Complete Cryptocurrency & Blockchain Knowledge Hub
Explore our full library of “What Is…” guides, from Bitcoin and Solana to hundreds of emerging tokens and blockchain concepts. Learn with fact-checked, beginner-friendly, and expert-level explanations.
What is On-chain Art?
Explore a definitive, fact-checked guide to on-chain art—how fully on-chain NFTs work, why they matter for Web3, and the trade-offs versus off-chain metadata. Includes standards, storage, security, use cases, and future trends.
What is NFT Rarity?
A comprehensive, fact-checked guide to NFT rarity: how it’s defined and calculated, why it matters, key methods, market impact, challenges, and future trends for collectors, creators, and Web3 builders.
What is Soulbound Token?
A comprehensive, fact-checked explainer of Soulbound Token (SBT): how non-transferable tokens work, core standards, real use cases, benefits, risks, and where they fit in Web3 and DeFi.
What is NFT Metadata?
A clear, fact-checked guide to how NFT metadata works across chains like Ethereum and Solana, covering standards, storage (IPFS/Arweave), royalties, dynamic NFTs, benefits, risks, and best practices for Web3 creators, developers, and traders.
What is Address Poisoning?
A comprehensive, fact-checked guide to address poisoning in crypto and Web3: how the scam works, how to spot it, and how to protect your blockchain transactions and wallets.
What is Allowlist/Blocklist?
A comprehensive, fact-checked explainer of allowlists and blocklists in crypto and Web3: how they work in wallets, smart contracts, NFTs, exchanges, and compliance, with real-world examples, benefits, limitations, and future trends like zk-KYC.
What is Transaction Simulation?
Learn how transaction simulation previews on-chain outcomes before you sign, including gas costs, state changes, and MEV risks across EVM, Solana, and rollups. Understand methods, tools, benefits, and limitations used by wallets, dapps, traders, and auditors.
What is Formal Verification?
A comprehensive guide to formal verification, explaining how mathematically proven correctness improves blockchain, DeFi, and Web3 smart contract security. Learn methods, tools, benefits, limits, and real examples developers, traders, and investors should know.
What is Bug Bounty?
A comprehensive, fact-checked guide to bug bounty programs in crypto and Web3: how they work, why they matter, benefits, risks, and best practices for securing blockchains, DeFi, and smart contracts while protecting users and capital.
What is Replay Attack?
A comprehensive, fact-checked guide to replay attacks in blockchain and crypto: how they work, how to prevent them, notable examples, and best practices for DeFi, Web3 apps, and exchanges, with references to reputable sources and internal learning links.
What is Rug Pull?
A comprehensive, fact-checked guide to crypto rug pulls covering definitions, types, mechanics, case studies, detection tips, and prevention strategies for investors and builders across DeFi and Web3.
What is Bech32 Address?
A comprehensive guide to the Bech32 address format: how it works, why it matters for Bitcoin SegWit and Taproot, differences vs legacy, security properties, and real-world uses across Bitcoin, Lightning, Cardano, and Cosmos in the Web3 ecosystem.
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