In January 2021, Blockstream took the Bitcoin world by surprise by announcing the Jade hardware wallet – a powerful and inexpensive device. In this episode, Blockstream Chief Architect Lawrence Nahum explains how Jade works and what it aims to accomplish.

This episode is sponsored by Vaultoro and Blockstream.

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Time stamps:

00:00 – Intro

03:38 – Why did Blockstream join the hardware market?

05:46 – Blockstream’s version of the anti-klepto, anti-Exfil

06:46 – How Jade can fix the multisig user experience

08:45 – Wait, isn’t Jade a green stone?

09:37 – Bitcoin wallets and colors

10:10 – How does Jade work with Wasabi and Electrum?

11:39 – Do Jade’s QR code scanning and bluetooth connectivity make it a mobile-specific hardware wallet?

12:40 – Making Jade work as a stand-alone device

13:46 – Air-gapping and false promises by other hardware wallet manufacturers

15:54 – Jade vs Trezor, Ledger, and BitBox02

22:55 – Does Blockstream have a bounty policy for responsible security disclosures for the Jade hardware wallet?

24:44 – Building your own Jade from the open sourced specifications

25:59 – What was the reception like for the Jade? Have any experts tried to hack into the Jade?

28:37 – Tropic Square and open source security chips for hardware wallets

31:10 – Buying a hardware wallet vs building your own from general-purpose parts

35:32 – Does PSBT make your coins more secure? Will Blockstream’s Jade add PSBT?

37:08 – How can you protect your privacy when ordering a hardware wallet?

43:38 – Multisig vs Shamir Secret Sharing

49:27 – When do you know that you need a multisig?

52:39 – What’s next for Blockstream?

53:45 – What’s the next Jade update going to include?

57:09 – Lawrence Nahum’s ideas to integrate Jade with Lightning and JoinMarket

1:00:30 – Shitcoins lying about their contributions to computer science and how newbies fall for it

1:03:00 – Promoting shitcoins is bad

1:04:21 – Bitcoin sidechains integrating interesting ideas from shitcoins (Drivechain, RSK)

1:06:58 – The tradeoffs involved when using sidechains

1:08:10 – When will Jade production meet its demand?

1:08:55 – What is the service life of the wallet?

1:11:46 – The Jade roadmap, revisited

1:15:06 – Can you use Jade for multisig in a quorum?

1:16:20 – Wen Reckless Review?

1:19:20 – Lawrence Nahum also created ABCore

1:20:59 – Why is Lawrence’s wallet called GreenAddress?

1:25:00 – Lawrence Nahum consulted HTC for the Exodus 1s full node phone

1:27:53 – How Lawrence Nahum came up with ABCore after receiving an Android TV accessory

1:30:13 – #BringBackRecklessReview #BuyUdiAMicrophone