I never realized how cheap satscards are, this is an incredible product, 10/10 would recommend giving as a gift to people
Discussion
Still wish coinkite accepted lightning payments instead of just onchain, but it get it haha
That's the one where the manufacturer can sweep funds by iterating over *public* block hashes with their known encoded serials
> The factory-generated address is made from the block hash (at the "birth height" of the card) and a random number that never leaves the card.
Whoa, that’s good to know!