# 设计原则 Design Principles

1. **每一层独立可验证** — L0/L1/L2/L3/L4 任一层 fraud / 升级不影响其他层
2. **写权限 permissionless，读权限公开** — 任何人都可注册 BehaviorSpec / Model / Policy；consumer 自己选信任谁
3. **经济安全 + 时间窗口** — L0 用 7 天 challenge + 0.5 ETH stake (PoC) 保证 aggregator 不能无成本作恶
4. **跨语言 byte-pin** — Rust / Sol / TS 三栈通过 12 个 keccak literal 锁定一致；任何一栈改 encoding 编译期 fail
5. **Mock 必有 swap 路径** — Halo2 / DCAP / SLM 三个 mock 都有明确的真实现 roadmap
6. **透明优于宣传** — PoC 不掩盖 G1-blocked-structural / 0 轮审计 / 三 mock，所有 status 公开

参考：[5-层架构](/overview/5-layer-architecture.md) §设计原则。


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