Learn Basics of Blockchain Technology
Start with the fundamentals of blockchain: distributed ledgers, consensus, blocks, and decentralization. Understand why blockchain is secure and how it enables trustless systems.
Break it down
01What is a Blockchain?
A blockchain is a distributed, immutable ledger of transactions maintained by a network of nodes. Each block contains a list of transactions and a hash of the previous block, forming a secure chain.
# Block structure (pseudo-code)
block = {
index: 1,
timestamp: '2023-01-01',
transactions: [...],
previous_hash: 'abc123',
hash: 'def456'
}02Consensus Mechanisms
Consensus algorithms like Proof of Work (PoW) and Proof of Stake (PoS) ensure agreement on the blockchain state without a central authority.
# PoW: Miners solve puzzles
# PoS: Validators stake tokens to propose blocks.03Decentralization & Trustlessness
Decentralization means no single entity controls the network. Trustlessness means you don't need to trust any one party—rules are enforced by code.
# Anyone can run a node and verify transactions.Take it further
Continue learning on these source websites.
Blockchain Demo(opens in a new tab)Mastering Bitcoin (free)(opens in a new tab)