Blockchain technology utilizes a distributed ledger system to maintain a secure and tamper-proof record of transactions, ensuring data integrity and preventing unauthorized modifications.

SHA-256 (Secure Hash Algorithm 256) is a widely used cryptographic hash function in blockchain networks. It converts data into a fixed-size hash value, ensuring data integrity and preventing tampering.

A consensus mechanism is a set of rules and procedures used in blockchain networks to verify transactions and add new blocks to the blockchain in a secure and consistent manner.

Proof-of-Stake (PoS) is a consensus mechanism that validates transactions and adds new blocks to the blockchain based on the amount of cryptocurrency a node holds, making it more energy-efficient and scalable compared to Proof-of-Work (PoW).

A smart contract is a self-executing contract with predefined conditions that are stored on the blockchain. It automatically executes the terms of the contract when certain conditions are met, ensuring transparency and security.

Mining is the process of adding new blocks to the blockchain. Miners use specialized computers to solve complex mathematical problems to validate transactions and add new blocks to the blockchain, securing the network and earning rewards in the form of cryptocurrency.

AI-powered threat detection and prevention is an emerging trend in blockchain security that utilizes artificial intelligence (AI) and machine learning (ML) algorithms to identify and mitigate security threats, such as phishing attacks, malware, and unauthorized access attempts.

Sharding is the process of dividing the blockchain into smaller, more manageable segments called shards. This technique improves scalability and transaction throughput by allowing different nodes to validate and process transactions in parallel.

Post-quantum cryptography is an emerging trend in blockchain security that focuses on developing cryptographic algorithms that are resistant to attacks from quantum computers. These algorithms aim to protect blockchain networks from potential threats posed by the advancement of quantum computing technology.

Validation is the process of verifying the authenticity and integrity of data on the blockchain. It involves checking the validity of transactions, ensuring that they comply with the rules and regulations of the blockchain network.

Zero-knowledge proofs are an emerging trend in blockchain security that aims to improve the security and privacy of blockchain transactions by allowing one party to prove to another party that they know a piece of information without revealing the information itself.

Decentralization is the process of securing blockchain networks by distributing the responsibility of maintaining the blockchain among multiple nodes. This ensures that no single entity has control over the network, making it more resistant to attacks and censorship.

Post-quantum cryptography is an emerging trend in blockchain security that focuses on developing cryptographic algorithms that are resistant to attacks from quantum computers. These algorithms aim to protect blockchain networks from potential threats posed by the advancement of quantum computing technology.

Decentralization is the process of securing blockchain networks by distributing the responsibility of maintaining the blockchain among multiple nodes. This ensures that no single entity has control over the network, making it more resistant to attacks and censorship.

Post-quantum cryptography is an emerging trend in blockchain security that focuses on developing cryptographic algorithms that are resistant to attacks from quantum computers. These algorithms aim to protect blockchain networks from potential threats posed by the advancement of quantum computing technology.