OpenETR
Check Bitcoin Balance
Resolve an nsec, npub, NIP-05 identifier, or a bare domain such as
example.com. The app derives the canonical Taproot p2tr address and looks up its
balance through the configured Esplora API.
Check Silent Payment Ownership
Check whether a Silent Payment address belongs to an npub or the npub resolved from a
NIP-05 identifier. Leave the Silent Payment address blank to generate and display the derived
sp1... address for that identity.