Why you sign a message, what it says, and how to finish a pending wallet.
To put a wallet on a statement, you prove you control it. You do this by signing a short message with your wallet.
Signing a message cannot move funds. It is not a transaction. Nothing is broadcast to the Bitcoin network.
Why verify
Pending wallet
Verified wallet
Balance tracked
Yes
Yes
Shown on Home and Portfolio
Yes
Yes
Can go on a statement
No
Yes
Only want to track a wallet? You can leave it pending.
What you sign
The message looks like this:
I, the owner, affirm sole control of this account. No other third-party claims/access permitted. Ownership revocable solely by me. ID=…
The ID is unique to your account. You sign with the wallet’s first receive address (path ending /0/0). For multisig, each key signs from its own Legacy (1…) address.
How to sign
You sign right after adding a wallet. To finish later, open the pending account and select Continue.
A pending account. Select Continue to sign.
Ledger and Trezor
COLDCARD (MicroSD)
COLDCARD Q and Keystone
xpub or descriptor
Select Prove Control.
Check the message and address on your device. Approve it.
Select Download to save hoseki-ownership-claim.txt. Copy it to your MicroSD card. Do not edit it.
On the COLDCARD, go to Advanced/Tools → File Management → Sign Text File. On Mk2 or Mk3: Advanced → MicroSD Card → Sign Text File. Pick the file. Press Enter.
Upload the new hoseki-ownership-claim-signed.txt. Select Prove Control.
Scan the QR code on screen with your device.
Confirm and sign on the device.
Select Ready to Scan. Hold the signed QR up to your webcam.
When it works, you see your device’s name and Verified!, such as Trezor Verified! or Coldcard Verified!, with its balance. An unknown device shows Wallet Verified! Select Generate Statement, or View and the device’s name to open the account. If you started from a statement, the button says Complete Statement.
Good to know
Verification does not expire. You sign once per wallet.
The message says “the owner”. It does not include your name. Your name on statements comes from Settings.
Multisig needs a signature from enough keys to meet your quorum. See Multisig.
Stuck waiting for the device? After 20 seconds, a link appears to reset the step.
If signing fails
Message
Fix
Couldn’t verify this account (xpub or descriptor)
Sign the exact message with the exact address shown. Paste the signature unchanged, with no extra spaces or line breaks.
Invalid signature
Ledger or Trezor: sign with the same device, passphrase, and account you added. COLDCARD Q or Keystone: the signed QR couldn’t be read. Scan it again.
The signing process did not complete successfully.
COLDCARD (MicroSD): upload the file ending -signed.txt, not the original. QR devices: sign on the device and account you added.
File not downloaded or copied
Download or copy the message file before you select Next.
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Your name on statements comes from `,_jsx(_components.a,{href:`/bitcoin-control-center/settings/app-settings`,children:`Settings`}),`.`]}),`\n`,_jsxs(_components.li,{children:[_jsx(_components.strong,{children:`Multisig`}),` needs a signature from enough keys to meet your quorum. 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