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UUIDv47: Store UUIDv7 in DB, emit UUIDv4 outside (SipHash-masked timestamp)

news.ycombinator.com Unknown 2025-09-21 18:02:29

UUIDv47 - UUIDv7-in / UUIDv4-out (SipHash-masked timestamp) uuidv47 lets you store sortable UUIDv7 in your database while emitting a UUIDv4-looking façade at your API boundary. It does this by XOR-masking only the UUIDv7 timestamp field with a keyed SipHash-2-4 stream tied to the UUID’s own random bits. Header-only C (C89) · zero deps Deterministic, invertible mapping (exact round-trip) RFC-compatible version/variant bits (v7 in DB, v4 on the wire) Key-recovery resistant (SipHash-2-4, 128-b

Topics: key siphash uuid128_t v4 v7
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I can’t wait for Samsung and Google to copy this revolutionary iPhone 17 feature

androidauthority.com Unknown 2025-09-26 11:00:37

Joe Maring / Android Authority Every Apple event, be it WWDC or the new iPhone launch, brings me a set of confusing thoughts. There’s a lot of mockery over what Apple has decided to copy innovate and their random announcements that no one asked for (hello, iPhone Air), but also a bit of jealousy-slash-awe at Apple’s pull over the entire phone industry. I see that new front-facing camera, and I know many Android brands are now scrambling to copy it in 2026; it’ll easily be the new gold standard

Topics: 128gb apple new phone storage
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Inverting the Xorshift128 random number generator

news.ycombinator.com Unknown 2025-10-08 21:49:38

CVE-2025-7783 is a very recent vulnerability affecting a lot of applications in the Node.js ecosystem including those which use axios or the deprecated request library. In all honesty, this vulnerability is really an edge case that is extremely unlikely to be exploited: it is dependent upon a number of events that are not normally present. One of those events is the attacker having access to five consecutive outputs of JavaScript Math.random( ) , which allows the attacker to predict future outpu

Topics: bit bits code outputs xorshift128
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Nvidia DGX Spark

news.ycombinator.com Unknown 2025-10-21 05:35:23

Powered by the NVIDIA GB10 Grace Blackwell Superchip, NVIDIA DGX™ Spark delivers 1 petaFLOP of AI performance in a power-efficient, compact form factor. With the NVIDIA AI software stack preinstalled and 128GB of memory, developers can prototype, fine-tune, and inference the latest generation of reasoning AI models from DeepSeek, Meta, Google, and others with up to 200 billion parameters locally, and seamlessly deploy to the data center or cloud.

Topics: 128gb 200 ai blackwell nvidia
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Here are five great iPhone deals if you’re shopping on a budget: options below $650

9to5mac.com Michael Burkhardt 2025-11-09 04:02:27

If you’re trying to buy a new iPhone, it can often be hard to find something on a tighter budget. Sure, Apple offers the iPhone 16e at $599 – but not everyone finds that to be a compelling phone. Luckily, there’s plenty of great options if you want to buy used, and I’ll be delving into five great picks for varying needs. #1 – iPhone 15 Pro If you’re after higher end features like a ProMotion display, Apple Intelligence, and a telephoto lens – the iPhone 15 Pro is hands down the best overall pi

Topics: 128gb 15 iphone ll making
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Here are five great iPhone deals if you’re shopping on a budget

9to5mac.com Michael Burkhardt 2025-11-17 22:02:27

If you’re trying to buy a new iPhone, it can often be hard to find something on a tighter budget. Sure, Apple offers the iPhone 16e at $599 – but not everyone finds that to be a compelling phone. Luckily, there’s plenty of great options if you want to buy used, and I’ll be delving into five great picks for varying needs. #1 – iPhone 15 Pro If you’re after higher end features like a ProMotion display, Apple Intelligence, and a telephoto lens – the iPhone 15 Pro is hands down the best overall pi

Topics: 128gb 15 iphone ll making
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April Fools 2014: The *Real* Test Driven Development (2014)

news.ycombinator.com Unknown 2025-11-19 03:46:40

Update: APRIL FOOLS! class LinkGeneratorTest(googletest.TestCase): def setUp( self ): self .generator = link_generator.LinkGenerator() def testGetLinkFromIDs( self ): expected = ( 'https://frontend.google.com/advancedSearchResults?' 's.op=ALL&s.r0.field=ID&s.r0.val=1288585+1310696+1346270+' ) actual = self .generator.GetLinkFromIDs(set((1346270, 1310696, 1288585))) self .assertEqual(expected, actual)

Topics: 1288585 1310696 1346270 expected self
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Not happy with iPhone 16e? Here are five great iPhone deals for those on a budget

9to5mac.com Michael Burkhardt 2025-11-19 10:02:27

If you’re trying to buy a new iPhone, it can often be hard to find something on a tighter budget. Sure, Apple offers the iPhone 16e at $599 – but not everyone finds that to be a compelling phone. Luckily, there’s plenty of great options if you want to buy used, and I’ll be delving into five great picks for varying needs. #1 – iPhone 15 Pro If you’re after higher end features like a ProMotion display, Apple Intelligence, and a telephoto lens – the iPhone 15 Pro is hands down the best overall pi

Topics: 128gb 15 iphone ll making
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April Fools 2014: The *Real* Test Driven Development

news.ycombinator.com Unknown 2025-11-19 09:46:40

Update: APRIL FOOLS! class LinkGeneratorTest(googletest.TestCase): def setUp( self ): self .generator = link_generator.LinkGenerator() def testGetLinkFromIDs( self ): expected = ( 'https://frontend.google.com/advancedSearchResults?' 's.op=ALL&s.r0.field=ID&s.r0.val=1288585+1310696+1346270+' ) actual = self .generator.GetLinkFromIDs(set((1346270, 1310696, 1288585))) self .assertEqual(expected, actual)

Topics: 1288585 1310696 1346270 expected self
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Optimizing My Disk Usage Program

news.ycombinator.com Unknown 2025-11-20 20:59:01

In my previous post, Maybe the Fastest Disk Usage Program on macOS, I wrote about dumac. A very fast alternative to du -sh that uses a macOS-specific syscall getattrlistbulk to be much faster than the next leading disk usage program. I received some great technical feedback in the Lobsters thread. After implementing some of the suggestions, I was able to increase performance by ~28% on my large benchmark. hyperfine --warmup 3 --min-runs 5 './before temp/deep' './after temp/deep' Benchmark 1: .

Topics: 128 deep inode ms temp
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The end is near for flagships with a meagre 128GB storage

androidauthority.com Unknown 2025-11-28 10:06:19

Ryan Haines / Android Authority TL;DR The upcoming iPhone 17 Pro may start at 256GB of internal storage, eliminating the older 128GB option. A $50 price increase is expected alongside the bumped-up base storage tier. Apple’s move could pressure remaining Android flagships, such as the Galaxy S and Pixel lineups, to ditch low-storage models and finally start at 256GB. Android flagships have long moved to higher storage options, with many offering as much as 1TB of storage. While external stora

Topics: 128gb 256gb iphone pro storage
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