Oracle Data

These words describe how blockchain systems pull, validate, and time external data.

How to recognize this theme

Terms you see when smart contracts need off-chain information.

In a daily board, this category groups terms by their shared role. Look for four cards that describe the same mechanism, risk area, or workflow rather than four words that merely sound similar.

Educational context

These entries are vocabulary notes for learning. They are not project endorsements, token recommendations, exchange rankings, or trading signals.

Oracle

An oracle is a service that supplies outside information to a blockchain application.

Price Feed

A price feed is a data stream that publishes asset prices for apps and smart contracts.

TWAP

TWAP means time-weighted average price, a method that smooths out short-term spikes.

Attestation

An attestation is a signed statement that a piece of data or state is valid.