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UPI: Anatomy of a Payment Transaction

https://timeseriesofindia.com/economy/reads/upi-architecture/
24•prtk25•3h ago

Comments

pzmarzly•1h ago
22B transactions a year mean an average of ~700 QPS for the NPCI switch. Of course the traffic is not uniform, it probably peaks at many times that number, but that still doesn't sound that bad - for comparison, a quick Google tells me Nasdaq TotalView ITCH feed peaks at 100k+ QPS at market open.
repeek•52m ago
22B in the month of June 2026, so 264B extrapolated annually.
thehamkercat•24m ago
~8.8K TPS on average
jesuswasjew•43m ago
Centralized, kyced, private money transaction network. Is this something good?
haskman•27m ago
Yes it is. It's not trying to be new money, it's your money that already works.
fragmede•2m ago
How is it KYCd yet also private?

Prefer Strict Tables in SQLite

https://evanhahn.com/prefer-strict-tables-in-sqlite/
95•ingve•2h ago•34 comments

Who manages the agents?

https://www.off-policy.com/dont-go-quietly-into-the-ai-night/
41•GavCo•2h ago•28 comments

We scaled PgBouncer to 4x throughput

https://clickhouse.com/blog/pgbouncer-clickhouse-managed-postgres
128•saisrirampur•4h ago•15 comments

The early History of the Singular Value Decomposition (1993) [pdf]

https://www.math.ucdavis.edu/~saito/courses/229A/stewart-svd.pdf
63•wolfi1•4h ago•27 comments

Nvidia, CoreWeave, and Nebius: Inside the Circular Financing of the GPU Boom

https://io-fund.com/ai-stocks/nvidia-coreweave-nebius-circular-financing-gpu-boom
47•adletbalzhanov•2h ago•11 comments

Modern decor may be straining people's brains

https://studyfinds.com/modern-decor-may-be-straining-peoples-brains/
125•downwithdisease•3h ago•108 comments

UPI: Anatomy of a Payment Transaction

https://timeseriesofindia.com/economy/reads/upi-architecture/
24•prtk25•3h ago•6 comments

Leaded Gas Was a Known Poison the Day It Was Invented (2016)

https://www.smithsonianmag.com/smart-news/leaded-gas-poison-invented-180961368/
108•downbad_•2h ago•67 comments

AI Can't Recreate the Thrust Game (But It Can Help You Understand It)

https://www.jamesdrandall.com/posts/thrust_ai_powered_software_archaeology/
32•msephton•21h ago•18 comments

Biff.graph: structure your Clojure codebase as a queryable graph

https://github.com/jacobobryant/biff/tree/v2.x/libs/graph
47•jacobobryant•4d ago•1 comments

Female US rower completes historic solo journey from California to Hawaii

https://www.theguardian.com/us-news/2026/jul/04/california-hawaii-rowing-solo-journey
121•speckx•2h ago•36 comments

Sixtyfour (YC P25) Is Hiring

https://www.ycombinator.com/companies/sixtyfour/jobs/bIbgQkL-operations-associate-data-samples-cu...
1•HPMOR•3h ago

Show HN: Learn by rebuilding Redis, Git, a database from scratch

https://shipthatcode.com
62•acley•6h ago•23 comments

Show HN: Orbit – AR satellite tracker, watch 15k+ objects

https://nagylukas.github.io/orbit.html
18•lukas9•3h ago•2 comments

Einstein's relativity rules chemical bonds in heavy elements, new research shows

https://www.brown.edu/news/2026-07-09/chemical-bonds-relativity
364•hhs•21h ago•163 comments

Reverse centaurs are the answer to the AI paradox

https://pluralistic.net/2025/09/11/vulgar-thatcherism/#there-is-an-alternative
51•jason_s•2h ago•16 comments

How to Hide from Killer Drones

https://www.economist.com/science-and-technology/2026/07/08/how-to-hide-from-killer-drones
52•pseudolus•1h ago•42 comments

Amber the programming language compiled to Bash/Ksh/Zsh

https://amber-lang.com/
36•_superposition_•4d ago•20 comments

Google Search lets creators know more about their reach

https://www.theverge.com/tech/961955/google-search-console-reach-platform-properties
80•herbertl•3d ago•37 comments

Show HN: Reame – a CPU inference server that gets faster as it runs

https://github.com/swellweb/reame
12•targetbridge•3h ago•3 comments

BLISS

https://en.wikipedia.org/wiki/BLISS
32•tosh•2h ago•7 comments

Apple sues OpenAI, accuses ex-employees of stealing trade secrets

https://9to5mac.com/2026/07/10/apple-sues-openai-trade-secret-theft/
1505•stock_toaster•23h ago•838 comments

Show HN: Earth Game – An offline CLI for turning life goals into quests

https://github.com/skorotkiewicz/earth-game
10•modinfo•3h ago•2 comments

Book: RISC-V System-on-Chip Design

https://www.amazon.com/RISC-V-Microprocessor-System-Chip-Design/dp/0323994989
77•xlmnxp•2d ago•33 comments

Digital Deli, 1984 book by early PC hackers and enthusiasts

https://www.atariarchives.org/deli/
34•achairapart•3d ago•2 comments

Earendel (Astronomical Object)

https://en.wikipedia.org/wiki/Earendel_(astronomical_object)
28•brainlessdev•2h ago•5 comments

An update on residential proxies and the scraper situation

https://lwn.net/SubscriberLink/1080822/990a8a5e2d379085/
309•chmaynard•1d ago•304 comments

Otary – Image and Geometry Python Library Now Has Tutorials

https://alexandrepoupeau.com/otary/learn/
82•poupeaua•3d ago•1 comments

SpaceX wants to launch 100k more Starlink satellites for 100x the bandwidth

https://www.zdnet.com/home-and-office/networking/spacex-wants-to-launch-100000-more-starlink-sate...
282•CrankyBear•1d ago•1036 comments

Speculations Concerning the First Ultraintelligent Machine (1965) [pdf]

https://languagelog.ldc.upenn.edu/myl/Good1964.pdf
82•zetalyrae•6h ago•40 comments