Your guide to crypto and Web3
Beginner · Exchange guides · Coin basics · Security
bsvar walks you through signing up, buying and withdrawing on major exchanges, understanding coins and Web3, and avoiding common scams — in clear, practical guides.
Bitcoin is a public network and BTC is its native asset. Learn how wallets, transactions, blocks and confirmations fit together, plus what a public ledger can and cannot prove.
What is Web3? Wallets, DeFi, DEX and airdrops explained for beginners.
What is Ethereum? ETH explained: smart contracts, gas, DApps and how it differs from Bitcoin.
What is USDT? Stablecoins explained: the dollar peg, why crypto uses them, and multi-chain transfers.
TRC20 or ERC20 for USDT? The receiving side decides. Compare fees, speed and compatibility, then match the network your recipient actually supports.
What a crypto airdrop is, the common types, how to take part, and how to avoid airdrop scams.
Cold vs hot wallet explained: online vs offline, security vs convenience, and how to choose.