vandals drew over the satsale cow
At Frostsnap ❄ we're making
bitcoin self-custody easy.
With Frostsnap you can start with a single device that plugs into your phone. In the Frostsnap app, you can create a new wallet. Actions are sent from the Frostsnap app to the device where they are confirmed.
If you want to upgrade the security of your bitcoin wallet, 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 ❄.
SatSale is a lightweight payment processor written in python -
You can connect SatSale to your own Bitcoin node or clightning/lnd node. SatSale also supports xpubs, lightning addresses, woocommerce point-of-sales and more! It can be used to spit out unique addresses like we see around this page (test em).
With blind signatures you can have a server sign something, without
them learning what they have signed. This is powerful for building
coordinators or authorities that respect user privacy.
blind schnorr signatures demo 👀 which runs entirely in browser using WASM 🦀 and it can even sign a Nostr post
Blind schnorr signature implementation in a
PR to secp256kfun.
pollofeed.comtry not to feed the mice 🐁
pray for pollofeed uptime
BLS and announcement free DLCs - Oracles are only called upon to arbitrate DLC bets when there is a dispute.BLS // DLCs // ORACLES
Silent payments - Private reusable static addresses without the need for an onchain 'notification transaction' while also remaining non-interactive. Receiver detects payments by scanning the UTXO set. Also see: article and reusable taproot addresses.TAPROOT // PRIVACY // REUSABLE PAYMENT CODES // SCHNORR // DIFFIE-HELLMAN
Minimint - Federated chaumian banks that allow the anonymous transfer of assets that are backed by the mint.FEDERATED CHAUMIAN MINTS // SCALING // BLIND SIGNATURES
Teleport transactions - Alice and bob can exchange bitcoin with one another in completely disconnected transactions (think atomic swap on the same chain).COIN SWAPS // PRIVACY // TAPROOT // SCHNORR
Schnorr Signature Series
- from the basics to blind signatures, scriptless scripts,
Highly recommend that you have a go at writing any math out.
Blind Schnorr Signatures & Security (video) - so informative you'll have to pause a lot.
BIP340 - Schnorr Signatures for secp256k1- lots of small intricacies like how taproot public keys have implicity y-coordinates (xonly).
Entropy Attacks! The conventional wisdom says that hash outputs can't be controlled; the conventional wisdom is simply wrong.
Bitcoin's fungibility must become completely unquestionable through various abstractions of utxos. Collaborative transactions, multisigs, and swaps, L2s, & protocol changes.