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Cross-Chain Bridges: How Assets Travel Between Blockchains (Without Getting Robbed)
'🎄 Merry Christmas everyone! Day 20 of the 60‑day “Web3” series
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Ethereum-Solidity Quiz Q2: What is a proxy in Solidity?
What is a proxy in Solidity? A proxy in Solidity is a design pattern used to enable contract upgradability. This is important because smart contract code is im...
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Ethereum-Solidity Quiz Q1: What is fuzzing?
What is fuzzing? Fuzzing is an automated testing technique for smart contracts that generates a pre‑set number of randomized/unexpected inputs that are thrown...
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Revamping Supply Chain: A Blockchain Web3 Case Study
The Problem The primary challenge was the lack of transparency and real‑time tracking in traditional supply chains. This led to inefficiencies, increased costs...
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Reflection of Co-Learning Mantle week 2
What exactly is RWA? The Digital Mirror At its core, Real World Assets RWA are digital representations of physical or financial assets like real estate, gold,...
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# `@xchainjs/xchain-ethereum`
@xchainjs/xchain-ethereum is the official Ethereum client for the XChainJS ecosystem — a modular, TypeScript‑first SDK for building cross‑chain wallets, crypto...
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The Arbitrage Bot Arms Race: What We Learned Running FlashArb in Production
Let me tell you something nobody else will Running a profitable arbitrage bot in 2025 is like playing chess against a thousand grandmasters who all move simult...
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Building an ERC-20 Token From A to Z (Hardhat + OpenZeppelin)
Disclaimer Educational purposes only. Not money, has no intrinsic value, and is not associated with any real‑world brand or stablecoin. Why I Wrote This Article...
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김서준 “이더리움 거래수수료 0원 수렴…금융 시스템의 미래될 것”
“이더리움의 진화 방향을 고려하면 거래 수수료는 장기적으로 ‘0원’에 수렴할 가능성이 큽니다. 다양한......
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ERC-3009: The Protocol Powering x402 Payments
Introduction At the heart of x402's payment mechanism lies ERC‑3009, a standard that enables gasless token transfers through cryptographic signatures. Understa...
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8 Blockchains Developers Are Choosing for Real Production Workloads in 2025
Developer activity in crypto continues to rise. Although users still search for where to buy Bitcoin or check Dogecoin price charts, developers focus on network...