Abstract: Systems and methods enable the real-time authorization of payment transactions initiated by personal and mobile computing devices. In one embodiment, a financial account server associated with a payment recipient, or payee, is configured to receive a payment data envelope from a payee computing device. The payment data envelope can originate from a payer computing device and include transaction information obtained from an identity management service associated with the payer. The payment data envelope can further include information that allows for the authentication of the payee and payer identities as well as payment instructions. The payee financial account server processes the payment data envelope and transmits the envelope to a financial account server associated with the payer.

Abstract: Some embodiments include a hot wallet service system including: a manager server configured to receive a cryptocurrency transaction request identifying at least a hot wallet accountholder identifier and to determine a first set of authentication servers to authenticate the cryptocurrency transaction request; the authentication servers, each configured to independently authenticate the cryptocurrency transaction request by verifying a requester of the cryptocurrency transaction request against an accountholder profile associated with the hot wallet accountholder identifier; wherein the authentication servers are configured to approve, independently from each other, the cryptocurrency transaction request by cryptographically signing approval messages to send to an aggregation server using respective private authentication keys stored respectively in the authentication servers when the requester is verified; and the aggregation server configured to aggregate cryptographic signatures of the cryptocurrency transac