Blockchain and Cryptocurrency fundamentals

Blockchain is a decentralized, digital ledger technology that records transactions across a network of computers in a secure, transparent, and immutable way. Each transaction is grouped into a "block," which is linked to the previous block, forming a "chain" of records that is resistant to tampering.

Cryptocurrency is a type of digital or virtual currency that uses cryptography for security and operates on blockchain technology. Unlike traditional currencies, cryptocurrencies are typically decentralized, meaning they are not controlled by any central authority like a government or financial institution. Bitcoin, the first and most well-known cryptocurrency, and others like Ethereum, are examples of how blockchain technology enables secure, peer-to-peer transactions without intermediaries.

Together, blockchain and cryptocurrency provide a foundation for new forms of digital money and decentralized applications, driving innovation in finance, supply chain management, and beyond.