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feat: add l2 bridge risk simulator
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‎CHANGELOG.md‎

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本项目遵循 [Keep a Changelog](https://keepachangelog.com/zh-CN/1.1.0/) 格式。
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## [Unreleased]
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### Added
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- 新增 L2 / 跨链桥风险模拟器 `/labs/l2-risk`，用于本地比较 finality、桥信任假设、消息传递、sequencer 状态和嵌入式桥接 UX 风险。
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- 新增双语课程 `L2CrossChain/06_BridgeRiskSimulator`、对应 quiz、术语表条目和 AI-native 索引路径。
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- 新增 credential architecture tradeoff note，将现有 ERC-721 certificate 明确为学习证书设计方案之一，而非默认生产证书系统。
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## [1.0.0] - 2026-02-09
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### Added

‎README.md‎

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<div align="center">
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<strong>An open-source, bilingual, AI-native Web3 curriculum for beginners, builders, and agents.</strong><br/>
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<em>11 modules, 61 lessons, AI Tutor, badges, SEO prerendering, llms.txt, and a read-only MCP server.</em>
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<em>11 modules, 62 lessons, AI Tutor, badges, SEO prerendering, llms.txt, and a read-only MCP server.</em>
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</div>
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<br/>
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| Area | Current status |
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| --------------- | ----------------------------------------------------------------------------- |
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| Course modules | 11 modules |
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| Lessons | 61 lessons in the React course map |
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| AI-native index | 122 indexed bilingual lesson entries |
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| Glossary | 60 Web3 terms |
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| Lessons | 62 lessons in the React course map |
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| AI-native index | 124 indexed bilingual lesson entries |
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| Glossary | 63 Web3 terms |
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| Languages | Chinese first, English in progress |
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| App features | AI Tutor, search, quizzes, badges, XP, dark/light mode, PWA/offline support |
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| Agent surfaces | `llms.txt`, AI manifest, content index, local read-only MCP server |
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| Web3 Ecosystem and Tools | 6 | DeFi, Ethereum, Layer 2, emerging chains, AI x Web3, practical tools |
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| Web3 Builder Lab | 6 | ERC-20 deployment, first DApp, block explorer reading, contract security, wallet and SIWE labs |
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| DeFi Deep Dive | 5 | DeFi architecture, AMMs, lending, stablecoins, risks |
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| Cross-Chain and Layer 2 | 5 | Scaling, rollups, L2 ecosystems, bridges, practical L2 usage |
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| Cross-Chain and Layer 2 | 6 | Scaling, rollups, L2 ecosystems, bridges, risk simulation, practical L2 usage |
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| DAO and Decentralized Governance | 5 | DAO basics, governance design, DAO tooling, case studies, challenges |
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| Ethereum and Smart Accounts | 3 | Post-Pectra/Fusaka Ethereum, account abstraction, UserOperation simulator, smart wallets |
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‎README.zh.md‎

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<div align="center">
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<strong>面向新手、开发者和 AI Agent 的开源双语 Web3 学习体系。</strong><br/>
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<em>11 个模块、61 讲课程、AI Tutor、徽章系统、SEO 预渲染、llms.txt 和只读 MCP server。</em>
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<em>11 个模块、62 讲课程、AI Tutor、徽章系统、SEO 预渲染、llms.txt 和只读 MCP server。</em>
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</div>
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<br/>
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| 项目 | 当前状态 |
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| -------------- | ------------------------------------------------------ |
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| 课程模块 | 11 个 |
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| React 课程地图 | 61 讲 |
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| AI-native 索引 | 122 条双语课程索引记录 |
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| 术语表 | 60 个 Web3 术语 |
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| React 课程地图 | 62 讲 |
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| AI-native 索引 | 124 条双语课程索引记录 |
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| 术语表 | 63 个 Web3 术语 |
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| 语言 | 中文优先，英文持续补齐 |
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| App 功能 | AI Tutor、搜索、测验、徽章、XP、深浅色模式、PWA/离线 |
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| Agent 入口 | `llms.txt`、AI manifest、内容索引、本地只读 MCP server |
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| Web3 生态与工具 | 6 | DeFi、Ethereum、Layer 2、新兴公链、AI x Web3、实用工具 |
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| Web3 Builder 实战 | 6 | ERC-20 部署、第一个 DApp、区块浏览器、合约安全、钱包和 SIWE 实验 |
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| DeFi 深度解析 | 5 | DeFi 架构、AMM、借贷、稳定币、风险 |
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| 跨链与 Layer 2 | 5 | 扩容、Rollup、L2 生态、跨链桥、L2 实操 |
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| 跨链与 Layer 2 | 6 | 扩容、Rollup、L2 生态、跨链桥、风险模拟、L2 实操 |
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| DAO 与去中心化治理 | 5 | DAO 基础、治理机制、DAO 工具、案例、挑战 |
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| 以太坊与智能账户 | 3 | Pectra/Fusaka 后的以太坊、账户抽象、UserOperation 模拟器、智能钱包 |
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‎ai/content-index.json‎

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"excerpt": "L2 与跨链桥风险模拟器 跨链桥不是一个简单的“转账按钮”。它背后是一组 finality 假设、合约、验证者、Relayer、流动性提供者、消息格式和失败路径。本实验帮助你在移动真实价值前先比较这些假设。 Last reviewed: 2026 06 25 目录 为什么桥风险需要模拟器 四个核心问题 跨链路径类型 Finality 不等于 UI 确认 消息传递与失败模式 动手实验 凭证边界 检查清单 延伸阅读 为什么桥风险需要模拟器 很多学习者比较跨链桥时，首先看速度和费用。这有用，但远远不够。 一条跨链路径还隐藏着这些问题： 哪条链或哪个合约是信任锚？ 谁能验证源链事件真实发生？ 这条路径多久之后才算 final？ 如果排序器、Relayer、验证者、流动性提供者或桥合约失败，会发生什么？ 应用只是跳转到桥，还是把桥接流程嵌入自己的产品，并解释跨链消息？ /labs/l2 risk 模拟器把这些问题变成一个小型风险模型。它不",
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"excerpt": "L2 and Bridge Risk Simulator A bridge is not just a transfer button. It is a bundle of finality assumptions, contracts, validators, relayers, liquidity providers, message formats, and failure paths. This lab helps you compare those assumptions before moving real value. Last reviewed: 2026 06 25 Table of Contents Why Bridge Risk Needs A Simulator The Four Questions Bridge Route Types Finality Is Not The Same As UI Con",
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{
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"text": "Finality Is Not The Same As UI Confirmation"
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"text": "Hands-On Lab"
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{
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"level": 2,
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"text": "Credential Boundary"
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},
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{
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"type": "glossary",
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"term": "最终性 (Finality)",
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"definition": "交易或消息达到足够安全、难以被回滚或挑战的状态；跨链场景中 UI 确认不一定等于最终性。",
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"category": "Layer 2",
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}
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},
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{
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"type": "glossary",
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"term": "规范桥 (Canonical Bridge)",
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"definition": "由 Rollup 或链自身协议维护的官方桥接路径，通常以 L1/L2 核心合约作为信任锚，但仍需关注升级和退出风险。",
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"file": "src/config/glossaryData.js",
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}
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"term": "预言机 (Oracle)",

‎ai/llms.txt‎

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Source: https://github.com/beihaili/Get-Started-with-Web3
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Homepage: https://bhbtc.xyz/
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## Artifacts
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- Manifest: ai/manifest.json

‎ai/manifest.json‎

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"repository": {
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"name": "Get-Started-with-Web3",
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],
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"lessons": 124,
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"tools": 8,
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},

‎contracts/README.md‎

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## CertificateNFT
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ERC-721 completion certificate deployed on Base.
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ERC-721 completion certificate contract intended as one possible learning credential option.
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This contract is not the only supported credential design and should not be described as a live production credential system by default. Before changing or deploying credential flows, review `docs/strategy/2026-06-25-credential-architecture-tradeoff.md` for the ERC-721, ERC-1155, soulbound, offchain proof, DID/VC, and attestation tradeoffs.
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### Prerequisites
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- [Foundry](https://book.getfoundry.sh/getting-started/installation)

‎docs/community/good-first-issues.md‎

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- `content`: lesson, translation, quiz, glossary, or source quality.
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- `ai-native`: `llms.txt`, manifest, content index, MCP, or agent citation work.
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- `growth`: distribution, community, SEO, sponsorship, or public positioning.
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- `l2-cross-chain`: L2, bridge risk, message passing, finality, or cross-chain UX work.
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- `identity`: learning identity, certificates, DID/VC, attestations, or credential design work.
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**Verification:** Markdown/app preview and `npm run ai:index && npm run ai:publish && npm run ai:verify`.
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### 16. Add A Bridge Risk Flow Diagram
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**Labels:** `good first issue`, `content`, `l2-cross-chain`
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**Context:** The L2 bridge risk simulator compares finality, trust assumptions, and message passing. A small diagram can help learners see where source chain confirmation, bridge contracts, relayers or validators, and destination execution fit.
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**Acceptance criteria:**
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- Add one diagram to `en/L2CrossChain/06_BridgeRiskSimulator/README.md` or `zh/L2CrossChain/06_BridgeRiskSimulator/README.md`.
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- Show at least Source Chain, Bridge Contract, Relayer / Validator / Proof System, Destination Chain, and User.
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- Include alt text or a Mermaid-compatible text source.
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- Keep the simulator boundary clear: no real asset movement, no bridge ranking, no investment advice.
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**Verification:** Markdown/app preview and `npm run ai:index && npm run ai:publish && npm run ai:verify`.
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### 17. Proofread L2 Bridge Risk Glossary Terms
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**Labels:** `good first issue`, `content`, `l2-cross-chain`
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**Context:** New L2 terms should stay concise and beginner-friendly while preserving the distinction between finality, canonical bridges, and cross-chain messaging.
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**Acceptance criteria:**
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- Review `最终性 (Finality)`, `规范桥 (Canonical Bridge)`, and `跨链消息传递 (Cross-chain Messaging)` in `src/config/glossaryData.js`.
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- Improve wording without changing technical meaning.
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- Keep the category as `Layer 2`.
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- Mention any wording tradeoff in the PR description.
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**Verification:** `npm test -- src/config/__tests__/glossaryData.test.js`.
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### 18. Polish The Credential Architecture Tradeoff Note
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**Labels:** `good first issue`, `content`, `identity`
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**Context:** The credential architecture note explains why the existing ERC-721 certificate contract is only one option among ERC-721, ERC-1155, soulbound, offchain proof, DID/VC, and attestations.
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**Acceptance criteria:**
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- Edit `docs/strategy/2026-06-25-credential-architecture-tradeoff.md`.
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- Improve clarity for non-specialist contributors.
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- Preserve the boundary that no production credential system, minting flow, wallet signature, payment, or contract change is live in Phase 5.
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- Do not add token value, resale, investment, or sponsor claims.
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**Verification:** Maintainer review.

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