Blockchain
is a distributed ledger technology characterized by decentralization, immutability, and transparency. It ensures consensus among all nodes in the network for data addition through consensus mechanisms.
✔️ Role: Blockchain is the underlying technology that provides a secure, transparent, and decentralized infrastructure that can be used to record transactions or other data.
✔️ Application Scenarios: Not just cryptocurrencies, but also supply chain management, data storage, identity verification, smart contracts, and more.
✔️ Relationship with Bitcoin: Bitcoin is the first application of blockchain technology, and blockchain is the core technology that supports Bitcoin's operation.
🔵 Bitcoin
is a digital currency aimed at enabling peer-to-peer value transfer, decentralized, and not reliant on any central authority (such as banks).
✔️ Features
Decentralized
Finite Supply
Blockchain Driven: Bitcoin's transaction records are maintained through blockchain technology.
✔️ Relationship with Blockchain: Bitcoin is the first successful application of blockchain technology, which provides a distributed ledger to record all Bitcoin transactions.
✔️ Relationship with Web3: Bitcoin can be seen as part of the Web3 ecosystem, but its functionality is more focused on value storage and payment.
🔵 Web3
is a new form of decentralized internet based on blockchain technology. It aims to build a new type of internet where users can directly control their data, identity, and assets through blockchain, cryptocurrencies, and decentralized protocols.
✔️ Features
Decentralized
User Ownership: Users control their own data and digital assets, for example, by directly managing assets through cryptocurrency wallets.
Smart Contracts: Achieve automated operations without intermediaries through smart contracts on the blockchain.
Economic Incentives: Encourage user participation and contribution through a token economic model.
✔️ Relationship with Blockchain: Blockchain is the technological foundation of Web3, and applications in Web3 (such as decentralized finance, NFTs) rely on the distributed ledger and smart contracts of blockchain.
✔️ Relationship with Bitcoin: Bitcoin is part of the Web3 ecosystem, but the scope of Web3 is broader, while Bitcoin mainly focuses on the function of digital currency.
🔵 Relationship among the Three
Blockchain is a cryptographic technology, Bitcoin is a derivative asset of blockchain, and Web3 is the commercial form of blockchain.
✅ Analogy:
Blockchain is 'electricity', providing the basic energy;
Bitcoin is 'light bulb', the first successful application of electricity;
Web3 is 'smart grid', a more complex and extensive system based on electricity.

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