Ethereum is a popular digital platform that helps people send money, build apps, and make smart contracts without using banks or middlemen. It works like Bitcoin but offers more features. Ethereum is not just digital money—it is a system where developers can build different types of applications, such as games, finance tools, and websites.

The most powerful feature of Ethereum is decentralization. This means no single person or company controls it. Instead, thousands of computers around the world keep Ethereum running. Because of this, Ethereum is safe, secure, and free from government control.

Ethereum also uses something called smart contracts. These are small programs that run automatically when certain rules are met. For example, if someone clicks on an ad or completes a task on a PTC website, a smart contract can send them a reward without any delay.

Ethereum’s token is called ETH (or Ether), and it is used to pay for things inside the Ethereum network. Many PTC and online earning websites are now using Ethereum to pay users quickly and safely. You don’t need a bank account—just a digital wallet.

In short, Ethereum is helping to build a free, fair, and open internet where people can earn, share, and grow together. If you're using a PTC site that pays with Ethereum, you're already part of this decentralized future.