Chaincode Decoded: Bech32m - Episode 11

The Chaincode Podcast

This revisits a segment we call Chaincode Decoded. In this episode, we'll learn how to say Bech32 and also what it and Bech32m are. Enjoy!

Correction: The characters removed from the set are 1 B I O (2:20)

• Why do we need Bech32? (0:57)
• What is the distinction between Bech32 and native SegWit? (3:20)
• Why does Taproot need a new address format? (4:13)
• Bech32 length extension mutation weakness (11:20)
  - mailing list post
• Bech32m (12:25)
  - BIP350

Further resources:

• Pieter Wuille: New Address Type for SegWit Addresses (presentation)
• Sipa demo
• Bech32 adoption
• (Some of) the math behind Bech32 addresses

Thanks to Caralie for the sound engineering.