Fake data, public demo keys. Never use with real bitcoin.
1 Scan the transaction
Wallet software like Sparrow builds the transaction and shows it as a QR.
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QR options
What's in this transaction?
2 Load the seed
QR options
Show the words in plain text
What is a SeedQR?
- It is your private key. Scanning it is the same as typing in every word of the seed phrase.
- Transcribe it by hand onto paper or steel, copying the grid from the device's own transcription screen.
- Never photograph it, never make one digitally. Phones and computers sync, back up and cache without asking, and a copy you didn't know about is a copy you can't destroy.
3 Load the wallet descriptor
QR options
Show the descriptor text
Read the signature back
The SeedSigner shows the signed transaction as an animated QR. Point the camera at it.
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Load a seed
You retrieve your handmade SeedQR. On the device: Seeds › Load a seed › Scan.
QR options
Show the words in plain text
What is a SeedQR?
- It is your private key. Scanning it is the same as typing in every word of the seed phrase.
- Transcribe it by hand onto paper or steel, copying the grid from the device's own transcription screen.
- Never photograph it, never make one digitally. Phones and computers sync, back up and cache without asking, and a copy you didn't know about is a copy you can't destroy.
Verify an address
On the device: Tools › Verify Address.
Scan the address
Load the seed
QR options
Show the words in plain text
Load the wallet descriptor
QR options
Show the descriptor text
Sign a message
On the device: Tools › Sign Message.