At Frostsnap ❄ we're making
bitcoin self-custody easy.
You start with a single device that plugs into your phone.
In the Frostsnap app, you then create a new wallet. Actions are sent
from the Frostsnap app to the device where they are confirmed.
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If, later, you want to upgrade the security of your bitcoin wallet,
then you can connect more frostsnap devices and seamlessly upgrade to
a multisignature wallet protected behind multiple keys.
For example, with three frostsnap devices you can create a 2-of-3 where you need to sign on any two of the devices in order to spend funds.
With frostsnap, we've devised a way to create additional access policies to the same wallet, such as a "spending key" where a single device can spend up to some user defined limit per day.
Or a user could create an additional set of multisig keys for inheritance. Suppose you create an additional 3-of-3 and share those keys amongst trusted parties.
Advancements of cryptography allow us to build an upgradable, personalized, and intuitive self-custody experience. Frostsnap is building out this vision.
FROST provides great privacy, scales well with fees, and is malleable (can add or remove signers after key generation!). 🪄 polynomials ❄.