चतुरशीत्यङ्गुलो व्यामो रज्जुमानं खातपौरुषं च ॥ कZ_०२.२०.१७ ॥
caturaśītyaṅgulo vyāmo rajjumānaṃ khātapauruṣaṃ ca
vyāma 为八十四 aṅgula;它是绳量(rajju-māna),也用作“挖掘之人”(khāta-pauruṣa)的标准。
Rope standards enable repeatable site checks; officials cannot easily inflate excavation lengths/depths to overbill the treasury.