Technical Definition
Blockchain
A decentralized digital ledger that records transactions across a network of computers in a secure and transparent way.
By Crypto University Editorial
CryptocurrencyBitcoinDecentralization
✦ Key Insight
A blockchain is a distributed database where transactions are grouped into blocks and linked together in chronological order. Each block contains transaction data and a cryptographic hash of the previous block, forming a secure chain. Because the ledger is distributed across many computers (called
✕ Common Misconceptions
It is often mistaken for similar sounding terms, but the technical implementation is distinct.
Detailed Explanation
A blockchain is a distributed database where transactions are grouped into blocks and linked together in chronological order. Each block contains transaction data and a cryptographic hash of the previous block, forming a secure chain.
Because the ledger is distributed across many computers (called nodes), no single party controls it. This makes blockchain systems resistant to censorship, fraud, and data tampering.
Blockchain technology is the foundation of cryptocurrencies like Bitcoin and Ethereum, but it is also used in areas such as supply chain tracking, digital identity, and smart contracts.
In Practice
"When someone sends Bitcoin to another person, the transaction is verified by the network and recorded on the blockchain. Once confirmed, the transaction becomes permanent and publicly viewable."
Ad
Get a $100K funded account
See current qualification terms and payout conditions.
Sponsored