verification Runtime

> The deterministic runtime that enforces Authorization Decisions before execution

# Authority Verification Runtime

The Authority Verification Runtime is the enforcement layer that ensures only valid Authorization Decisions are executed.

It is the final gate before real-world execution.

***

## System Flow

```text theme={null}
Authorization Decision → Authority Verification Runtime → Execution Runtime → Attestation
1. Input: Authorization Decision

The runtime receives an Authorization Decision from Governance.

This decision is:

deterministic
policy-bound
cryptographically traceable

No raw AI input is accepted at this stage.

2. Authority verification

The runtime verifies:

policy version consistency
signal hash integrity
executionId uniqueness
decision authenticity

If any check fails, execution is rejected.

3. Enforcement rules

The runtime enforces strict rules:

no unauthorized execution
no replayed decisions
no modified decision payloads
no external override without explicit authorization
4. Execution gating

Only verified Authorization Decisions are allowed to proceed to execution.

The runtime acts as a hard gate:

VALID → execution allowed
INVALID → execution blocked
5. Deterministic enforcement

The runtime is fully deterministic:

same decision → same enforcement outcome
no runtime randomness
no external influence
6. Failure behavior

If verification cannot be completed:

→ execution is rejected (fail-closed)

There is no fallback mode.

Properties of Authority Verification Runtime
Hard enforcement boundary

No execution can bypass this layer.

Deterministic validation

All decisions are verified consistently.

Replay protection

Duplicate or reused decisions are rejected.

Cryptographic trust

All decisions are validated using signatures.

Summary

The Authority Verification Runtime ensures that:

only valid Authorization Decisions are executed
no tampering occurs after governance evaluation
execution is strictly gated and deterministic
system integrity is enforced at runtime boundary
```