Bitcoin Glossary

A string of letters and numbers that represents a destination for a Bitcoin payment.

Example: 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa

Any cryptocurrency other than Bitcoin. The term combines 'alternative' and 'coin'.

A group of Bitcoin transactions collected into a single unit and added to the blockchain.

A public, distributed ledger of all Bitcoin transactions, organized into blocks.

A method of storing Bitcoin offline, away from internet-connected devices for enhanced security.

The process of including a transaction in a block, making it part of the blockchain.

A digital or virtual currency that uses cryptography for security and operates on a decentralized network.

A measure of how hard it is to find a new block in the Bitcoin network.

A potential flaw in digital cash systems where the same digital token can be spent more than once.

A change in the Bitcoin protocol that creates two different versions of the blockchain.

A physical device designed to securely store private keys offline.

The speed at which a computer can complete operations in the Bitcoin code.

A cryptocurrency wallet that is connected to the internet for easy access.

A second-layer solution built on top of Bitcoin that enables fast, low-cost transactions.

A collection of all unconfirmed transactions waiting to be included in a block.

The process of adding new transactions to the Bitcoin blockchain by solving complex mathematical problems.

A computer that maintains a copy of the Bitcoin blockchain and helps validate transactions.

A secret number that allows you to spend Bitcoin from a specific wallet.

A cryptographic key that can be shared publicly and is used to receive Bitcoin.

The smallest unit of Bitcoin, equal to 0.00000001 BTC. Named after Bitcoin's creator, Satoshi Nakamoto.

A series of 12-24 words used to recover a cryptocurrency wallet.

A transfer of Bitcoin value from one address to another.

A software program or hardware device that stores private keys and allows you to send and receive Bitcoin.

An individual or entity that holds a large amount of Bitcoin, capable of influencing market prices.