Glossary Terms Starting with B

Blacklistable Token

A blacklistable token is a digital token whose contract or issuer can restrict specified addresses from transferring, receiving, redeeming, or otherwise using…

Blacklisted-Token Payment

Blacklisted-Token Payment is a payment involving a token that a platform, issuer, compliance provider, custodian, or merchant has classified as prohibited or…

Blind Signature

A blind signature is a digital signature created on a message whose content is hidden from the signer during signing. The requester…

Blind Signature Risk

Blind Signature Risk is a measurable uncertainty or exposure that arises when privacy-preserving signing prevents the signer from seeing the message, enabling…

Blind Signing

Blind Signing is signing cryptographic data without being able to verify a complete, reliable, human-readable description of the intended transaction or message.…

Blob Gas

Blob gas is Ethereum's separate metering unit for data blobs, with its own usage target and dynamically adjusted base fee. The blob…

Blob Transaction

A blob transaction is an Ethereum transaction type introduced by EIP-4844 that carries commitments to temporary data blobs used mainly by rollups…

Blob-Carrying Transaction

A blob-carrying transaction is an Ethereum transaction type that references temporary data blobs and their cryptographic commitments for rollup data publication. EVM…

Block

A block is a protocol-defined data structure that groups transactions and other consensus data into an ordered unit accepted by a blockchain…

Block Auction

A block auction is a market process in which builders or searchers compete for the right to supply a valuable block proposal.…

Block Body

The block body contains the transactions and other consensus-defined payloads associated with a blockchain block, separate from its compact header. The header…

Block Builder

A block builder is an entity or software component that assembles candidate block contents, typically selecting and ordering transactions to maximize value…

Block Building

Block building is the process of selecting, ordering, and packaging transactions and protocol operations into a candidate block for proposal. Some networks…

Block Capacity

Block capacity is the maximum amount of transaction data or computation a blockchain permits in a block, expressed through limits such as…

Block Commitment

A block commitment is a cryptographic value in a block or related consensus object that binds the block to specific data, such…

Block Confirmation

A block confirmation is evidence that a block has been accepted into the chain selected by the network or node, often strengthened…

Block Data

Block data is the complete protocol-defined information associated with a block, including header fields, payloads, commitments, and derived execution results. Not every…

Block Difficulty

Block difficulty expresses how hard a proof-of-work block was to mine relative to a defined target or reference level. Difficulty is not…

Block Engine

A block engine is specialized infrastructure that receives transaction bundles, evaluates ordering opportunities, and connects searchers with block builders or validators. Implementations…

Block Explorer

A block explorer is a search and analytics interface that indexes blockchain data and lets users inspect blocks, transactions, addresses, contracts, tokens,…

Block Fee Revenue

Block fee revenue is the portion of transaction fees earned by a block producer, validator, miner, sequencer, or protocol because transactions were…

Block Filter

A block filter is a compact probabilistic summary that lets lightweight clients test whether a block may contain relevant script data. Filters…

Block Finality

Block finality is the level of assurance that an accepted block will not be removed or replaced by a competing chain. Finality…

Block Hash

A block hash is a cryptographic digest used to identify a block or its header and to link it to other protocol…