Ro.boot.vbmeta.digest
This property is set by the bootloader before the kernel starts and is made available to userspace via the ro.boot.* namespace.
It is a calculated hash of all the VBMeta structs involved in the verified boot process, including the root struct (from the vbmeta partition) and any from chained partitions . This digest uniquely identifies the exact set of verification metadata used for the current boot. ro.boot.vbmeta.digest
