#Checksums

The sensitivity index: Corrupting Y2K


by @beet_keeper

In December I asked “What will you bitflip today?” Not long after, Johan’s (@bitsgalore) Digtial Dark Age Crew released its long lost hidden single Y2K — well, I couldn’t resist corrupting it.

Fixity is an interesting property enabled by digital technologies. Checksums allow us to demonstrate mathematically that a file has not been changed. An often cited definition of fixity is:

Fixity, in the preservation sense, means the assurance that a digital file has remained unchanged, i.e. fixed — Bailey (2014)

It’s very much linked to the concept of integrity. A UNESCO definition of which:

The state of being whole, uncorrupted and free of unauthorized and undocumented changes.

Integrity is massively important at this time in history. It gives us the guarantees we need that digital objects we work with aren’t harboring their own sinister secrets in the form of malware and other potentially damaging payloads.

These values are contingent on bit-level preservation, the field of digital preservation largely assumes this; that we will be able to look after our content without losing information. As feasible as this may be these days, what happens if we lose some information? Where does authenticity come into play?

Through corrupting Y2K, I took time to reflect on integrity versus authenticity, as well as create some interesting glitched outputs. I also uncovered what may be the first audio that reveals what the Millennium Bug itself may have sounded like! Keen to hear it? Read on to find out more.

Continue reading “The sensitivity index: Corrupting Y2K”

#ac3 #Archives #audio #audiovisual #authenticity #av #Bash #checksums #Code4Lib #corruption #corruptionIndex #digipres #DigitalArchiving #digitalLiteracy #DigitalPreservation #diplomatics #FileFormats #flac #glitch #GlitchArt #glitchaudio #integrity #mp3 #sensitivityIndex #wav

Image showing a hugely glitched file in Audacity. The waveforms should largely be the same in both stereo channels but they are not.A snippet of audio as shown in Audacity. The image shows the audio's waveform and spectograph.
Neighbourhoodie Softwareneighbourhoodie@toot.berlin
2025-01-30

Stressful start to the year?

You have one less worry with #CouchDB 😌

Our latest article covers @couchdb’s #checksums feature: a built-in safeguard that helps protect your data from the impact of ever-dreaded disk corruption.

It’s just one of the features that makes CouchDB your data’s safe place.

Full post on our blog: neighbourhood.ie/blog/2025/01/

Droppie [loma] 🐨♀🌈🐧​🦘msdropbear42@loma.ml
2024-10-07

@zenbrowser Nice! Would you pls publish a regular page on your site with all the #hashsums / #checksums for the #tarballs? Alternatively provide these in your #github pages? Eg, github.com/zen-browser/desktop… really should include these sums, but afaict does not. This request is for both Stable & Twilight.

#ZenBrowser

vintage screwlisp accountscrewtape@mastodon.sdf.org
2024-04-03

@ParadeGrotesque I approve of your The Unix Way mastery, though isn't there also something like this (#openbsd) #checksums

sha512 -h hashes.512 files/*
to make the hashfile

whence
sha512 -C hashes.512 files/*

2023-07-07

@Sevoris it's all based on #checksums. Even if you change the location of the file, the #SHA256 checksum for the file will stay the same. It can log changes per operation between renames and edits. But if you edit a file and then rename it in the same commit, Git will think you deleted the old file and created a new one.

YoSiJo :anxde: :debian: :tor:YoSiJo@social.anoxinon.de
2022-11-14

@Anoxinon Da sind wir wieder. \o/
Und alles schön safe, mit #borg #backup, #btrfs #snapshot und nun auch #postgres #checksums

CK's Technology NewsCKsTechnologyNews
2022-08-07
📡 RightToPrivacy & Tech TipsRTP@fosstodon.org
2022-06-01
📡 RightToPrivacy & Tech TipsRTP@fosstodon.org
2022-06-01

DEBIAN USERS: Ever want to check currently installed packages to look for original file modifications? (ie: malware)

Try out debsums + rdebsums here:

#Debian #Linux #rdebsums #debsums #integrity #checksums #malware #foss #Mobian #Pinephone #Librem5

buymeacoffee.com/politictech/e

📡 RightToPrivacy & Tech TipsRTP@fosstodon.org
2021-12-01

For file integrity, 11.30.2021.img file checksums additionally listed on the 🔐secure, #anonymous 🧅 :tor: #Gitea Tor Hidden Service (#E2EE between tor clients) + hosted outside download server:
#Checksums #Integrity #Linux #Tor #HiddenService #Infosec #Security
gg6zxtreajiijztyy5g6bt5o6l3qu3

📡 RightToPrivacy & Tech TipsRTP@fosstodon.org
2021-11-28

Avoid #backdoor downloads by comparing #checksums for file integrity (avoid #MITM (#ManInTheMiddle) #backdoor file swaps/bad downloads). (PGP signatures for future video)
🔒 :linux:

TIP: Where possible, compare to checksums listed on separate server (such as gitlab project) from download server (helps further verify integrity).

We download & Pop!_OS Linux in this example & install it next! #PopOS #System76 #Infosec #Cybersecurity #linux

On #Odysee:

odysee.com/@RTP:9/popos-beginn

Madiana A. Argon ✅madargon@mastodon.online
2020-10-06

My digital life: Sequel

#drwing #comic #nicknames #checksums #geek

2019-05-11

Tool of the day: #jacksum

jacksum is a #java based tool for computing and verifying #checksums, CRCS and message digests. It supports 58 algorithms like #cksum , #SHA256, #SHA512, #MD5 etc.

#debian #tooloftheday #gnulinux


Day_12.png
Day_12.png
@FuzboleroXV@Mastodon.hostFuzboleroXV@mastodon.host
2018-02-20

New #ITtools required for functional #transparency & #democracy ..:

a) #uncensorable and #verifiable #citizen #voting . Secured & enforced by e.g. #blockchain + #distributed #checksums and #P2P #storage .

b) Enforce real #representativeGovernment through citizen-controlled transparency for decision-making in #politics using #multilayer #digitalidentity & #decentralized #socialMedia .

c) #MultiFactor #authentication incl. a mix of #biometrics + manual factors. Controlled by each person, not a #centralAuthority . No need for #passports etc. anymore.

d) Decentralized / #synchronized storage, verifiable (#irrefutable) by anyone, any time, anywhere. (Soon technical & #economical #reality. We're at the brink of a #disruptive storage #technology #breakthrough . Needed for most parts of modern #progress / #society / #business )

#ITstrategy
#perspective
#future
#socialResponsibility

@Laurelai
@aral

mastodon.host/media/2xAEp1jLci

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