Modern Bitcoin Key Management and BIP-39
Behind the scenes, your wallet starts from a single seed and grows a tree of keys (hierarchical deterministic, or HD).
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- bip-39
Guides on the same subject
- BIP 32 Explained: Hierarchical Deterministic Wallets
BIP 32 defines HD wallets: one seed derives a tree of keys via chain codes and hardened or normal steps, and an xpub makes addresses without private keys.
- BIP 44 – Multi-Account Hierarchy for Deterministic Wallets
BIP-44 defines the m/purpose'/coin_type'/account'/change/index path, letting a seed phrase manage accounts across coins like Bitcoin and Ethereum.
- BIP 157 Client-Side Block Filtering: Compact Filters Explained
BIP 157 lets light wallets fetch compact block filters (BIP 158) from full nodes and test them locally, finding their payments without revealing addresses.
One of the documents in the Seed Phrase PDF Archive, listed on archive page 6.