The Dictionary
Explore 227+ clear, technical, and objective definitions defining the decentralized future.
Recently Defined
Bear Market
A bear market is a prolonged period in which prices trend downward and market confidence weakens. In crypto, bear markets are often marked by lower highs, lower lows, reduced trading activity, and widespread caution.
Bid Price
The highest price a buyer is willing to pay right now (buy side of the order book).
Bitcoin ETF
This is an exchange-traded fund that follows the price of Bitcoin.
Blob Space (EIP-4844)
Blob space refers to the temporary data storage area introduced to Ethereum by EIP-4844 (proto-danksharding), where rollups post compressed transaction data ("blobs") that are available for about 18 days and then pruned. It is a separate fee market from regular gas.
Block
A block is a collection of validated transactions added to a blockchain.
Block Explorer
A block explorer is a tool or website that lets users search and view blockchain data, including wallet addresses, transactions, token contracts, blocks, and network activity.
Block Height
Block height is the number assigned to a block based on its position in the blockchain.
Blockchain
A blockchain is a decentralized digital ledger that records transactions in blocks, links those blocks together, and makes the record difficult to alter.
Bonding Curve
A bonding curve is a mathematical formula that prices a token based on its circulating supply — the more tokens minted, the higher the price; the more burned/redeemed, the lower. The curve is enforced by a smart contract that acts as a permanent automated market maker against a reserve asset.
Bracket Order
An advanced order that attaches a take-profit (limit) and stop-loss (stop or stop-limit) to an entry order automatically.
BRC-20
BRC-20 is an experimental token standard for issuing fungible tokens on the Bitcoin blockchain using the Ordinals protocol. It inscribes JSON-formatted text into individual satoshis to define token deployments, mints, and transfers.
Breakout
A breakout occurs when price moves above resistance or below support with increased volume.
Bridge
A bridge moves crypto assets from one blockchain to another.
BTCfi (Bitcoin DeFi)
BTCfi is the broad category of decentralized finance applications built directly on or around Bitcoin — including Bitcoin Layer 2s, restaking protocols, lending markets, and DEXes that use BTC (not wrapped versions on other chains) as their primary asset.
Bull Market
A bull market is a period of rising prices, strong optimism, and growing confidence across the market. In crypto, bull markets often include powerful momentum, new highs, strong retail interest, and expanding trading volumes.
Bullish and Bearish
Bullish = expecting price to rise; Bearish = expecting price to fall.
Candlestick
A candlestick is a chart representation showing open, high, low, and close prices for a time period.
Centralized Exchange (CEX)
A company-run platform (e.g., Binance, Coinbase) where users trade cryptocurrencies, often with fiat on-ramps, custody of funds, and user accounts.
Chain Abstraction
Chain abstraction is a design goal where users interact with crypto applications without needing to know, or manually switch to, the specific blockchain hosting the asset or app. Wallets, intents, and middleware handle bridging, gas, and routing in the background.
Chart Timeframe
The time interval each candle or bar represents on the price chart (1m, 5m, 1H, 1D, etc.).