A method is provided to authorize an online transaction between a purchaser and a merchant. The method includes providing, via an identity provider, verification of an identity of the purchaser. The method also includes providing, via a payment provider, verification of an ability of the purchaser to pay for the transaction, where the identity provider and the payment provider are different network entities. A computer system is also provided that can conduct an online transaction between a purchaser and a merchant providing one or more goods and/or services. The computer system includes a first node configured to provide verification of an identity of the purchaser, and a second node configured to provide verification of an ability of the purchaser to pay for the transaction, where the first node and the second node are associated with different network entities.