A card network that partners with crypto issuers and on-ramps for card-linked spend.

An asset used to buy goods. Lightning and stablecoins compete for this role more than raw BTC for many users.

A token whose value is driven primarily by community attention rather than utility.

The single hash at the top of a Merkle tree, stored in a block header as a compact commitment to every transaction.

A binary tree of hashes that lets a verifier prove a transaction is in a block without downloading the whole block.

The most widely used EVM browser wallet, built by Consensys.

Maximal extractable value. Profit from choosing the order of transactions in a block, including arb and sandwiches.

Markets in Crypto-Assets, the EU regulation that licenses crypto issuers and service providers and sets rules for stablecoins.

A MiCA category for a crypto-asset that seeks to maintain a stable value by referencing one official currency.

A software company that became a leveraged public proxy for Bitcoin by holding a large BTC treasury.

The midpoint between best bid and ask, a common fair-value reference.

A participant in proof of work that expends energy to find a valid block nonce and collect the reward.

A service that pools and shuffles coins to hide the link between sender and receiver. Heavily sanctioned and prosecuted.

An ordered word-based encoding used in wallet recovery; BIP-39 mnemonics encode entropy and a checksum before a separate step derives the wallet seed.

A privacy coin that hides amounts and addresses with ring signatures and stealth addresses.

A state-licensed business that transmits value for customers. Many U.S. exchanges hold these licenses.

Morpho's permissionless lending-market design in which individual markets have fixed core parameters and separate accounting.

A smoothed average of recent closes, used as a trend filter rather than a forecast.

Multi-party computation custody that splits signing so no single machine holds a full key.

An early dominant Bitcoin exchange that collapsed in 2014 after a massive loss of customer BTC.