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temisu
oneKpaq
C++2022–2023
temisu / oneKpaq

oneKpaq

PPM compressor with a 128 bytes short decompressor

2Distinct people
2Mentions
0Explicit recommenders
40GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

PPM compressor with a 128 bytes short decompressor

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by month2 dated mentions

Observed mentions: 2022-06-07 08:51:35 UTC to 2023-05-25 02:25:37 UTC.

012022-06-01 00:00:00 UTC to 2022-07-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsJun 20222022-07-01 00:00:00 UTC to 2022-08-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-08-01 00:00:00 UTC to 2022-09-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-09-01 00:00:00 UTC to 2022-10-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-10-01 00:00:00 UTC to 2022-11-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-11-01 00:00:00 UTC to 2022-12-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsNov 20222022-12-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-01-01 00:00:00 UTC to 2023-02-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-02-01 00:00:00 UTC to 2023-03-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-03-01 00:00:00 UTC to 2023-04-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-04-01 00:00:00 UTC to 2023-05-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-05-01 00:00:00 UTC to 2023-06-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsMay 2023

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Jun 20222022-06-01 00:00:00 UTC2022-07-01 00:00:00 UTC101
Jul 20222022-07-01 00:00:00 UTC2022-08-01 00:00:00 UTC000
Aug 20222022-08-01 00:00:00 UTC2022-09-01 00:00:00 UTC000
Sep 20222022-09-01 00:00:00 UTC2022-10-01 00:00:00 UTC000
Oct 20222022-10-01 00:00:00 UTC2022-11-01 00:00:00 UTC000
Nov 20222022-11-01 00:00:00 UTC2022-12-01 00:00:00 UTC000
Dec 20222022-12-01 00:00:00 UTC2023-01-01 00:00:00 UTC000
Jan 20232023-01-01 00:00:00 UTC2023-02-01 00:00:00 UTC000
Feb 20232023-02-01 00:00:00 UTC2023-03-01 00:00:00 UTC000
Mar 20232023-03-01 00:00:00 UTC2023-04-01 00:00:00 UTC000
Apr 20232023-04-01 00:00:00 UTC2023-05-01 00:00:00 UTC000
May 20232023-05-01 00:00:00 UTC2023-06-01 00:00:00 UTC101

What Hacker News says

2 sources
Now they just need to port something like oneKpaq to 16 bit or maybe something from the extremely tiny decompressor thread [1], just to test compression level to get an idea kpaq on its quickest setting(taking minutes instead of what could be days on its highest) reduced SectorC to 82.81% of its size, of course adding the 128 bit stub knocked it to 677 bytes. It would be interesting to try it on the slowest takes day to bruteforce setting, but I'm not going to attempt that. Some of the compressors in that forum thread since they are 32 bytes and such, might find it easier to get net gains. [0] https://github.com/temisu/oneKpaq [1] https://encode.su/threads/3387-(Extremely)-tiny-decompressor...
In SectorC: A C Compiler in 512 bytes
Crinkler [1] is a popular compressor-linker for 1--8 KB demos and its decompressor (partially overlapping with a PE header) is probably around 1--200 bytes. Later efforts like oneKpaq [2] also have a comparable decompressor size. If you don't mind a shameless plug and a slightly larger decompressor (about 500 bytes in JS) for better compression, my Roadroller [3] might fit the bill as well. [1] https://github.com/runestubbe/Crinkler [2] https://github.com/temisu/oneKpaq [3] https://lifthrasiir.github.io/roadroller/
In Show HN: Micro LZMA decoder (x86 assembly code golf)

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