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Your extended public key (xpub, ypub, or zpub) lets Prove see your wallet’s balance without being able to spend. Copy it from your wallet app, then paste it into Prove.
A zpub or ypub already says which address type you use, so you don’t need to pick one. With an xpub, you also pick the script type.
  1. Open Sparrow and load your wallet.
  2. Select Settings in the left menu.
    Sparrow left menu with Settings selected
  3. Find the Keystore section. Your extended public key is shown there. Copy it.
    Sparrow Keystore section showing the extended public key
An extended public key reveals all your past and future addresses for that account. Share it only with apps you trust.
Next, verify it with manual signing.