Offline Cash

The Bitcoin Note: Physical, secure #Bitcoin that you can easily share, spend or hold. “Crypto bros invent cash.” -@taylorlorenz

[Offline Cash @offlinecashco]

We're excited to show off something that we've been working on: the Bitcoin Note. The Bitcoin Note is a cash instrument that is backed by Bitcoin via multisig.

How does it work? 👇

[Offline Cash @offlinecashco]

@Bryan_Barton https://t.co/6KWuOlx6p0 nope but you do need to be able to sideload because Google deplatformed us.

[Offline Cash @offlinecashco]

In honor of the 15th anniversary of the genesis block, The Bitcoin Note is now available to order once again.

Head to https://t.co/EKcW15PzHG to place your order while in stock.

[Offline Cash @offlinecashco]

@Bryan_Barton https://t.co/oHfLXxEVYd & https://t.co/6KWuOlx6p0

[Offline Cash @offlinecashco]

@SITOSHI13 Our app is open source and the claim after 2029 can be made “offline” (our servers aren’t involved)

So grab a copy of our github app repo on a thumb drive for your grandkids and you should be set.

[Offline Cash @offlinecashco]

Come find cash in the Bazaar @TheBitcoinConf

[Offline Cash @offlinecashco]

Should we bring some Offline Cash notes with us to @TheBitcoinConf ?

[Bitcoin Pistola @BitcoinPistola]

"Como vc usaria Bitcoin sem internet/energia?"

Tem várias respostas pra essa pergunta, mas tem uma delas que eu quero relembrar: Dinheiro físico é uma necessidade.

Empresas vão competir pra fazer a melhor solução de papel moeda lastreado em Bitcoin, como a @offlinecashco fez

[Offline Cash @offlinecashco]

@dddloiola It’s possible that your network is blocking connectivity. That error is most likely because you removed your phone from the note too soon.

Place the note flat on a table and put your phone on top, the camera near the chip, then tap scan.

[Offline Cash @offlinecashco]

@JustinCBram All notes or just one? Will investigate if there is any outage here.

[Offline Cash @offlinecashco]

@JustinCBram If the offline scan did not work I would recommend rebooting/removing phone case. Is this only for one note or all?

If all notes, best guess is a network issue — e.g. VPN connection or a CDN blocking the connection.

[Offline Cash @offlinecashco]

@_t_o_o_r_a_j_ @lightcoin Good question! If you build the app yourself, you can verify that you are adding entropy to the local key on the note. The script never allows our key to spend the Bitcoin using just the server key — also verifiable with the client code.

[light 📜 @lightcoin]

Received an order of https://t.co/wX0vR6FOp9 today 🤩 Cool way to physically transfer BTC offline with low double-spend risk. Comes in currency-grade paper note form factor. Details about the security model are on the website: https://t.co/EimZDzNvPM

[Offline Cash @offlinecashco]

@_t_o_o_r_a_j_ @lightcoin New orders are shipping within 24 hours.

[Offline Cash @offlinecashco]

@George203BTC Smaller denominations or single note sales?

[Offline Cash @offlinecashco]

Available to order, grab a set now while in stock https://t.co/6TP86BAOzZ

[Tom Badley @CurrencyDesign]

@noufsmith ...@offlinecashco :)

[Offline Cash @offlinecashco]

@petewosso What was your original order number? We’ll look it up.

[Offline Cash @offlinecashco]

@PasiPaananen It’s a process, but you can build from https://t.co/Yy6AL1KCiU. Good idea for an ungoogled build.