Blockchain: What Are Smart Contracts?

Smart contracts are extremely central structure blocks of web 3.0 applications. They are computer programs on the blockchain that permits changing over customary or traditional agreements into computerized matches. These contracts are exceptionally legitimate and logical – following an if this then that structure. This implies they act precisely as customized and can’t be changed. We shall learn what on earth they are and see some examples with use cases.

Contracts are just agreements. That is, any form of agreement can be encapsulated within the conditions of a contract. Verbal agreements or pen-and-paper contracts are acceptable for many things, but they aren’t without flaws.

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Also read: Explain to Me Blockchain in Under 5 Minutes!

What are Smart Contracts?

A smart contract is basically a self-executing program based on if-then logic. For example, vending machines are a ubiquitous presence in everyday life. It’s also a simple model of a smart contract: If someone inserts $1 and then presses B13, then the machine dispenses the package of cookies held in the B13 slot. In other words, if the vending machine receives the required item of value, it performs the requested action.

Você sabe como funciona um Smart Contract? - FRLN Advogados

Smart contracts can run on various architectures, such as distributed ledger technology and blockchain. These contracts on blockchain can perform computations, create currency, store data, mint NFTs, send communications and even generate graphics.

Related: Web3: The Future of the Internet?

Smart Contracts Languages

Different blockchains have different languages that are being implemented to write smart contracts on them. Some of the programming languages used in smart contracts building include;

  • Solidity.
  • Rust.
  • Javascript.
  • Vyper.
  • Yul.
  • Golang.
  • Clarity.
  • Python

Also read: What Is a Crypto Wallet?

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Developer Corner

Getting started as a developer can be daunting as there is a lot to learn but there are smart contracts languages that have proven to be stable and with a big developer community especially those that have been built first.

Smart contract programming languages allow you to write programs that implement smart contracts on the blockchain. For example, if you want to get started on the Ethereum chain, follow this page to learn more and some learning tools.


We have an article about web 3.0 terms, a beginner’s guide to blockchain, Defi, NFTs, and many more. This article has introduced to us another important aspect of the web 3.0 ecosystem. Do let us know in the comment section what you think about this new development and nascent technology.


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