DICOM PS3.3 2019c - Information Object Definitions
C.8.8.14.16 Referenced Control Point

The number of Items in the Beam Dose Verification Control Point Sequence (300A,008C) is not required to be the same as in the Control Point Sequence (300A,0111). A different sampling can be chosen for the Beam Dose Verification Control Point Sequence, but where the Cumulative Meterset Weight of a Control Point Sequence (300A,008C) Item is the same it shall be referenced by the Referenced Control Point Index (300C,00F0).

DICOM PS3.3 2019c - Information Object Definitions