Patent attributes
A computer-implemented method including storing assets from an external entity in a first wallet of a payment service; training a machine-learning model using transaction data, user data, and/or rewards data; determining, using the machine-learning model, reward offers personalized for a user; activating a reward offer; receiving a request to process payment for a user's payment transaction; determining that a reward configuration is applicable; determining an amount of stored assets to assign to the user and assigning the assets to a second wallet of the user, wherein assigning the amount comprises: updating, using an internal ledger, the first wallet to indicate that a portion of the stored assets is owned by the user; and updating the second wallet to indicate ownership of the amount of the asset, wherein the updating of the first wallet and the second wallet is performed without accessing the external entity when updating.