BTC What is Bitcoin? ▲ Read guide
BLOCKCHAIN How it works ▲ New guide
KEYS Private & public keys ▲ Security
ALT What are altcoins? ▲ Basics
SINCE 2018 Trusted crypto education ▲ 100+ guides
BTC What is Bitcoin? ▲ Read guide
BLOCKCHAIN How it works ▲ New guide
KEYS Private & public keys ▲ Security
ALT What are altcoins? ▲ Basics
SINCE 2018 Trusted crypto education ▲ 100+ guides
Trusted crypto education since 2018
Understand
Crypto. Simply.
Plain-English guides on Bitcoin, Ethereum, blockchain and everything in between — no jargon, no hype, just facts. Free forever.
Start with the basics

Featured Guide
Cryptocurrency is a form of digital money that runs on a computer network with no bank or government controlling it. This guide covers everything from how it works to why it matters — the perfect starting point.
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Latest articles
Fresh guides on Bitcoin, blockchain and crypto fundamentals — updated regularly.

Bitcoin
A digital currency no government issues and no bank controls — running on a global network of computers.
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Blockchain
A shared digital ledger across a network of computers — no single point of control or failure.
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History
A trillion-dollar market cap and an anonymous creator. Here’s the full story behind Bitcoin’s origin.
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Bitcoin
A digital payment system that runs without any bank or government in the middle.
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Timeline
In 2009 someone sold 5,050 BTC for $5.02. See the complete price timeline from zero to today.
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Security
The string of characters that gives you access to your crypto. Learn what it is and how to keep it safe.
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Frequently asked questions
What is cryptocurrency? +
Cryptocurrency is a form of digital money secured by cryptography and running on a decentralised computer network. No single bank or government controls it. Bitcoin was the first, launched in 2009, and thousands of others have followed.
What is Bitcoin? +
Bitcoin is the world’s first cryptocurrency, created in 2009 by the pseudonymous Satoshi Nakamoto. It is a decentralised digital currency that allows peer-to-peer transactions without a bank. There will only ever be 21 million bitcoins in existence.
What is blockchain? +
A blockchain is a shared digital ledger that records transactions across a network of computers. No single person or organisation controls it. Once data is written to a block and added to the chain, it is extremely difficult to alter — making it transparent and tamper-resistant.
What is a private key? +
A private key is a unique string of letters and numbers that gives you access to your cryptocurrency. Think of it like a password that cannot be reset. Anyone who has your private key can access your funds — never share it with anyone.
Is crypto a good investment? +
This is not financial advice. Cryptocurrency is a high-risk asset class with significant price volatility. Before making any investment decision, conduct your own research, understand the risks, and consider consulting a licensed financial adviser.