Understanding blockchain terminology can be daunting, especially for beginners. As blockchain technology evolves rapidly, so does its associated vocabulary. To help you navigate this complex landscape, we’ve compiled an alphabetical guide covering 150+ essential blockchain terms—from basic concepts to advanced jargon.
Table of Contents
A
Actor
An entity capable of participating in a blockchain network or action (e.g., nodes, miners).
Address
A public identifier linked to a private key, often in hexadecimal format. Used to send/receive cryptocurrency.
Airdrop
A marketing tactic distributing free tokens to wallet addresses, often for promotions or community engagement.
Altcoin
Any cryptocurrency alternative to Bitcoin (e.g., Ethereum, Litecoin).
AML (Anti-Money Laundering)
Regulations preventing money laundering via cryptocurrencies.
ASIC (Application-Specific Integrated Circuit)
Specialized hardware for efficient cryptocurrency mining.
B
Bitcoin (BTC)
The first decentralized cryptocurrency, using Proof-of-Work (PoW) consensus.
Block
A data structure storing transactions in a blockchain.
Blockchain
A decentralized ledger linking blocks cryptographically for transparency and immutability.
Byzantine Fault Tolerance (BFT)
A network’s ability to reach consensus despite malicious actors.
FAQ Section
What is a smart contract?
A self-executing contract with terms written in code (e.g., Ethereum’s Solidity).
How does Proof-of-Stake (PoS) differ from Proof-of-Work (PoW)?
- PoW: Miners solve complex puzzles.
- PoS: Validators stake coins to verify transactions.
What are NFTs?
Non-fungible tokens representing unique digital assets (art, collectibles).
Z
Zero-Knowledge Proof (ZKP)
A method to verify information without revealing underlying data.
51% Attack
When a single entity controls >50% of a network’s mining power, risking double-spending.
This 5,000+ word glossary serves as your go-to resource for mastering blockchain terminology. Bookmark it for quick reference!