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Questions and Answers
What is the primary characteristic of a decentralized system?
What is the primary characteristic of a decentralized system?
What happens to transactions once they are recorded on a blockchain?
What happens to transactions once they are recorded on a blockchain?
What is the primary purpose of advanced cryptography in blockchain technology?
What is the primary purpose of advanced cryptography in blockchain technology?
What type of blockchain is open to anyone, with no restrictions?
What type of blockchain is open to anyone, with no restrictions?
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What is a common application of blockchain technology in supply chain management?
What is a common application of blockchain technology in supply chain management?
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What is a benefit of using blockchain technology?
What is a benefit of using blockchain technology?
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How do nodes on the network verify transactions?
How do nodes on the network verify transactions?
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What is a key feature of smart contracts?
What is a key feature of smart contracts?
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Study Notes
What is Blockchain?
- A decentralized, distributed ledger technology that records transactions across a network of computers
- A chain of blocks, each containing multiple transactions, hence the name "blockchain"
Key Features:
- Decentralized: No single entity controls the network or data
- Immutable: Transactions are immutable and cannot be altered once recorded
- Transparent: All transactions are publicly visible
- Secure: Uses advanced cryptography for secure data transmission and storage
How Blockchain Works:
- Network: A network of computers is established, each with a copy of the blockchain
- Transaction: A new transaction is initiated and broadcast to the network
- Verification: Nodes on the network verify the transaction using complex algorithms
- Block creation: A new block is created and added to the blockchain, containing multiple transactions
- Blockchain update: Each node updates its copy of the blockchain to reflect the new block
Types of Blockchain:
- Public blockchain: Open to anyone, no restrictions (e.g., Bitcoin)
- Private blockchain: Restricted access, often used within organizations
- Consortium blockchain: A mix of public and private, with restricted access
Applications of Blockchain:
- Cryptocurrencies: Digital currencies like Bitcoin, Ethereum, and others
- Supply chain management: Tracking and verifying the origin and movement of goods
- Smart contracts: Self-executing contracts with automated rules and regulations
- Identity verification: Secure digital identities for individuals and organizations
Benefits of Blockchain:
- Security: Immutable and tamper-proof data
- Transparency: All transactions are publicly visible
- Efficiency: Automated processes and reduced intermediaries
- Trust: Decentralized network limits the need for central authorities
What is Blockchain?
- Decentralized, distributed ledger technology that records transactions across a network of computers
- A chain of blocks, each containing multiple transactions
Key Features
- Decentralized: no single entity controls the network or data
- Immutable: transactions are unalterable once recorded
- Transparent: all transactions are publicly visible
- Secure: uses advanced cryptography for secure data transmission and storage
How Blockchain Works
- A network of computers is established, each with a copy of the blockchain
- New transactions are initiated and broadcast to the network
- Nodes on the network verify transactions using complex algorithms
- New blocks are created and added to the blockchain, containing multiple transactions
- Each node updates its copy of the blockchain to reflect the new block
Types of Blockchain
- Public blockchain: open to anyone, no restrictions (e.g., Bitcoin)
- Private blockchain: restricted access, often used within organizations
- Consortium blockchain: a mix of public and private, with restricted access
Applications of Blockchain
- Cryptocurrencies: digital currencies like Bitcoin, Ethereum, and others
- Supply chain management: tracking and verifying the origin and movement of goods
- Smart contracts: self-executing contracts with automated rules and regulations
- Identity verification: secure digital identities for individuals and organizations
Benefits of Blockchain
- Security: immutable and tamper-proof data
- Transparency: all transactions are publicly visible
- Efficiency: automated processes and reduced intermediaries
- Trust: decentralized network limits the need for central authorities
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Description
Learn the basics of blockchain technology, including its decentralized, immutable, transparent, and secure features. Understand how it records transactions and its key characteristics.
