🏁Finality

The point at which a blockchain transaction cannot be reversed.

🍴Fork

A change to a blockchain protocol creating a new version of the chain.

🗄️Full Node

A node that stores the complete blockchain and validates all transactions.

⛽Gas Fee

A fee paid to execute transactions or smart contracts on a blockchain.

🎚️Gas Limit

The maximum amount of gas a user is willing to spend on a transaction.

✂️Halving

An event that cuts Bitcoin mining rewards in half every four years.

🔀Hard Fork

A permanent divergence in a blockchain requiring all nodes to upgrade.

🔐Hardware Wallet

A physical device that securely stores cryptocurrency private keys.

#️⃣Hash

A cryptographic function that produces a fixed-length fingerprint of data.

🔥Hot Wallet

A cryptocurrency wallet connected to the internet for easy access.

🔒Immutability

The property that once data is written to a blockchain it cannot be changed.

🎯Initial Coin Offering

A fundraising method where a project sells tokens to early backers.

🪪Know Your Customer

Identity verification required by regulated crypto exchanges.

🏗️Layer 2

A scaling solution built on top of a base blockchain.

🪶Light Node

A node that stores only block headers and relies on full nodes.

💧Liquidity Pool

A pool of tokens locked in a smart contract for decentralized trading.

⏳Mempool

A waiting area for unconfirmed transactions before inclusion in a block.

⛏️Miner

A participant who uses computing power to secure a blockchain.

⛏️Mining

The process of validating transactions and adding blocks to a blockchain.

🏭Minting

The process of creating new tokens or coins on a blockchain.

✍️Multisignature

A wallet requiring multiple keys to authorize a transaction.

🖥️Node

A computer that maintains a copy of the blockchain and relays transactions.

🖼️Non-Fungible Token

A unique digital asset representing ownership of a specific item.

🔢Nonce

A number used once in mining to find a valid block hash.

📖Order Book

A list of buy and sell orders for a trading pair on an exchange.

🔑Private Key

A secret cryptographic code that authorizes transactions.

🥩Proof of Stake

A consensus mechanism where validators are chosen based on staked coins.

💪Proof of Work

A consensus mechanism requiring computational effort to validate blocks.

🎭Pseudonymity

The property that blockchain users are identified by addresses, not names.

🔓Public Key

A cryptographic address used to receive cryptocurrency.