Abstract: A vault system provides a signing manager system and a signing system for transferring assets from a vault that are recorded in a distributed ledger. The signing manager system receives an order to transfer an asset from the vault, validates the order in various ways, and sends a signing request containing the order to the signing system. The signing system is implemented at a secure vault location and securely generates and stores vault private keys. Upon receiving the signing request, the signing system performs various validations, signs the transaction, and sends a signing response to the signing manager system. Upon receiving the signing response, the signing manager system validates the signing response and directs that the signed transaction be recorded in the distributed ledger.