Sign in Create account

Blockchain Fundamentals

In-depth articles on blockchain technology, DeFi protocols, consensus mechanisms, and the infrastructure powering decentralised finance.

Blockchain Fundamentals articles

10 articles
Blockchain Fundamentals 10 min read

What Is a Blockchain?

A technical primer on distributed ledger technology: how blocks are linked cryptographically, why immutability matters, and what makes blockchains distinct f...
Blockchain Fundamentals 9 min read

What Is a Hash?

An in-depth look at cryptographic hash functions, their essential properties, and the foundational role they play in securing blockchain networks.
Blockchain Fundamentals 9 min read

What Is a Merkle Tree?

How Merkle trees enable efficient and trustless data verification in blockchain systems through hierarchical hashing.
Blockchain Fundamentals 10 min read

Anatomy of a Block

A detailed breakdown of what a blockchain block contains, from block headers and transaction roots to nonces, timestamps, and uncle blocks.
Blockchain Fundamentals 10 min read

What Are Nodes?

An examination of the different types of blockchain nodes, their roles in network operation, and how they communicate to maintain consensus.
Blockchain Fundamentals 11 min read

What Is a Wallet?

A comprehensive guide to blockchain wallets: how they work, the different types, seed phrase mechanics, and security best practices for institutional and ind...
Blockchain Fundamentals 10 min read

Public Keys and Private Keys

How asymmetric cryptography underpins blockchain identity and authorization, from key generation to digital signatures and their security implications.
Blockchain Fundamentals 11 min read

What Is a Blockchain Transaction?

The complete lifecycle of a blockchain transaction, from construction and signing through mempool propagation, block inclusion, confirmation, and finality.
Blockchain Fundamentals 10 min read

What Is Gas?

How Ethereum's gas mechanism works: gas limits, gas prices, EIP-1559 fee structure, base fees, priority fees, and strategies for optimizing transaction costs.
Blockchain Fundamentals 10 min read

What Is a Fork?

Hard forks versus soft forks, planned upgrades versus contentious splits, and the historical examples that shaped the blockchain landscape.