# L1 — 决策回执 PoD

## 核心

**PoDRegistry** 接收 `(modelHash, publicInput, inferenceProof, parents[])`，让以下三种 verifier 之一验证：

| Verifier                   | 现状         | 主网计划               |
| -------------------------- | ---------- | ------------------ |
| **EcdsaInferenceVerifier** | 真 OZ ECDSA | 主网可用               |
| **TeeInferenceVerifier**   | mock DCAP  | 主网前 swap 真 SGX/TDX |
| **ZkmlInferenceVerifier**  | mock Halo2 | 主网前 EZKL swap      |

**DAG**：每个 receipt 通过 `parents[]` 引用前置决策，CausalChainLinker 维护因果链拓扑。

## ModelRegistry 关系

```
ModelRegistry.attestor(modelHash) → 返回 ECDSA 公钥地址
EcdsaInferenceVerifier.verifyInference(modelHash, sig, publicInput)
  └── 校验: ecrecover(eth_signed_msg(publicInput), sig) == modelRegistry.attestor(modelHash)
```

详见：[ModelRegistry 确权](/registries-que-quan/model-registry.md) + [ECDSA 算法](/algorithms/ecdsa-signature-verification.md) + [Halo2/EZKL](/algorithms/halo2-ezkl-zkml.md) + [DCAP TEE](/algorithms/dcap-tee-attestation.md)。

## 链上事实

* 真 ECDSA 验签 chain 391 LIVE
* TEE/zkML 待 swap 后才上主网


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