Blockchain Fundamentals
Blockchain
A shared record of transactions, stored as a chain of blocks that each reference the one before. Because every participant holds a copy and changing history would mean rewriting every block after it, the record is very hard to alter after the fact. Blockchain is the technology; Bitcoin is one application of it.
Related terms
In the blog
- What is restaking?
- What is an oracle?
- Airdrops, explained
- What are privacy coins?
- What Is a Blockchain Fork?
- Proof-of-Work vs. Proof-of-Stake
- Gas fees, explained
- MEV, explained
- NFTs, explained: what's actually being bought
- Crypto bridges, explained
- What "not your keys, not your coins" actually means
- Layer 2s, explained
- CEX vs. DEX, explained
- Crypto × AI: Where They Actually Intersect
- The CLARITY Act, Explained
- What is RWA tokenization?
More in Blockchain Fundamentals
General education, not investment, legal or tax advice. Markets and regulation change quickly: where a definition depends on current law or on a recent event, check the latest coverage before relying on it.