A wallet should work with all hardware, and vice versa.

Nostr enabled interoperability Inspired by @Andreas Griffin and @Bitcoin Safe NIP-17 messages for label sync and group chat. Coming soon to multisig PSBT signer.

Too specific is useless Too broad is meaningless Do anything As long as it’s in sats

Multisig is hard? Picture this: You're a dad who has set up an education fund for your son. You establish a 3-of-5 multisig wallet where you hold 2 keys, your son's mother holds 2 other keys, and your son holds the fifth key. You keep one of your keys in a hot wallet to cover ongoing expenses, while the other key is hidden away in case you need to sign twice. Your wife has the same setup, and your son has his key in a hot wallet. You, your wife, and your son can sign transactions using your hot wallets if there are no issues. However, if you or your wife have a disagreement or are incapacitated, your son will need to convince both of you to sign twice. You coordinate all of this via a NIP-17 Nostr group chat directly on the wallet. The group is derived from the wallet descriptor following the protocol developed by @Andreas Griffin for @Bitcoin Safe , ensuring interoperability. The focus is on providing a frictionless user experience for multisig transactions. #bitcoinuxui #uxui

Raw PSBT day

Who co-signs this?

More control, more visibility.

Implement unified watcher 👀 for multiple addresses.

Get ready for a bitcoin mobile experience like you never seen before. None of this would have been possible without the support of @OpenSats and @The Bitcoin Conference. Thank you! Go to

SatSigner - A bitcoin first mobile application concept

A bitcoin first mobile application concept

and drop you npub and we'll send you the link to the test apk and testflight before the official launch at @The Bitcoin Conference.

Reintroduced color coding on decoded transaction 🩸red for input data, 🌱 green for output data

⚪️ SATSIGNER Alpha is releasing at Bitcoin 2025 in Vegas, at the Open Source Hub on May 27. Come test it in person and feel the full power of bitcoin in the palm of your hands Built with BDK and bdk-rn. Proudly supported by @OpenSats and @The Bitcoin Conference #OPENSOURCE

Decoding transactions and color coding the fields. Can you guess what each color means?

Before and after

Input tracking on SATSIGNER. Chain analysis for everyone.

GM SATSIGNER DEVELOPMENT UPDATE 4 - Transactions, send and receive progress (@Psycarlo ) - Account settings (nostr: @happy nostrich) - Seed words input from clipboard (nostr: @happy nostrich) - UTXO details and bubble chart on account home (nostr: @happy nostrich) - Add transactions detail page (nostr: @happy nostrich) Implement historical chart; Add labels; Add zoom; Fix transaction accounting bug (@Jacob Yi) - IO Preview Sankey Diagram Single Level; New layout and styles (@lokalmaxi) - Add Esplora class for direct access to an Esplora instance; Add functionality to select taproot as address. (@npub1k4rt...7t2p) - Generation of new addresses, encrypted seed phrase, set address path and index in persistent storage, address QR code rendering. (@npub1k4rt...7t2p) - Added scanning BIP21 URI support (@jeezman) - Fix bug paste (@jeezman) - Added bitcoin network mainnet (@Pedro 🧨)

A bitcoin signing application for the paranoid and the not so paranoid.