When playing stroke play, both the player and marker have certain responsibilities. Below is the wording that can be found on the R&A mobile app and website:
Player responsibility in Stroke Play
Marker responsibility in Stroke Play
After each hole during the round, your marker should confirm the number of strokes you took on that hole and enter that gross score on your scorecard. When the round has ended, your marker must certify the hole scores on your scorecard. If you had more than one marker, each marker must certify the scores for those holes where they were your marker, but if one of the markers saw you play all of the holes, that marker may certify the scores for all the holes.