Smart Contract
Smart Contract
A blockchain program that automatically executes contracts without intermediaries, enabling trustworthy transactions.
In Simple Terms
A smart contract is a system where a program automatically runs and completes an agreement when specific conditions are met. Because it operates on blockchain — a technology highly resistant to tampering — transaction records remain accurate and reliable. It is used in areas like insurance claim payouts and digital asset trading, where automated transactions can take place without the need for third-party intermediaries.
Behind the Name
The name combines "Smart" (clever, highly capable) and "Contract." The concept was coined by computer scientist Nick Szabo, who named it to convey that it was far more functionally capable than traditional paper-based contracts. It refers to a system where, once predefined conditions are met, transactions proceed automatically without any human involvement.
Take a Closer Look!
A smart contract is a mechanism that automatically executes agreements and transactions on a blockchain.
Traditional contracts required humans to review and sign documents, or relied on third parties like banks to facilitate the process. With smart contracts, a predefined program checks the conditions and automatically handles the transfer of funds or ownership rights.
A key feature of this system is that transactions are processed automatically according to rules written into the code in advance.
Code and transaction history recorded on the blockchain are highly resistant to tampering, and once deployed on the network, the process runs autonomously based on its design. In simple terms, think of it as a fully automated digital robot with preset rules that executes agreements on your behalf.
On platforms like Ethereum, smart contracts are used across a wide range of applications — from financial services to in-game item trading.
This reduces the need for intermediaries, streamlines procedures, and shortens the time required to complete transactions.