Claim path pointer schema for the Payment Wallet Attestation, titled Payment Authenticator (v2), from the iGrant.io verifiable data registry. It holds the eight fundingSource claims of a tokenised payment instrument: aliasId, currency, icon, iin, panLastFour, parLastFour, scheme and type. Use this skill when you create a payment wallet attestation credential definition on the iGrant.io OpenID4VC API, when you build a Strong Customer Authentication or payment flow, or when you validate transaction data that carries a paymentWalletAttestation.
