Glossary
Block Explorer
A site for viewing every transaction, wallet and contract on a blockchain.
A block explorer is a search engine for a blockchain. You paste an address, a transaction hash or a block number and see exactly what happened, when, and what it cost.
It is the single most useful tool for verifying claims. If someone says they sent funds, the explorer shows whether they did. Etherscan for Ethereum, Solscan for Solana, and most chains have an equivalent.
Related terms
Airdrop
Free tokens distributed to wallet addresses, usually to reward early users of a protocol.
AMM
Automated Market Maker — a protocol that prices assets with a formula instead of an order book.
APR vs APY
APR is the yearly rate without compounding; APY includes compounding and is always higher.
ATH
All-Time High — the highest price an asset has ever traded at.
Bear Market
A prolonged decline, conventionally 20% or more from recent highs.
Bull Market
A prolonged rise driven by new demand, easy credit and rising confidence.