Insights on Crypto Payments, Infrastructure, and Operations

Glossary terms starting with E

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E-commerce

E-commerce is the buying and selling of goods, services, or digital access through websites, apps, marketplaces, or other connected channels. It includes…

E-commerce Crypto Payment

An e-commerce crypto payment is a cryptocurrency or digital-asset payment made for an online order. It links a digital checkout and customer…

E-commerce Merchant

An e-commerce merchant is a business or seller that offers goods, services, subscriptions, or digital access through online channels and accepts customer…

E-commerce Platform

An e-commerce platform is software used to build and operate online selling experiences, commonly including product catalogs, prices, carts, checkout, orders, customers,…

Early Crypto Payment

Early Crypto Payment is a crypto payment received before the expected invoice date, service period, order milestone, or scheduled obligation. It is…

ECDSA Signature

An ECDSA signature is a digital signature created with an elliptic-curve private key to authenticate data and prove its integrity. An ECDSA…

Eclipse Attack

Eclipse Attack is an attack or weakness pattern that isolates a blockchain node from honest peers so an attacker can control the…

Economic Finality

Economic finality is the degree of confidence that reversing a block would require an attacker or validator set to incur a clearly…

Economic Payment Finality

Economic Payment Finality is the point at which reversing a payment is considered economically impractical because the cost, penalties, or coordination required…

Economic Sanctions

Economic Sanctions are government-imposed restrictions used to influence conduct by limiting transactions, trade, services, investment, access to property, or dealings with specified…

Economic Security

Economic security is the resilience of an economy, organization, protocol, or person against financial disruption, coercion, instability, and resource loss. Economic security…

Ecosystem Token

An ecosystem token is a digital asset used across a group of related products, applications, networks, communities, or services rather than within…

EdDSA Signature

An EdDSA signature is an elliptic-curve digital signature created with the Edwards-curve Digital Signature Algorithm for authentication and integrity verification. An EdDSA…

Education Crypto Payment

Education Crypto Payment is a cryptocurrency payment for tuition, courses, training, educational content, certifications, or related services. The term identifies a business…

Effective Spread

Effective Spread is an execution-cost measure that compares the actual trade price with the prevailing midpoint of the bid and ask quotes,…

Effective Throughput

Effective throughput is the rate of useful, successfully completed blockchain work delivered to users or applications after accounting for failed transactions, retries,…

EIP-1559

EIP-1559 is the Ethereum protocol proposal that introduced a dynamically adjusted base fee, elastic block capacity around a target, and a transaction…

EIP-4844

EIP-4844 is the Ethereum upgrade proposal that introduced blob-carrying transactions and a separate data-availability fee market for rollups. Blob data is temporarily…

EIP-712 Typed Data

EIP-712 Typed Data is an Ethereum standard for hashing and signing structured data with explicit types and domain information so wallets can…

EIP-712 Typed Data Signing

EIP-712 standardizes hashing and signing typed structured data so wallets can present meaningful fields instead of opaque byte strings. Readable signing improves…

Electronic Money Token (EMT)

An Electronic Money Token, or EMT, is the European Union MiCA category for a cryptoasset designed to maintain a stable value by…

Electronic Payment

An electronic payment transfers payment instructions or value through digital systems rather than physical cash or a paper instrument. It includes card…

Embedded Checkout

Embedded checkout is a checkout or payment interface presented inside the merchant’s website or app while core components or processing are provided…

Embedded Crypto Invoice

An embedded crypto invoice is a payment interface presented inside the merchant's website or application rather than on a separately hosted page.…