paymentInformation. paymentAccountReference.id

Payment account reference (PAR) is a unique reference value associated with a specific card holder PAN.

A PAR identifies the card account, not just a card. PAR is a non-payment identifier that can be associated to PANs and tokens, as defined by EMVCo. PAR allows all participants in the payments chain to have a single, non-sensitive value assigned to a consumer. This value can be used in place of sensitive card holder identification fields, and transmitted across the payments ecosystem to facilitate card holder identification.