Скачать или смотреть What is SMART CONTRACT? - Smart Contracts Explained for everyone

Imagine you want to buy a car, but you don't entirely trust the seller. You're worried they might not deliver the car after you've paid them. Or maybe you're the seller, and you're concerned the buyer won't transfer the money once they have the car. In a traditional scenario, you might need a lawyer and a lot of paperwork to ensure the deal goes smoothly.

This is where smart contracts come in, like a digital superhero in the world of transactions. They're like magic computer programs that make agreements between people trustless, automated, and secure. So, in this guide, we'll unravel the mysteries of smart contracts step by step.

Contracts, Contracts Everywhere;
First, let's get back to basics. What's a contract? It's just a fancy way of saying an agreement between two or more parties. Contracts are all around us. When you buy a house, sign up for a phone plan, or even click "I agree" to those lengthy software terms and conditions, you're entering into a contract. They can be written or spoken, and they can be as simple as "I'll give you $100 for that bicycle" or as complex as a multi-page legal document.

Now, here's the problem: in the world of traditional contracts, trust is a big issue. You have to trust the other party to fulfill their end of the deal. In the bicycle example, you trust that they'll give you the bicycle after you hand over $100. But what if they don't? What if they run off with your money, and you're left without a bicycle?

This trust issue has given birth to lawyers, escrow services, and lots of paperwork, all aimed at making sure both parties fulfill their obligations. It's a bit like having a referee in a game, making sure everyone plays by the rules.

Enter Smart Contracts;
Now, let's introduce our superhero: the smart contract. A smart contract is a self-executing contract with the terms of the agreement directly written into code. It lives on a blockchain, which is like a super-secure digital ledger that records all transactions. Here's how it works in simple terms:

Party A wants to buy Party B's bicycle. They both agree on a price and a set of conditions. Instead of putting their trust in each other, they decide to use a smart contract.

Writing the Code: A smart contract developer writes a piece of code that embodies the terms of the agreement. It might say something like, "If Party A sends $100 to this address, Party B will automatically transfer ownership of the bicycle to Party A."

Deployment on the Blockchain: The code is deployed onto a blockchain, which is a decentralized and tamper-proof network of computers. Once it's on the blockchain, it can't be changed by anyone.
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