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

# Contract Deployments

> Safe and infrastructure contract addresses on BNB Chain.

All Zhentan smart accounts are **Safe 1.4.1 proxies** on BNB Chain (BSC). Account creation is versioned — the recipe that derives an account's address is pinned forever in its immutable creation snapshot:

| Derivation       | Recipe                                                                                        | Applies to                                                  |
| ---------------- | --------------------------------------------------------------------------------------------- | ----------------------------------------------------------- |
| **v2** (current) | Vanilla stock Safe — protocol-kit initializer, `CompatibilityFallbackHandler`, **no modules** | All new accounts                                            |
| **v1** (legacy)  | Permissionless initializer with the `Safe4337Module` enabled                                  | Pre-refactor accounts, [pinned forever](/technology/legacy) |

Transactions execute as standard Safe `execTransaction` calls relayed by the agent EOA (which pays BNB gas). ERC-4337 UserOperations survive **only** for legacy pre-refactor queued transactions.

## Smart Account Infrastructure

| Contract             | Address                                                                                                                | Description                                           |
| -------------------- | ---------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------- |
| Safe Singleton 1.4.1 | [`0x29fcB43b46531BcA003ddC8FCB67FFE91900C762`](https://bscscan.com/address/0x29fcB43b46531BcA003ddC8FCB67FFE91900C762) | Smart account implementation used by all Safe proxies |
| Safe Proxy Factory   | [`0x4e1DCf7AD4e460CfD30791CCC4F9c8a4f820ec67`](https://bscscan.com/address/0x4e1DCf7AD4e460CfD30791CCC4F9c8a4f820ec67) | Deploys per-user Safe proxy instances                 |
| Safe4337Module       | [`0x75cf11467937ce3F2f357CE24ffc3DBF8fD5c226`](https://bscscan.com/address/0x75cf11467937ce3F2f357CE24ffc3DBF8fD5c226) | ERC-4337 module — **v1 (legacy) accounts only**       |

## ERC-4337 (Legacy Only)

| Contract        | Address                                                                                                                | Description                                                           |
| --------------- | ---------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------- |
| EntryPoint v0.7 | [`0x0000000071727De22E5E9d8BAf0edAc6f37da032`](https://bscscan.com/address/0x0000000071727De22E5E9d8BAf0edAc6f37da032) | ERC-4337 entry point — used only for pre-refactor queued transactions |

## Services

| Service                                                                                    | Role                                                                                                                                                                     |
| ------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| [Safe Transaction Service](https://docs.safe.global/core-api/transaction-service-overview) | Every proposal is mirrored here at 1/2 — the same backend app.safe.global reads, which is what makes the [user override path](/technology/signing#the-2-of-3-model) work |
| [Pimlico](https://pimlico.io)                                                              | Bundler/paymaster — legacy 4337 rows and treasury payouts only                                                                                                           |

## Network

| Parameter | Value                                       |
| --------- | ------------------------------------------- |
| Chain     | BNB Chain (BSC)                             |
| Chain ID  | 56                                          |
| RPC       | `https://1rpc.io/bnb` (overridable via env) |
| Explorer  | [bscscan.com](https://bscscan.com)          |