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Smart contract

formal
1 min readupdated 2026-05-29✏️ Suggest an edit🕑 History

A smart contract is a self-executing program deployed on a blockchain. On TON every account (including a user wallet) is a smart contract.

Contracts are written in FunC, Tact, or Tolk → compiled to TVM bytecode → deployed as a BoC at a deterministic address. After deployment, contract behavior is immutable (unless the code includes upgrade logic).

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