Category

Wallet and Bridge Basics

These are core self-custody and transaction concepts every on-chain user should understand.

How to recognize this theme

Terms you meet before sending funds across a chain.

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.

Seed Phrase

A seed phrase is a set of recovery words that can restore control of a crypto wallet.

Gas Fee

A gas fee is the network cost paid to execute a blockchain transaction.

Wallet

A wallet manages private keys and lets a user sign blockchain transactions.

Bridge

A bridge moves assets or messages between blockchains, usually with added smart-contract risk.