The Vault12 mobile network is enabled by Zax nodes: digital "dead drops" designed for mobile machine-to-machine communications with unbreakable privacy. Each Zax node is a NaCl-based Cryptographic Relay.
In this paper, we describe a new cryptostorage platform that is based on hierarchical Shamir's secret sharing. This platform enables new security and storage models, which are designed specifically for owners of crypto assets. We will show how decentralized cryptography and a decentralized storage network come together to form infrastructure that protects cryptocurrencies with full owners control, complete privacy, reliability and high availability. Owners of crypto assets can quickly setup distributed Vaults that are highly resilient and impenetrable to attacks on any part of the cryptostorage infrastructure.