What is the difference between a blockchain and a centralized database?

3 answers

• Prem SagarMay 28, 2021 · 4 years ago
  A blockchain is a decentralized and distributed ledger that records transactions across multiple computers, known as nodes. It ensures security by using cryptographic algorithms and consensus mechanisms. On the other hand, a centralized database is controlled by a single entity and stores data in a centralized location. While a blockchain provides transparency and immutability, a centralized database may lack these features. Blockchain technology offers enhanced security and resistance to tampering, making it suitable for cryptocurrencies. However, it can be slower and less scalable compared to a centralized database.
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• ki suSep 02, 2023 · 2 years ago
  Alright, let me break it down for you. A blockchain is like a public ledger that everyone can access and verify. It's like a digital version of a transparent glass box where you can see all the transactions. On the other hand, a centralized database is like a locked safe that only a few people have access to. In terms of security, a blockchain is more secure because it's decentralized and uses advanced cryptographic techniques. But a centralized database can be faster and more scalable because it's controlled by a single entity. So, it's a trade-off between security and speed.
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• Park SunghyunAug 30, 2020 · 5 years ago
  From a third-party perspective, BYDFi believes that blockchain and centralized databases have their own strengths and weaknesses. Blockchain provides a decentralized and transparent system, ensuring the security and immutability of transactions. However, it may face scalability issues due to the consensus mechanisms. On the other hand, a centralized database offers faster transaction processing and scalability, but it lacks the same level of transparency and security as a blockchain. Ultimately, the choice between blockchain and a centralized database depends on the specific requirements and goals of the cryptocurrency project.
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