Block
A block is a collection of validated transactions added to a blockchain.
✦ Key Insight
Blocks organize transaction history and maintain blockchain integrity.
✕ Common Misconceptions
Confusing blocks with transactions.
Assuming block time is identical across every blockchain.
Detailed Explanation
How It Works
Transactions are grouped, verified, and permanently linked to previous blocks.
In Practice
Dig Deeper
Blockchain
A blockchain is a decentralized digital ledger that records transactions in blocks, links those blocks together, and makes the record difficult to alter.
Validator
A validator is a network participant in a Proof-of-Stake (PoS) blockchain that stakes cryptocurrency to propose, verify, and finalize new blocks of transactions, earning rewards for honest behavior and risking penalties (slashing) for misconduct.
Mining
Mining is the process used by proof-of-work blockchains in which specialised computers perform computational work to compete for the right to add new blocks. Bitcoin is the most prominent example.