Smart Contract
What Are Smart Contracts?
A smart contract is a self-executing program stored on a blockchain that automatically enforces rules and actions when predefined conditions are met. Instead of relying on intermediaries, smart contracts use code to carry out agreements transparently and consistently across a decentralized network.
Once deployed, a smart contract operates exactly as written and cannot be changed easily. It can handle tasks such as transferring funds, issuing tokens, or managing access to services without manual intervention. Transactions and outcomes triggered by smart contracts are recorded on the blockchain, making them verifiable and resistant to tampering.
In a smart contract, the code is the final authority. This means that a payment is released automatically the moment a delivery is confirmed, or yield is distributed exactly when a milestone is hit, without any human needing to click "approve." While this removes the risk of a person changing their mind or making a mistake, it also means the program is rigid. If a condition is not written into the original code, the contract cannot handle it. Many institutions are solving this by using "hybrid contracts" that combine automated code for payments with natural language for legal disputes, providing a way to handle unexpected situations that code cannot predict.
Smart contracts are widely used in decentralized finance (DeFi), digital assets, and decentralized applications (dApps). While they increase efficiency and reduce reliance on third parties, they also require careful design, as errors in code can lead to unintended outcomes.
In 2016, a vulnerability in "The DAO's" smart contract allowed a malicious actor to drain roughly $600 million of ETH. This incident led to a hard fork, resulting in the creation of Ethereum and Ethereum Classic, the latter being the unforked version.
KAST relies on blockchain networks that utilize smart contracts to support stablecoin transfers, ensuring transactions are automated, transparent, and securely executed onchain.
