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Verified contract
A verified contract is a smart contract whose source code has been published and shown to compile to exactly the bytecode deployed on the blockchain. Block explorers mark such contracts, so anyone can read the human-readable code behind an address instead of raw machine code.
What it means for you. Verification lets you, or someone you rely on, read what a contract will do with your tokens before you approve it. It does not mean the code is secure or honest: a verified contract can still contain a bug, an admin key or a drain function in plain sight. An unverified contract asking for an approval keeps its code hidden from you.
Sources: ethereum.org: Verifying smart contracts, ethereum.org: Smart contract security · checked 4 October 2026
Smart contract audit
A smart contract audit is a review of the code behind a crypto app or token by outside security reviewers, looking for bugs and design errors before or after it goes live. The result is usually a public report listing the problems found and whether they were fixed.
What it means for you. An audit is a review at one point in time, not a promise: Ethereum's own developer docs say audits do not catch every bug. Check the date, which version of the code was reviewed, and whether the issues listed were fixed. Code changed after the audit, or admin keys that can change the contract, sit outside what the audit covered.
Source: ethereum.org: Smart contract security · checked 4 October 2026