# Account-Abstraction Weekly - W1_Feb27

Infra

基础设施

1. Alchemy Smart Contract Wallet Infrastructure Registration

可注册 alchemy 智能合约钱包公测版，链接地址:

Alchemy Website: https://www.alchemy.com/account-abstraction

Alchemy Doc: https://www.alchemy.com//blog/account-abstraction

Including following services:

• • Bundler services：enable dapps and wallets to submit batched transactions rather than hundreds of separate requests - this means cost efficiencies and scalability

• • Paymaster services：making it easy to sponsor and subsidize transaction costs for users on your dapps - this means tools to foster brand loyalty (from mail)

提供 Bundler 和 Paymaster 的服务，可使用批量服务，代付交易

2. Co-author of ERC-4337 founded Pimlico Infrastructure

账户抽象提案 EIP-4337 联合发起人 Kristof Gazso 创立 Web3 基础设施项目 Pimlico

Official Website: https://www.pimlico.io/

Official Github: https://github.com/pimlicolabs

Pimlico's vision is to be the underlying infrastructure layer that will power Ethereum's transition to smart contract wallets through mass ERC-4337 adoption.

We will initially be focusing on providing comprehensive infrastructure for two of the above-mentioned entities: Bundlers and Paymasters, two of the most critical pieces of the puzzle that are missing for wallets building on top of ERC-4337. (from doc)

Pimlico 的愿景是成为基础设施层，通过采用 ERC-4337，为以太坊向智能合同钱包大规模过渡提供动力。最初将集中精力为以下两个实体提供具体的基础设施: Bundlers 和 Paymaster

3. ZeroDev have been included in YCW23

8 个 Web3 新项目，Y Combinator 最新孵化计划 w23 项目一览

Account abstraction wallets as a service

Official WebSite: https://zerodev.app/

Use ZeroDev to create self-custody wallets for your users, powered by account abstraction. These wallets are truly non-custodial, while being easier to use and way more powerful than even custodial wallets, enabling features such as:

• • Gas-free transactions

• • Transaction bundling

• • Programmable security policies

ZeroDev is perfect for anyone who wants to create wallets for users, including Web 2.5 apps, wallet apps, onramps, marketplaces, and more! (from web)

ZeroDev 是建立在 EIP4337 层的 SDK 接入层，能为项目用户建立智能合约钱包，为 web2.5 应用，钱包, 应用入口提供了以下功能：无 gas 费交易，批量交易，可编程安全策略。

Dapps

AA 应用

1. Alchemy Smart Contract Wallets

Alchemy 列出的合约钱包大全

https://www.alchemy.com/best/smart-contract-wallets

2. Paymaster as a Service

一个 paymaster 的 PAAS 仓库

https://github.com/plusminushalf/paas/blob/main/apps/contracts/contracts/DappPaymaster.sol

4. Stackup 4337 Examples

Stackup 基于 4337SDK 的调用案例

https://docs.stackup.sh/docs/guides/quickstart

5. ERC4337 MEV

4337 的 Mev 机器人

https://github.com/kristofgazso/erc4337-mev-searcher-bot

Research

研究

0. Layer 2 Community Grants Winners

https://blog.ethereum.org/2023/02/14/layer-2-grants-roundup

以太坊基金会 2022 年 Layer2 社区捐赠计划获奖项目一览

About Account-Abstraction

• • Candidelabs - ERC-4337 Public Infrastructure An open source bundler and a paymaster service as public good infrastructure for ERC-4337 smart contracts wallets, layer 2 focused.

Candidelabs - ERC-4337 公共基础设施。这是一个作为 ERC-4337 智能合约钱包公共物品基础设施的开源捆绑器（bundler）和支付（paymaster）服务，专注于 Layer 2 。

• • Spiro - zkWallet Multi-party wallets (e.g. Gnosis safe multisigs) are a proven way for a group of users to share control over an account’s digital assets and behaviors. Unfortunately, current implementations of multi-party wallets expose the privacy of their total number of operators and their associated externally owned accounts. The goal of this project is to build a private multi-party wallet that shields end users by employing account abstraction (EIP-4337) and zero-knowledge proofs.

Spiro - zkWallet。多方安全钱包（如 Gnosis 安全多签）是一个行之有效的方法，可以让多个用户共享一个账户的数字资产和行为的控制权。不幸的是，目前多方钱包的实现暴露了多签地址总数及其相关的外部账户（EOA）隐私。Spiro 钱包旨在建立一个私有的多方钱包，通过采用账户抽象（EIP-4337 ）和零知识证明来屏蔽终端用户。

• • Kristof Gazso - Typescript ERC-4337 Bundler The project will include the development of an ERC-4337 bundler in Typescript and the relevant modifications to a Geth node for simulation purposes so that the bundler can run on any directly Geth-compatible chain (which includes most L2s) with little modifications. The bundler will also expose the RPC calls defined in the specification, and maintain an internal mempool to be future-proof when P2P propagation will be developed.

Kristof Gazso - 该项目将包括在 Typescript 中开发一个 ERC-4337 捆绑器（bundler），并为模拟目的对 Geth 节点进行相关修改，以便捆绑器只需进行少量修改便可以在任何直接与 Geth 兼容的链（包括大多数 L2）上运行。该捆绑器还将公开规范中定义的 RPC 调用，并维护一个内部的 mempool，以便在开发 P2P 广播时能够面向未来。

• • Soul Wallet - Open-source ERC-4337 wallet Easy-to-use browser wallet implementation powered by ERC-4337.

Soul Wallet - 开源 ERC-4337 钱包。由 ERC-4337 驱动的易于使用的浏览器钱包实现。

1. Infinitism contract and bundler bump to v0.5

Infinitism 官方 4337 合约和 bundler 服务升级到 v0.5

https://github.com/eth-infinitism/bundler/commit/22166ee14b7ea4d017a365fe36cf9d4a49520e6b

2. Unpacking ERC-4337

https://frontier.tech/unpacking-erc-4337

3. Account Abstraction Using Alt Mempool

https://twitter.com/poojaranjan19/status/1627688634416611329

Join Discussion

#ERC4337 talk includes: 会议内容包括：

• • Key Challenges

• • UserOperation

• • Submit UserOperation to bundler with factory

• • Submit UserOperation to bundler with PayMaster

• • Creating HandleOps Transaction

• • #AccountAPI

• • #MinimalAccount

• • #PayMaster

• • Custom Factory

• • Protection Rule Principles.

• • Code Validation Rules.

• • Storage Validation rules.

• • RPC APIs

• • BundlerSpecTest, Q&A and more

4. 智能合约钱包知识库

https://h0m83hhc6r.feishu.cn/docx/doxcnWoAPjXPXXpoJ9HtRNxJSFb

5. Dapplearning 账户抽象实操 Part101 by Arc

p1 https://youtu.be/1m9QmyDCpFc

p2 https://youtu.be/RgLkyUGPufk

document: https://www.notion.so/1-9d99463f25ca4c32a5776f6f2cb57edf

ETH Hackathon

1. The zkSync Era∎ Hack Series

https://twitter.com/zksync/status/1626710343044198400

Contact:
Wechat: skyhigh22
Email: [email protected]
ENS: skyhighfeng.eth
GitHub: https://github.com/accountjs/aa-research

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