Hacker News·4 min read·medium
UPI: Anatomy of a Payment Transaction
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✦AI Summary
This article provides a technical breakdown of the Unified Payments Interface (UPI) in India, explaining the multi-party transaction process from scan to settlement. It highlights the scale of the system, which processed over 2,272 crore payments in June 2026.
How it works The rails 13 min read · data through June 2026
technologyeconomybusiness
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