Replying to Avatar Guy Swann

I have officially made my primary mobile BTC (on chain) setup the Nunchuk + 2 Tapsigners that I've been playing around with for the past few weeks. I fucking love it, and even though I've always loved the Coldcard/Keystone/Jade combo with mobile wallets, none of them have matched the ease of using the Tapsigner, which doesn't even account for the fact that all those others I have to carry around a separate device, while I can keep my Tapsigner right in the wallet I already carry around.

Can't believe I haven't been doing this for longer. #[0]
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jimbocoin 🃏 2y ago

Is it possible to set the seed on a Tapsigner? Or do you have to use the seed it comes with?

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DETERMINISTIC OPTIMISM 🌞 2y ago

No BIP39 it’s a BIP32 PK, and needs to be gen in the device. But you pick the chain code that is added to the entropy.

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Guy Swann 2y ago

The seed is derived on the card from a passphrase. So the data that comes with the card is more about what is needed to generate a seed, and you provide the entropy. It just means you have 2 different pieces of info to backup instead of one to regenerate it again later in the case of losing a card.