Episode notes
In this episode of the Van Wirdum Sjorsnado, Sjors and Aaron explain what an xpub is and how it is used by Bitcoin wallets.
Helpful Links:
http://rosenbaum.se/book/grokking-bitcoin-4.html#_hierarchical_deterministic_wallets
https://walletsrecovery.org
Chapters
00:00:00 The xpub controversy
00:03:08 Random wallet keys and the backup problem
00:04:51 BIP32 and deterministic master keys
00:06:52 Child keys, accounts and derivation paths
00:08:58 What an xpub reveals to a wallet server
00:11:10 Gap limits and missing wallet history
00:16:04 The lasting privacy cost of sharing xpubs
00:17:19 Seed words and BIP39 usability
00:20:55 Changing standards while preserving old backups
00:22:12 Wallet recovery needs derivation information too
Support the Show!
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Follow Aaron van Wirdum @AaronvanW
Follow Sjors Provoost @provoost
Music:
Song Title: Segwit Sounds
By: The NakamoTones
Album: Citadel Music
Produced by: Bitcoin Audio
