The distinctive point
Mauryan purana or dharana: a value with room for evidence
The distinctive point is the uncertainty, not just the headline magnitude. The matrix carries ± 0.192 g and names the basis as thirty-two-ratti-system. That keeps comparison possible without pretending that every specimen, survey, or period produced one perfect constant.
Basis: thirty-two-ratti-system. Check the record source.
- smallerMauryan masha4 × Mauryan masha
- largerMauryan karsha1/2.5 of Mauryan karsha
What this unit was
Mauryan purana or dharana is modelled here as a weight standard of the Ancient Indian tradition, associated with Indian subcontinent during Mauryan-period representative. The converter represents one purāṇa as 3.888 g; its basis is thirty-two-ratti-system. The matrix carries an indicative uncertainty of ± 0.192 g.
Within that setting, the unit belonged to a working system for trade, craft production, taxation, bullion, and sometimes coin accounting. It should be read with its period, locality, and evidential basis attached, not as a universal value shared by every culture using a similar name. Coin mass is not a monetary exchange rate.
Evidence of use and sources
The working value is traceable to Indian National Science Academy, weighing devices. Its record is classified as low confidence and uses the stated basis rather than an assumed culture-wide constant.
Local-library boundary. The supplied local library has no directly pertinent quotation for this tradition. The linked record source supports the stated conversion; three relevant local quotations require a dedicated source acquisition.
Working definition
Mauryan purana or dharana is represented as a Ancient Indian standard associated with Indian subcontinent during Mauryan-period representative.
The converter uses 3.888 g per unit with indicative matrix uncertainty ± 0.192 g.
How to use it
Basis: thirty-two-ratti-system; confidence: low. A shared historical name does not make this value portable to another period or polity.
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