# Blockchain

**Published by:** [Untitled](https://paragraph.com/@0x229ee1564a8628d3db6c0cd37a4f806861bc751a/)
**Published on:** 2024-05-09
**URL:** https://paragraph.com/@0x229ee1564a8628d3db6c0cd37a4f806861bc751a/blockchain

## Content

What is blockchain? Definition: Blockchain is a decentralized and secure digital ledger that records transactions across a network of computers[^8]. It ensures transparency, immutability, and tamper resistance, making data manipulation difficult. Functionality: Each transaction, or 'block', is securely linked to the previous one, forming a continuous chain of information[^11]. This distributed ledger eliminates the need for intermediaries like banks, enabling peer-to-peer transactions and reducing costs. Applications: Beyond cryptocurrencies, blockchain technology has found applications in various industries such as supply chain management, healthcare, and finance[^14]. It offers enhanced efficiency, traceability, and decentralized solutions. Security: Blockchain uses encryption to protect sensitive data, ensuring that transactions are secure and resistant to hacking[^12]. Decentralization: Blockchain operates on a decentralized network, also known as a distributed-ledger technology (DLT), where there is no single authority overseeing transactions[^13].

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