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code

vandals drew over the satsale cow
@satoshis.place

(x,y)=(600,200)

🔍clightning

hi@utxo.club

🦑 onchain 🪸 address 🐙

this could be you

Try My Blind Signatures Demo
>> Now Posting to Nostr

At Frostsnap ❄ we're making peer-to-peer cash easy and secure.

We're building the most secure Bitcoin hardware wallet in existence, with the principle of distributed security at our core.

Our devices connect in a daisy-chain, allowing you to easily create a multisignature wallet protected behind multiple keys.

Multisignatures are one of the most powerful ideas in bitcoin,

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.

You could hide these three keys in separate geographical locations, or share them with people you trust.

Truly distributed security for private property for the first time in human history.

With Frostsnap you will be able to enact sovereign access policies, such as daily spending limits or inheritance pathways. Similar to those you'd expect with a traditional financial institution, but you remain in control.

We're making peer-to-peer cash easy, and building the tools you need to secure your keys.

Frostsnap is dedicated to empowering human freedom with the latest advancements in cryptography. With Bitcoin, and beyond.

Stay Frosty.

For more, check out my conversation with Stephan Livera Podcast #476: What is FROST? Is it the future of Bitcoin Multisig?

a daisy-chain of frostsnap prototypes

avoid games of chess with market makers

SatSale

SatSale is a lightweight payment processor written in python - SatSale.org.

Peer-to-peer electronic cash is the ultimate fuck you money. The freedom to receive payments from whoever you want, for whatever you want.

You can connect SatSale to your own Bitcoin node or clightning/lnd node. It features a lightweight mode via xpubs, can self-custody lightning addresses, woocommerce point-of-sales and more!

Blind Schnorr Signatures

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.

misc other projects

hi@utxo.club

did the bogdanoff twins fake their own deaths?
will they return to haunt the btc markets?

pollofeed.com

try not to feed the mice 🐁

pray for pollofeed uptime

need2read

accumulating list of things to explore deeper, later™

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

taproot magic

++ blind schnorr signatures

Schnorr Signature Series - from the basics to blind signatures, scriptless scripts, multisignature schemes.
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).

assorted inspiring articles

articles we've read, refreshed occasionally

b10c.me : extracting the private key from schnorr signatures that reuse a nonce && the daily bitmex broadcast

How I checked over 1 trillion mnemonics in 30 hours to win a bitcoin John Cantrell

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.

Bitcoin & Fungability discussion

the biggest problem with cryptocurrency