| 摘要 |
<p>A number of sets of methods, systems, and apparatuses applicable to transactions are disclosed. One set includes transaction systems configured to reconcile a transaction among multiple provider accounts or user accounts. Another set includes methods of reconciling payment of a coupon. Another set includes transaction apparatuses configured to derive object attributes from digital representations to identify purchasable items. Still another set includes methods of mitigating risk of transaction fraud.</p> |
