# DIDRegistry — 身份确权

## 设计

system contract slot 0x8017，注入到 zksync-era bootloader。

## DID 格式

* `did:axblade:<bytes20 controller>`
* 关联 DIDDocument (controller, verificationMethods, serviceEndpoints, nonce)
* 支持 delegate (允许其他地址代签)

## CredentialRegistry (0x8018)

签发 / 撤销 Verifiable Credential。only trustedIssuer 列表内地址可签。

## IdentityVerifier (0x8019)

验证 ECDSA / ZK 身份证明 (KYC / age / income / region 6 个 Circom 电路)。

## 主网前必备

* DIDRegistry 独立 audit
* trustedIssuer 治理流程


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