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Anonymity in blockchain and cryptocurrency refers to the feature that allows users to conduct transactions or network activities without revealing their real identities. Anonymity can be classified as pseudonymous (like Bitcoin) or strongly anonymous (like Monero), with the latter employing cryptographic techniques such as ring signatures and zero-knowledge proofs to provide enhanced identity privacy protection.

Accretion in cryptocurrency refers to the gradual increase in value or quantity of digital assets over time, typically achieved through mechanisms like staking, liquidity mining, or yield farming. This concept emphasizes the progressive accumulation of assets rather than price appreciation from market fluctuations.

An Automated Market Maker (AMM) is an algorithmic trading mechanism based on smart contracts that replaces traditional order books with mathematical formulas (typically constant product formulas like x*y=k) to create liquidity pools backed by token reserves, allowing traders to transact directly with a contract rather than counterparties. This mechanism enables decentralized exchanges (DEXs) to offer permissionless, 24/7 token swapping services without requiring a central authority to match trades.

An Epoch is a fixed time unit in blockchain networks defined by either a predetermined number of blocks or a specific time interval, used to organize network activities such as staking reward distribution, validator rotation, or protocol parameter adjustments. Epoch lengths vary across blockchains, with Bitcoin's epochs occurring every 210,000 blocks (approximately four years), while Proof of Stake networks like Ethereum 2.0 have shorter epochs lasting hours or days.

Encryption is a data security protection technique that converts plaintext information into unreadable ciphertext through algorithms, ensuring information confidentiality during transmission and storage. In blockchain and cryptocurrency domains, encryption technologies primarily fall into symmetric encryption (like AES), asymmetric encryption (such as RSA and elliptic curve algorithms), and hash functions (like SHA-256) that generate unique digital fingerprints.

Fiat currency refers to money issued and recognized by a nation or government, whose value is not directly backed by physical assets like gold or silver, but rather by government credit and legal provisions. Common fiat currencies include the US dollar, euro, and yuan, which are issued and managed by central banks and maintain value stability through monetary policy regulation.

Fiat currency is a government-issued money declared as legal tender, deriving its value from the issuing government's creditworthiness rather than being backed by physical commodities like gold. As the predominant form of money in the modern global financial system, fiat currencies are managed by central banks or monetary authorities and carry the force of law for circulation and debt settlement.

Fiat money is legal tender issued by governments or central banks, deriving its value from government credit rather than physical commodities like gold. It possesses legal tender status, requiring mandatory acceptance within its jurisdiction. Examples include the US Dollar, Euro, and Chinese Yuan, which form the foundation of the current global monetary system.

IPO (Initial Public Offering) refers to the process by which a privately held company issues shares to the public for the first time, becoming a publicly traded entity. In the cryptocurrency space, the IPO concept has evolved to include various forms such as traditional stock exchange listings (like Coinbase), Security Token Offerings (STOs), and Initial Exchange Offerings (IEOs), representing a significant milestone for blockchain projects in terms of fundraising and market maturity.

The iShares Bitcoin Trust (IBIT) is an exchange-traded fund (ETF) that directly tracks the spot price of Bitcoin, managed by BlackRock and listed on the Nasdaq exchange. It allows investors to gain indirect exposure to Bitcoin by purchasing ETF shares without dealing with technical aspects like managing cryptocurrency wallets or securing private keys. The fund holds physical Bitcoin as its underlying asset, custodied by Coinbase Custody, and charges a 0.25% annual management fee.

NFT (Non-Fungible Token) is a unique digital asset based on blockchain technology, characterized by its indivisible and irreplaceable nature, with each NFT possessing a unique identification code and metadata. They are typically created following standards like Ethereum's ERC-721 or ERC-1155, capable of definitively proving ownership, authenticity, and scarcity of digital content.

P&L (Profit and Loss) refers to the sum of financial outcomes from a trader's investment activities over a specific period, encompassing both realized gains (closed trades) and unrealized gains (open positions). As a core performance metric, it incorporates factors like entry/exit prices, trading fees, funding rates, and leverage costs, reflecting the effectiveness of trading strategies and risk management capabilities.

Remote Procedure Call (RPC) is a network communication protocol that enables a computer program to call functions on another computer without requiring developers to code network communication details. In blockchain, RPC interfaces serve as standardized methods for applications (such as wallets and DApps) to communicate with blockchain nodes, typically implemented over HTTP or WebSocket protocols using data exchange formats like JSON-RPC or gRPC.

Stablecoins are cryptocurrencies designed to maintain price stability by pegging their value to fiat currencies (like the US dollar), commodities (such as gold), or other assets. Based on their backing mechanism, stablecoins are primarily categorized as collateralized (fiat-backed or crypto-backed) or algorithmic, each employing different mechanisms to maintain price stability.

Staked ETH tokens are derivative tokens (like stETH) issued by liquid staking protocols, representing ETH deposited into Ethereum's Proof of Stake validators. They allow users to maintain liquidity while participating in network validation, as these tokens can be freely traded and utilized across DeFi applications while still accruing staking rewards from the underlying staked assets.