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fix yml
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23 files changed

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‎54_CrossChainBridge/config.yml‎

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id: '54'
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id: 54-cross-chain-bridge
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name: 54. Cross-chain bridge
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summary: I'm recently re-learning solidity, consolidating the details, and writing
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a "WTF Solidity Minimalist Introduction" for novices (programming experts can find
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another tutorial), updating 1-3 lectures ev
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level: advanced
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summary: Understand how cross-chain bridges work and learn to implement secure bridge contracts for transferring assets between different blockchain networks.
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level: 2
75
tags:
86
- solidity
97
- erc20

‎55_MultiCall/config.yml‎

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id: '55'
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id: 55-multiple-calls
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name: 55. Multiple calls
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summary: I'm recently re-learning solidity, consolidating the details, and writing
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a "WTF Solidity Minimalist Introduction" for novices (programming experts can find
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another tutorial), updating 1-3 lectures ev
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level: advanced
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summary: Learn how to aggregate multiple contract calls into a single transaction using MultiCall, improving efficiency and reducing gas costs in Solidity applications.
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level: 2
75
tags:
86
- solidity
97
- erc20

‎56_DEX/config.yml‎

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id: '56'
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id: 56-decentralized-exchange
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name: 56. Decentralized Exchange
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summary: I'm recently re-learning solidity, consolidating the details, and writing
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a "WTF Solidity Minimalist Introduction" for novices (programming experts can find
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another tutorial), updating 1-3 lectures ev
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level: advanced
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summary: Build a decentralized exchange (DEX) from scratch, learning about automated market makers (AMM), liquidity pools, and token swapping mechanisms.
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level: 2
75
tags:
86
- solidity
97
- erc20

‎57_Flashloan/config.yml‎

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id: '57'
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id: 57-flash-loan
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name: 57. Flash loan
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summary: I'm recently re-learning solidity, consolidating the details, and writing
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a "WTF Solidity Minimalist Introduction" for novices (programming experts can find
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another tutorial), updating 1-3 lectures ev
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level: advanced
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summary: Master flash loans in DeFi by learning how to borrow large amounts without collateral and execute complex arbitrage strategies within a single transaction.
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level: 2
75
tags:
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- solidity
97
- flashloan

‎S01_ReentrancyAttack_en/config.yml‎

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id: S01
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id: s01-reentrancy-attack
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name: S01. Reentrancy Attack
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summary: 'English translations by: [@to_22X](https://twitter.com/to_22X) --- In this
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lesson, we will introduce the most common type of smart contract attack - a reentrancy
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attack, which has led to the Ethereum '
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level: advanced
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summary: Learn about the most common type of smart contract attack - reentrancy attacks. Understand how they work, their historical impact on Ethereum, and how to prevent them in your contracts.
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level: 2
75
tags:
86
- solidity
97
- security

‎S02_SelectorClash_en/config.yml‎

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id: S02
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id: s02-selector-clash
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name: S02. Selector Clash
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summary: 'English translations by: [@to_22X](https://twitter.com/to_22X) --- In this
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lesson, we will introduce the selector clash attack, which is one of the reasons
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behind the hack of the cross-chain bridge Po'
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level: advanced
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summary: Understand selector clash attacks that exploit function signature collisions. Learn how this vulnerability contributed to major cross-chain bridge hacks and how to protect against it.
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level: 2
75
tags:
86
- solidity
97
- security

‎S03_Centralization_en/config.yml‎

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id: S03
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id: s03-centralization-risks
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name: S03. Centralization Risks
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summary: 'English translations by: [@to_22X](https://twitter.com/to_22X) --- In this
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lesson, we will discuss the risks of centralization and pseudo-decentralization
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in smart contracts. The `Ronin` bridge and `H'
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level: advanced
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summary: Explore the risks of centralization and pseudo-decentralization in smart contracts. Learn from real-world examples like the Ronin bridge hack and how to design more resilient systems.
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level: 2
75
tags:
86
- solidity
97
- security

‎S04_AccessControlExploit_en/config.yml‎

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id: S04
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id: s04-access-control-exploit
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name: S04. Access Control Exploit
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summary: 'English translations by: [@to_22X](https://twitter.com/to_22X) ----- In
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this lesson, we will discuss the access control vulnerabilities in smart contracts.
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These vulnerabilities led to the Poly Networ'
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level: advanced
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summary: Study access control vulnerabilities in smart contracts that led to major exploits like the Poly Network hack. Learn proper access control patterns and security best practices.
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level: 2
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tags:
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- solidity
97
- security

‎S05_Overflow_en/config.yml‎

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id: S05
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id: s05-integer-overflow
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name: S05. Integer Overflow
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summary: 'English translations by: [@to_22X](https://twitter.com/to_22X) ----- In
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this lesson, we will introduce the integer overflow vulnerability (Arithmetic Over/Under
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Flows). This is a relatively common vul'
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level: advanced
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summary: Discover integer overflow and underflow vulnerabilities in Solidity. Learn how arithmetic operations can be exploited and how to use SafeMath or Solidity 0.8+ to prevent these issues.
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level: 2
75
tags:
86
- solidity
97
- security

‎S06_SignatureReplay_en/config.yml‎

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id: S06
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id: s06-signature-replay
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name: S06. Signature Replay
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summary: 'English translations by: [@to_22X](https://twitter.com/to_22X) --- In this
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lesson, we will introduce the Signature Replay attack and how to prevent it in smart
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contracts, which indirectly led to the t'
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level: advanced
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summary: Learn about signature replay attacks where valid signatures can be reused maliciously. Understand nonces, chain IDs, and other techniques to prevent signature replay vulnerabilities.
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level: 2
75
tags:
86
- solidity
97
- security

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