Andrew Chow, Bitcoin Core developer at Blockstream joins me in this episode to talk about his work on HWI - Hardware Wallet Interface and PSBT - Partially Signed Bitcoin Transactions. We discuss the benefits of PSBT and Hardware Wallet Interface in making Bitcoin’s user interface better for users who want to do multi sig or interact with hardware wallets using Bitcoin Core.
We talk:
Andrew’s background
Why PSBT (Partially Signed Bitcoin Transactions) is needed
HWI - Hardware Wallet Interface
Output descriptors
Derivation paths
Use of PSBT for CoinJoining and Multi-Sig
Where HWI is going from here
Andrew Chow Links and other links discussed in episode:
Andrew Chow Twitter: https://twitter.com/achow101)
Andrew’s Stack Exchange account: https://bitcoin.stackexchange.com/users/48884/andrew-chow)
Andrew Chow Twitch: https://www.twitch.tv/achow101)
Bitcoin-Core HWI github link: https://github.com/bitcoin-core/HWI)
PSBT: https://github.com/bitcoin/bitcoin/blob/master/doc/psbt.md)
Stack Exchange - Pieter Wuille answer on output descriptors: https://bitcoin.stackexchange.com/a/89281)
Output descriptors link: https://github.com/bitcoin/bitcoin/blob/master/doc/descriptors.md)
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