CRYPTO GLOSSARY

Blockchain

A record of transactions grouped into blocks, where each block is locked to the one before it.

Blockchain in more detail

A blockchain is a record of transactions grouped into blocks, where each block is locked to the one before it. That lock is what makes old records so hard to change.

FROM LESSON 3 · 4 MIN READHow a blockchain worksA blockchain is a record of transactions grouped into blocks, each locked to the one before it. Learn what nodes, hashes and confirmations are.Read the lesson

All 128 terms · Checked against the lesson's sources on 8 October 2026.

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