Exploring the Blockstream Jade QR Scan
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- Опубліковано 31 лип 2024
- When Jade initially came out, we promised camera functionality was to come, and well, the wait is officially over. The Jade hardware wallet now has full air-gap capabilities using QR Scan, meaning you can send and receive bitcoin without a USB or Bluetooth connection, and instead communicate with your companion wallet using Jade’s camera and QR codes. In today’s video we go over every one of these new features and walk you through each action.
0:00 Introduction
1:08 QR Scan
3:25 Upgrade Jade
4:56 Access QR Scan
6:10 Pros and Cons of SeedQR and QR Pin Unlock
7:37 Setting Up SeedQR
14:48 Overview of QR Process
18:09 Sending transactions with QR Scan
19:20 Sending transactions from Nunchuk with Jade to Blockstream Green
22:32 Summary
Blockstream Jade: store.blockstream.com/product...
Jade Upgrade Page: jadefw.blockstream.com/upgrad...
QR Templates: help.blockstream.com/hc/en-us...
Wallets that work with QR Scan: help.blockstream.com/hc/en-us...
Nunchuk: nunchuk.io/
Green Wallet: blockstream.com/green/ - Наука та технологія
Whoever is the graphics guy is my hero
Very informative!!! Been recommending these to everyone I know with BTC and needed to figure out all the featuers cuz this thing is very cool but I don't know everything about the new features yet. Thank you for this!
I am not at ease with that QR pin unlock. How do I know my seed is not leaked through the process ? My passport HW does not need that 4-steps scans with internet for example, I just need to enter my PIN code and then I am ready to sign. Other point is: How do I get to my wallet if internet is unavailable or jade webpage is gone ?
You can read the QRs using BC-UR to see exactly what data is being transferred. And no need to use QR PIN if you don't want to, can scan a SeedQR instead. If the QR PIN webpage is unavailable you can scan a SeedQR, run the webpage yourself (its open source), or manually enter your recovery phrase on Jade
Question...the Xpub key that gets exported to Nunchuck...it is represented by the 12/24 words the Jade gives you when you set up the wallet. Does that only allow for 1 receive address?
Example: I export my xpub key as shown in the video. I use Nunchuck to give me multiple receive addresses over a few weeks time (as recommended in general). If I restore my wallet using the 12/24 words do I regain all of the receive addresses based on the xpub key from the Jade device? If not...what exactly does the 12/24 words represent?
I ask because I am not sure if the 12/24 words represent a single private key/public key combo (which is what I believe is the case) or if any receive addresses based on the xpub key would be recoverable.
Yep, your 12/24 words have the ability to generate all of your addresses. They do not represent a single key pair
does the qr scan camera work when jade is connected via usb to the pc? Or do you need to use the pc webcam to scan the qr instead?
You can access the camera inside any Jade session, regardless of connection type
Can i skip the QR Pin unlock setup? Will it go to the next step of setting up seedqr? if this is done, i.e. Seed QR is setup. If i reboot my Jade, can i still choose Bluetooth mode interaction instead of QR interaction? Will Jade bring me to the Bluetooth paring? if yes and assuming it's done. Now I have both options of interactions with Bluetooth and SeedQR and I am still using one wallet address?? Am I right? Pls advise. thanks!
Set a PIN with Bluetooth if you want a PIN, then next time you can choose PIN unlock with Bluetooth or SeedQR
If i have a wallet that i use via bluetooth, can i start using scanqr with the same wallet? Or do i need to create a new wallet for scanqr? Thanks
You can switch between Bluetooth and QR! Just select QR Mode after booting up Jade
If you turn on a fresh Jade, you get the setup screen where you can either initialize it or go to advanced and you're given 3 options. First you have the Power-off timeout, recovery phrase login, and exit to bring you back to the setup page with initialize and advanced again is my guess. If you were to choose the advanced area and select "recovery phrase login" would you be able to also choose the 12/24 word backup along with turning it into a QR you can export? If so, I'm assuming you wouldn't be able to use the PIN login anymore due to not initializing it and you would only ever be able to access the wallet via scanning that QR (for quickness) or inputting the seed each time correct? If I'm understanding correctly, using that recovery phrase method will forget the wallet each time the Jade is turned off and when it's turned back on again it will make it seem like it's never been setup and you'll have to go back through Recovery Phrase Login, and either input the 12/24 words, or scan the QR you exported. All of this is assuming you get the option to create the 12/24 word seed and export it into a QR before ever hitting "initiate", or does this only allow for usb/bluetooth transactions solely? My hope is you can because it almost adds another layer of security because if anyone ever gets their hands on the Jade itself, it will seem like it's never been setup due to always needing to go through the advanced section on startup. I got a little confused in the section on the website because it mentions how it's necessary in airgap situations and stating to not create a QR of your recovery on a device that will ever be online. The last step is what threw me off a bit because the only options in the thread at to connect via usb/bluetooth which would make them online, or connecting for fireware upgrades too, or am I mistaken?
You are correct that you can create a recovery phrase and a SeedQR, but never finish initialization. You can then use Recovery Phrase Login to use your Jade and it will look like it's never been touched
Hello, why isn’t this implemented on Blockstream green?
On the way!
Is green not setup for qr mode? Why is there only one example vid using nunchuk? Also can you use one jade to generate more than one qr seed/wallet?
Green will be adding this functionality later - and yes you can make as many wallets as you would like
Isn't it a security risk to have your QR seed on the website @ minute 13?
That's not your seed phrase, it's encrypted data to communicate with the blind oracle
I think you forgot to show us how pin qr lock works
It's the same process shown during initialization where you visit the webpage
This is awesome .. getting on .. heard about you from simplybtc