Replying to nobody

At a recent Bitcoin meetup a developer showed me a device (picture below he was holding) that could receive AND verify payments offline. The sender had to have online connectivity... but not the receiver.

Thinking about Squares' outage yesterday and can't help but think, #BitcoinFixesThis. Wonder if this this could be rolled out in Square to mitigate future payment outages. 🤔 Tag: nostr:npub1sg6plzptd64u62a878hep2kev88swjh3tw00gjsfl8f237lmu63q0uf63m

12
deleted 2y ago

Interesting..this is for on-chain only i assume ?

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nobody 2y ago

I honestly don't remember if it was LN or onchain... or even how it worked under the hood. But a pin key was being sent and confirmed. It was cool.

Congrats on the little tykes achievement in your status BTW 🤙