Chen — Infrastructure architecture & contracts

Architecture proposal, not approval or production certification. Latency and broker integration claims are not independently verified.

ที่มา: 01_chen_cto_architecture_spec.md
Source SHA-256: 0634b4d6ce536175c15b3972b63f5302ed48fc4bdb44582542e99a236ca49755

Published excerpt/source viewer; original archived privately. Hash identifies source bytes, not authorship, endorsement or production acceptance.

## 1. System Mission & Core Philosophy
The primary vulnerability in retail and institutional prop-firm algorithmic trading is not edge degradation—it is telemetry failure disguised as normal operations. Most trading platforms are designed **fail-open** (optimistic execution): when network lag occurs, stale ticks are accepted, or risk limits fail to respond, the platform allows trades through.

The **XpFirm Engine** enforces a strict **Fail-Closed Architecture**:
> *"When telemetry degrades, heartbeats expire, or risk thresholds are ambiguous, the system state transitions immediately to BLOCKED. No order may reach the broker bridge without fresh, cryptographic consensus across all pre-trade safety gates."*

---