Token locking is the process of transferring tokens into a smart contract that holds them in a Program Derived Address until a specified unlock date. The tokens cannot be withdrawn before that date by anyone — including the original depositor.

Token locking is distinct from token vesting. Token locking releases the full locked amount on a single fixed date. Token vesting releases tokens gradually on a schedule. Token locking is simpler and is typically used for LP tokens, dev wallet tokens, and team allocations.

On Solana, token locks are publicly verifiable on Solscan using the token mint address. Investors can check independently that tokens are locked without trusting the project team.