Glossary Terms Starting with T

Transaction Data Availability

Transaction data availability means the information needed to reconstruct and verify transactions or state transitions is accessible to network participants. Blockchains may…

Transaction Dependency

A transaction dependency exists when one transaction's validity, inputs, ordering, or result relies on another transaction or state change. Dependencies constrain mempool…

Transaction Envelope

A transaction envelope is an outer protocol structure that identifies a transaction format and contains or frames the fields needed for decoding,…

Transaction Event

A transaction event is a structured record emitted during transaction execution to describe an application-relevant occurrence, such as a token transfer, order…

Transaction Execution

Transaction execution is the process by which a blockchain applies a valid transaction to current state under protocol and smart-contract rules. Execution…

Transaction Explorer

A transaction explorer is a web or application interface that displays details about a blockchain transaction, such as status, sender, recipient, amount,…

Transaction Fee

A transaction fee is the amount paid to have a blockchain transaction processed, relayed, ordered, executed, or included. It compensates miners, validators,…

Transaction Finality

Transaction finality is the point at which a blockchain transaction is considered sufficiently irreversible under the network’s consensus rules and the application’s…

Transaction Finality Risk

Transaction finality risk is the possibility that a transaction treated as settled is later removed, replaced, reversed through protocol or governance action,…

Transaction Frequency

Transaction frequency is how often transactions occur for a network, account, customer, asset, merchant, or application during a defined period. It can…

Transaction Hash

A transaction hash is a cryptographic digest used to identify a specific serialized blockchain transaction. It is commonly displayed as a long…

Transaction Header

A transaction header is the portion of a transaction format that carries identifying, versioning, routing, or authorization-related metadata separate from the main…

Transaction ID (TxID)

A transaction ID is an identifier used to reference a blockchain or payment transaction. In many blockchain systems it is the transaction…

Transaction Inclusion

Transaction inclusion occurs when a block producer places a transaction in a block that the network accepts under its consensus and validity…

Transaction Input

A transaction input is data that identifies the value, account authority, or prior output consumed by a blockchain transaction. In UTXO networks,…

Transaction Latency

Transaction latency is the elapsed time between defined stages of a transaction lifecycle, such as creation, broadcast, node acceptance, block inclusion, execution,…

Transaction Limit

A transaction limit is a rule that restricts the amount, frequency, count, asset, destination, or cumulative value of transactions within a defined…

Transaction Matching

Transaction matching links records from different systems that describe the same underlying transaction. It uses identifiers and supporting attributes such as amount,…

Transaction Monitoring

Transaction monitoring continuously observes transaction activity, state transitions, performance, and risk indicators to detect failures, delays, unusual behavior, control breaches, or items…

Transaction Nonce

A transaction nonce is a value used to make a transaction unique, prevent replay, or enforce ordering within a defined account or…

Transaction Ordering

Transaction ordering is the protocol and producer process that determines the sequence in which valid transactions execute and affect shared state. Order…

Transaction Output

A transaction output is a destination and value created by a blockchain transaction. In UTXO networks, outputs become independently spendable records that…

Transaction Payload

A transaction payload is the data that expresses what a transaction is intended to do. It may contain transfer details, contract call…

Transaction Pinning

Transaction pinning is an attack that exploits mempool or replacement rules to keep a desired transaction package from confirming or being fee-bumped.…