Facts about Cryptocurrency Blockchain Technology
- 06
Distributed ledger technology ensures no single authority controls a public blockchain, with copies of the full transaction history maintained across thousands of independent nodes worldwide.
- 05
Proof of Stake, an alternative consensus mechanism, selects validators based on the amount of cryptocurrency they lock up as collateral rather than computational power.
- 04
The consensus mechanism called Proof of Work requires miners to expend computational energy to validate transactions, securing the network against fraudulent alterations.
- 03
Ethereum introduced smart contracts to blockchain technology, enabling self-executing agreements coded directly onto the network without intermediaries.
- 02
Bitcoin's blockchain, introduced in 2009 by Satoshi Nakamoto, was the first real-world implementation of a distributed, decentralized blockchain ledger.
- 01
A blockchain stores data in chronologically linked blocks, where each block contains a cryptographic hash of the previous block, making past records tamper-evident.