Reported trading volume over the last 24 hours, used to rank venues and assets by activity.

When one party controls enough hashpower or stake to rewrite recent blocks and double-spend.

Eric Hughes's 1993 statement advocating privacy through cryptography, anonymous transactions, and the development of practical software.

A leading overcollateralized lending protocol with isolation modes, flash loans, and many-chain deployments.

A version of Aave's lending protocol with configurable collateral and borrowing controls, including efficiency and isolation features.

An Application Binary Interface describes how software encodes contract calls and decodes results, events, and errors.

Making account authorization and behavior programmable, enabling features such as alternative authentication, recovery policies, batching, and sponsored execution.

A ledger design that stores a balance and nonce per address, used by Ethereum and many smart-contract chains.

A U.S. wealth or income test that gates many private crypto and RWA offerings.

U.S. Automated Clearing House batch payments, cheaper and slower than wires.

The risk that the other side only hits your quote when they know more than you.

A signing device that never touches the internet, used with QR or SD transaction flows.

The trading firm affiliated with FTX, at the center of the 2022 collapse.

A pure proof-of-stake chain known for instant finality and institutional tokenization experiments.

Addresses permitted to mint or trade early. Also a phishing lure word in fake mint sites.

Anti-money-laundering controls: monitoring, reporting, and blocking illicit flows.

A federally chartered U.S. crypto bank and custodian.

A venture firm whose crypto funds back many Layer 1s, DeFi protocols, and consumer apps.

A personal code shown in legitimate exchange emails so fakes are easier to spot.

Annual percentage rate. Simple yearly return without compounding.

Annual percentage yield. Yearly return assuming rewards are compounded.

Buying and selling the same risk in two venues to lock a price gap, which helps markets stay aligned.

An Ethereum scaling ecosystem whose Nitro software powers optimistic rollups, including Arbitrum One, with transaction execution off Ethereum and dispute resolution on the parent chain.

Cathie Wood's firm, partner on ARKB, a spot Bitcoin ETF.

Key pairs where the public key verifies what only the private key can sign or decrypt.

Both legs of an exchange succeed or fail together, reducing Herstatt risk.

An Alternative Trading System, a U.S. SEC-registered venue that can match securities without being a full national exchange.

A time-boxed review of contract code. It reduces risk. It does not eliminate it.

A pool formula that prices trades from balances instead of a human order book. Constant-product is the classic form.

A proof-of-stake platform with multiple subnets and an EVM-compatible C-Chain.

Play-to-earn game whose scholarship economy boomed then busted; its Ronin bridge was later hacked.

When futures trade below spot. Short-dated contracts are richer to hold than far ones.

Debt that remains after collateral is sold, socialized onto a protocol, insurance fund, or other users.

Someone still holding a large losing position after a collapse.

An automated market maker protocol that separates shared token accounting from pool-specific pricing, including weighted pools with configurable asset proportions and other specialized pool designs.

An international institution supporting central-bank cooperation, monetary and financial stability, research, and banking services for central banks.

A rush to redeem a stablecoin, ETF, or lending product faster than the issuer can sell reserves.

The U.S. anti-money-laundering statute that requires financial institutions, including many crypto platforms, to know customers and file reports.

An Ethereum Layer 2 network with EVM-compatible execution, ETH-denominated gas, and settlement mechanisms that distinguish rapid local confirmations from Ethereum finality and bridge withdrawals.

The 2021 Christie's sale of Beeple's Everydays collage that mainstreamed NFT price headlines.

How tightly an asset moves with a benchmark, often Bitcoin, used as a rough risk factor.

The gap between the highest bid and the lowest ask. A wide spread is a hidden trading cost.

The world's largest centralized crypto exchange by volume, with a spot book, derivatives, and a large listing machine.

Hierarchical deterministic wallets. One seed derives a tree of keys so backups stay simple.

The Bitcoin specification for a particular Schnorr signature scheme over secp256k1, used with Taproot spending.

The word-list standard for mnemonic seeds used by most wallets.

A derivation-path convention so the same seed can produce keys for many coins in a predictable tree.

The first and largest cryptocurrency. A proof-of-work UTXO chain with a 21 million supply cap, used as digital collateral and a settlement asset.

A proof-of-work cryptocurrency and payment network that split from Bitcoin in August 2017, emphasizing greater transaction capacity on the base chain.

A temporary Bitcoin consensus split caused by differing block-handling behavior between software versions, documented in BIP-50.

An August 2010 Bitcoin validation bug that allowed an invalidly large output total, followed by a software fix and a chain reorganization.

A high-profile lending and trading scam that collapsed in 2018 after promising impossible yields.

A crypto exchange historically tied to Tether's early distribution and to large professional spot flow.

Theft of about 120,000 BTC from Bitfinex. Later U.S. seizures of related coins became a landmark recovery story.

A digital asset infrastructure company offering wallet, custody, and related institutional services through different products and legal entities.

New York's state license for virtual-currency businesses, among the earliest U.S. crypto licensing regimes.

One of the oldest surviving euro-friendly centralized exchanges.

An attacker who exploits for profit or disruption without disclosure.

The world's largest asset manager and issuer of IBIT, a leading spot Bitcoin ETF.

A batch of transactions plus a header that links to the previous block by hash.

Jack Dorsey's company behind Cash App, Square, and Bitcoin mining and protocol investments.

The number of blocks from genesis to the current tip. A simple way to talk about chain progress.

The target or observed interval between blocks on a network.

An append-only distributed ledger where blocks of transactions are cryptographically linked and validated by a network of nodes.

Bitcoin infrastructure company known for Liquid, mining, and satellite broadcast experiments.

The Lightning specification for encoding payment requests as signed invoices with fields such as amount, payment hash, description, and expiry.

Yuga Labs' ape PFPs that became the 2021 status NFT, then a symbol of NFT-winter drawdowns.

Taking a loan against locked collateral. Interest accrues until you repay or get liquidated.

A grouping of major emerging economies (Brazil, Russia, India, China, South Africa, and newer members) that discusses trade, development banks, and alternatives to dollar rails.

A proposed cross-border payment framework among BRICS members, discussed as a complement to SWIFT rather than a live global rail.

A U.S. firm licensed to effect securities transactions for customers or for its own account.

A public reward for reporting vulnerabilities before they are exploited.

Paid responsible disclosure for vulnerabilities, often via Immunefi in crypto.

Community language encouraging people to build and improve crypto products, tools, and infrastructure; distinct from the BUIDL name used by a tokenized fund.

A derivatives-heavy centralized exchange known for perpetual futures.

The compiled form of a contract that the virtual machine actually runs.

The ability of a network to keep a single honest history even if some nodes lie or go offline.

A chart bar that shows open, high, low, and close. The body is the open-close range.

Learn open, high, low, close before trusting any indicator overlay.

A privacy-oriented network of sync domains aimed at institutional tokenized assets and workflows.

State limits on moving money across borders. Crypto is often used to route around them, with legal risk.

A research-driven proof-of-stake chain using Ouroboros, with a UTXO-style extended accounting model.

Former Alameda CEO whose testimony was central to the FTX criminal cases.

Return from funding, staking, or basis while holding a hedged book, as opposed to betting on price.

A central bank digital currency. A digital liability of the central bank, not a commercial-bank deposit and not Bitcoin.

A CeFi lender that froze withdrawals in 2022 and entered bankruptcy after risky yield strategies.

A company-run venue that holds custody, matches orders, and lists pairs. Users deposit to the exchange wallet.

The U.S. Commodity Futures Trading Commission, which oversees commodity derivatives and has treated Bitcoin and ether as commodities.

A numerical identifier included in supported blockchain signatures to distinguish the network on which an authorization is intended to work.

A blockchain analytics firm used by exchanges and governments for compliance and investigations.