I published this article as a go-to reference for verifying the inner workings of Cobo Vault’s cryptocurrency storage devices. Open source practices are extremely important to Bitcoin as a decentralized system that depends on independently verifiable products and services to play the role that centralized institutions play in traditional banking. In addition to making it clear how transparent Cobo Vault’s hardware wallet is, this article also explains the role the product will play in the future development of the Bitcoin ecosystem.