Iceberg Order

A conditional order to buy or sell a large number of assets in smaller, predefined quantities in order to disguise the total order quantity is known as an "Iceberg Order."

Fiat

Fiat money, often known as fiat currency, is money that a government has recognized as legal tender and that it supports.

DeFi

a movement promoting substitutes for conventional, centralized financial services.

Candidate Block

In a few words, a candidate block is a block that a mining node (miner) is trying to mine in order to receive the block reward. So a candidate block may be described as a temporary block that will be either validated or discarded by the network. Miners compete with each other to validate the next block and add it to the blockchain, but first, they have to create a candidate block to participate in the mining competition.