Bitcoin

Bitcoin is a digital currency, introduced in 2009 by an anonymous entity, Satoshi Nakamoto. It uses blockchain technology for secure, transparent transactions, without central bank oversight. Transactions are direct, offering freedom and anonymity. Bitcoins are created and transactions validated through mining, where computers solve complex problems.

Ethereum

Ethereum, launched in 2015 by Vitalik Buterin and co-founders, is a decentralized platform with its cryptocurrency, Ether (ETH). It supports smart contracts and DApps, operating without downtime, fraud, or third-party interference. Smart contracts execute automatically when conditions are met. Ethereum enables applications like DeFi and NFTs, differing from Bitcoin's primary currency role by supporting various DApps.

Blockchain

Blockchain is a secure, decentralized database technology that records transactions across many computers. It ensures data integrity and transparency without central authority, using cryptographic hashing and consensus mechanisms.

Address

A string of character used to receive cryptocurrency transactions.

Altcoin

Any cryptocurrency other than Bitcoin.

Cold Wallet

An offline storage method for cryptocurrencies to protect them from hacking.

Cryptography

The practice of securing information by transforming it into an unreadable format.

Decentralization

Distribution of authority, information, and power across a network, rather than being held by a single central entity.

DeFi (Decentralized Finance)

Financial systems that operate without central authorities, using blockchain technology.

Digital Signature

A cryptographic code that verifies the authenticity and integrity of a digital message or document.