Try Caravan
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We’re building best-in-class, secure, open-source tooling to help push multisig standards forward.
By providing best-in-class, secure open-source signing tooling, we're not just investing in our own future, but also in the bitcoin network.
Investing in open source helps us discover cutting-edge solutions that keep us at the forefront of bitcoin self-custody and multisig, putting keys in the hands of the next billion.
Our open-source development reflects our engineering culture - developing code that can stand the test of time and delivers reliability to our users.
At Unchained, we’re building for the long-run, and we want to work with others who are, too.
Caravan is Unchained Capital's stateless, open-source multisig wallet tool. Caravan was designed as a recovery tool for vaults and loans; Unchained clients can use the tool to retain full access to their bitcoin in the case that Unchained services are down or no longer exist.
Caravan-Bitcoin is an open Javascript library that contains useful functions for key management, validation, and especially multisig address construction and transaction authoring. It relies on the popular and well-tested bitcoinjs-lib library but layers in additional functionality to help developers quickly get up and running with multisig.
Caravan-Wallets is a Javascript library that contains Trezor, Ledger, and Hermit interactions through the browser. It can be used to more easily integrate bitcoin hardware wallet devices with a multisignature wallet application.
Hermit is a command-line, sharded, air-gapped wallet designed to help groups of people safely manage and use bitcoin private keys through leveraging the emerging SLIP-0039 standard. It is designed to run in a stripped-down Linux environment on custom hardware with WiFi, Bluetooth, USB, and all other forms of wired & wireless communication removed.
Created by one of our engineers as a hobby project, bip370.org is a tool for parsing partially signed bitcoin transactions (PSBTs). It was inspired by bip174.org, with the intention of adding compatibility for newer versions of PSBTs. Notable features include converting between PSBT versions, converting the serialization encoding, and flags for the state of the operator roles saga.
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