In this tweet (tinyurl.com/2p8ktpds) I showed how to RECEIVE a Bitcoin payment on a NFC card, thanks to LNURL-pay.
Here the things become more interesting: how to PAY bitcoin over #LightningNetwork "offline" using a NFC card, thanks to LNURL-withdraw and @BtcpayServer!
1/N
Here the things become more interesting: how to PAY bitcoin over #LightningNetwork "offline" using a NFC card, thanks to LNURL-withdraw and @BtcpayServer!
1/N
We can send payments by bringing with us just an offline support such as a NFC card or other tag: our node is always online, so the merchant's device grabs the LNURL from the offline device and talks with the server (the user's node) directly. 2/N
Here the payment has been sent to my BTCpay POS, which has a plugin that enables the NFC sensor ("LNURL NFC Support" plugin by @MrKukks)
Please note that the version is 1.0.1 so it's still early and I had a bit of difficulty to find the NFC sensor on the back of my phone. 3/N
Please note that the version is 1.0.1 so it's still early and I had a bit of difficulty to find the NFC sensor on the back of my phone. 3/N
@MrKukks did a great job and I think we are both on the same page in regards to the Lightning UX for in-store payments!
I created a repo I will soon make it public, in which the whole payment flow is explained. The goal is to create a sort of open standard for POS+NFC. 4/N
I created a repo I will soon make it public, in which the whole payment flow is explained. The goal is to create a sort of open standard for POS+NFC. 4/N
In addition to the merchant part of the flow, I'm working on the client part to make all this reliable, easier... something even non-tech people can use!
The concept is almost ready and cannot wait to show you. 5/N
The concept is almost ready and cannot wait to show you. 5/N
A short How-To added here: github.com/theDavidCoen/L…
6/N
6/N
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