what is smart contract?

a program that runs on a blockchain and moves tokens according to its code.

tokens, swaps, lending and vesting all run on smart contracts. their code can contain powers (like minting or pausing) and bugs, so who controls them matters.

related words

block explorer a free public website that shows the transactions, addresses and contracts on a blockchain.
EVM chain ethereum and other blockchains that work the same way.
lightning a payment network built on top of bitcoin for fast, small payments.

part of the topic whitepapers: free articles, more words and the guide.

checked 2026-10-20. education, not advice. found a mistake? see corrections.