Crypto//HD Wallet

- Hierarchical Deterministic: one master seed → infinite key pairs in a reproducible tree.

Hierarchical Deterministic: one master seed → infinite key pairs in a reproducible tree.

Advantage over keystore files: one backup (the seed phrase) recovers ALL accounts.

Deterministic means the same seed always produces the same sequence of accounts — math, not randomness.

Cross-wallet compatible: same seed phrase in Metamask and Trust Wallet → same accounts, same balances.

After restore, only Account 1 shows — user must "Add Account" to re-derive the others in order.