Learn crypto before you risk money on it

Plain-English lessons, transparent calculators and scam checks for complete beginners — built on primary sources such as the Bitcoin whitepaper, NIST and financial regulators, not on exchange marketing.

1 · Understand itWhat Bitcoin and blockchains are, and how wallets and keys work.2 · Stay safeThe scam red flags regulators see every day, and how to check a firm.3 · Do the mathsCalculators that include fees and make you test losses, not just gains.

Start with these

What is Bitcoin?
Where Bitcoin came from, how it works step by step, and the risks regulators warn about.
What is a blockchain?
Blocks, hashes and consensus in plain English — plus the myths NIST says to ignore.
Crypto wallets and private keys
Why your wallet holds keys, not coins — and what happens if you lose them.
Crypto scam red flags
The warning signs regulators see again and again — and what to do if you spot one.
Crypto profit calculator (with fees)
Profit or loss after buy and sell fees, plus your break-even price. Formulas included.

How Blockhorizon works

Every fact on this site is checked against a primary source — a regulator, a statistics body or an original technical document — and listed at the bottom of the page. Our learning pages carry no affiliate links. Read our editorial policy and how we make money.