The sentinel PaymentRequest.asset value for the chain-native
asset (SOL). Exact lowercase match — SPL mints are case-sensitive
base58 and are always 32-byte values, so no mint can collide with
the sentinel. Anything else is treated as an SPL mint (base58).
The sentinel
PaymentRequest.assetvalue for the chain-native asset (SOL). Exact lowercase match — SPL mints are case-sensitive base58 and are always 32-byte values, so no mint can collide with the sentinel. Anything else is treated as an SPL mint (base58).