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An introduction to self-custody, how keys are generated and stored, BIP-39/44 derivation standards, and the mathematics behind private and public keys. Whoever holds your keys controls your assets, so keeping them safe is your responsibility.
Test how non-custodial protocols initialize security parameters. This demo runs in your browser and generates sample word sequences; it does not create a real wallet.
Centralized exchanges (CEX) offer liquidity and fiat on-ramps for active trading. Self-custody gives you direct control of your keys, and with it sole responsibility for keeping them safe. Many holders use a mix of both.
A non-custodial wallet lets you sign transactions yourself, so the provider does not hold your keys. If you lose your seed phrase, nobody can recover your funds. Never share your seed phrase or private keys with anyone, and be wary of any site or app that asks for them.
With self-custody, assets stay on-chain and only the holder of the keys can authorize transfers. Mistakes generally cannot be reversed.
Transactions settle on public blockchains. Smart contracts and bridges carry their own risks, so review them before you use them.
A hardware wallet, such as Ledger or Trezor, keeps your private keys on a dedicated device, which can reduce exposure to malware on your computer or phone. It does not remove every risk, and you remain responsible for backing up your recovery phrase.
Advance to Module 2 to learn how early-stage Web3 presales, smart contract audit reports, liquidity locks and vesting schedules work.