GuidesIntermediate
How to Verify a Contract Yourself
Source verification, proxy verification, and the trust it actually earns. The habit that protects you from unverified rugpulls.
6 min read
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Crypto guides · Guides
Beginner-to-advanced crypto guides on Bitcoin, Ethereum, DeFi, staking, wallets, taxes, and security. Step-by-step tutorials backed by hands-on testing.
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Showing 9 of 49
GuidesIntermediate
What Is an ABI, and Why You Should Care
The bridge between a contract and every wallet or dApp that talks to it. The one file that makes smart contracts usable.
6 min read
GuidesIntermediate
Reading a Smart Contract on Etherscan
Every tab explained — Read, Write, Events, Verified source, Proxy. The habit that separates casual users from serious ones.
8 min read
GuidesIntermediate
ERC-721 vs ERC-1155 vs ERC-404
NFT, semi-fungible, and the "hybrid." Same problem — a token with an identity — three different answers.
7 min read
GuidesIntermediate
ERC-20, Reading It Like an Engineer
approve/transferFrom, allowances, and why token approvals are the #1 phishing vector. What every ERC-20 token actually is under the hood.
8 min read
GuidesIntermediate
Account Abstraction (ERC-4337), Without the Jargon
Bundlers, paymasters, session keys — what actually changes for users. The end of "you must hold ETH to use Ethereum."
7 min read
GuidesIntermediate
EOAs vs Smart-Contract Accounts
The two kinds of accounts Ethereum has, why the distinction matters more than most tutorials admit, and where account abstraction is heading.
7 min read
GuidesIntermediate
Ethereum Gas Fees, Piece by Piece
Base fee, priority fee, EIP-1559 — the mechanics under the "gas" number every transaction pays. Where the money goes and how to price it right.
8 min read
GuidesIntermediate
The Byzantine Generals Problem in Plain Language
Why distributed agreement is hard, and what Bitcoin's solution to it actually was. The intellectual puzzle behind every consensus algorithm.
7 min read