Topic

Fundamentals

What a wallet actually holds, where an address comes from, why gas moves. No procedures in this group — only the ideas every later step depends on.

• What a Web3 wallet actually is: keys, not cash The coins stay on the chain. The wallet holds the key that moves them.
• Web3 wallet vs exchange account: what actually differs A platform keeping books for you, versus holding the key yourself. Eight dimensions compared, including what self-custody costs.
• Private key, public key, address: how the three relate A one-way chain: key derives public key derives address, and it does not run backwards.
• Seed phrases and private keys: the one thing you must understand Not a password, and no recovery. Exposure routes listed by what you actually do: photos, cloud sync, keyboards, messaging yourself.
• What happens when a seed phrase is lost Usually it is permanent. Why there is no recovery, and what a backup has to satisfy to count.
• Gas fees: who gets paid, and why the price moves Where the money goes, why it swings, and why tokens can sit in a wallet you cannot move.
• What a chain is, and what happens when you pick the wrong one The same address is valid on several chains, which is exactly why nothing stops you.