An electronic signature, or e-signature, is any electronic mark (sign, sound, symbol, etc.) used in the palace of a physical signature in signing a document or contract.

Economic Utility

Economic utility is a term in economics that refers to the total satisfaction that a person can derive from consuming a good or service.

Edge Nodes

In computer science, an edge node is a computer that serves as an end-user gateway to form a connection with other nodes.

Effective Proof-of-Stake

Effective Proof-of-Stake is Harmony’s version of the Proof-of-Stake consensus mechanism that aims for both security and decentralization.

Electrum Wallet

A Bitcoin wallet for Windows, Mac and Linux with a simple interface.


Short for “explain like I’m five” — a plea for simplicity when crypto concepts are being explained.

Elliott Waves

The Elliott Wave Theory is an essential tool for many stock and crypto market traders.

EMA (Exponential Moving Average)

Exponential moving average (EMA) is a technical indicator that highlights the recent price changes and data points of an asset/stock/cryptocurrency while keeping the older chart observations intact.

Email Spoofing

Email spoofing is a technique that is used in order to trick users into thinking that a message actually came from a different person.


The speed at which new coins are produced and released.


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