Ethereum Node Record (ENR)
An Ethereum Node Record, or ENR, is a signed data record used to describe an Ethereum network node for discovery and connection.…
Glossary terms starting with E
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Ethereum Portal Network
The Ethereum Portal Network is a set of lightweight peer-to-peer networks designed to provide decentralized access to Ethereum data without requiring every…
Ethereum Provider API (EIP-1193)
Ethereum Provider API (EIP-1193) is a minimal JavaScript interface that standardizes how applications request Ethereum RPC methods from a provider and receive…
Ethereum Request for Comments (ERC)
Ethereum Request for Comments, or ERC, refers to application-level standards proposed through Ethereum’s improvement process. ERCs define interfaces and conventions for tokens,…
Ethereum Set-Code Transaction
An Ethereum set-code transaction is the EIP-7702 transaction type that lets an externally owned account authorize persistent delegation to smart-contract code. The…
Ethereum Virtual Machine (EVM)
The Ethereum Virtual Machine, or EVM, is the deterministic execution environment that runs Ethereum smart-contract bytecode and applies transaction state changes. It…
Ethereum Wallet
An Ethereum wallet is software, hardware, or a service that manages Ethereum accounts, keys, signatures, token balances, and smart-contract interactions. A self-custodial…
Euro Stablecoin
A euro stablecoin is a digital token designed to maintain a value close to one euro. It can be backed by bank…
Euro-Backed Stablecoin
A euro-backed stablecoin is a stablecoin supported by euro-denominated cash, bank deposits, government securities, or comparable reserve assets. It is generally issued…
Event Log
An event log is a structured record emitted during smart-contract execution and stored in the transaction receipt. On EVM networks, logs contain…
Event Risk
Event risk is the possibility that a discrete occurrence causes sudden financial, operational, legal, security, or reputational loss. A score for Event…
Event Signature
An event signature is cryptographic evidence attached to an event message so recipients can verify its origin and detect modification. An event…
Exact Payment
An exact payment is a payment whose recognized amount matches the required amount under the configured currency, asset, valuation, fee, rounding, and…
Exact-Amount Payment Matching
Exact-Amount Payment Matching is a method that associates a blockchain transaction with a payment request by comparing the received amount with the…
Exception Management
Exception management is the controlled process for identifying, classifying, assigning, investigating, resolving, and learning from payment or accounting conditions that cannot complete…
Exchange API
An exchange API provides programmatic access to market data, balances, orders, trades, deposits, withdrawals, and account functions offered by an exchange. Exchange…
Exchange Liquidity
Exchange Liquidity is the executable capacity available on a particular trading venue to complete orders near prevailing prices without excessive delay or…
Exchange Rate
An exchange rate expresses the quantity of one currency or asset required to obtain a unit of another currency or asset. Operators…
Exchange Rate API
Exchange Rate API is an API interface concept that returns conversion rates between currencies or assets, often with source, timestamp, market, and…
Exchange Rate Lock
Exchange Rate Lock is an agreement or system control that fixes a currency or asset conversion rate for a defined amount and…
Exchange Rate Risk
Exchange Rate Risk is the possibility that changes in currency or asset exchange rates alter the value, cost, margin, or settlement outcome…
Exchange Token
An exchange token is a cryptoasset issued by or closely associated with a cryptocurrency exchange or trading ecosystem. It can provide fee…
Execution Address
An execution address identifies an account or contract in a blockchain's transaction-execution layer, distinct from consensus validator credentials or withdrawal keys. The…
Execution Client
An execution client is node software that validates and processes blockchain transactions, maintains execution state, runs the virtual machine, manages a transaction…