COSIG
banner
cosig.net
COSIG
@cosig.net
The Collection of Open Science Integrity Guides (COSIG) is a constantly-expanding resource for performing post-publication peer review.
https://cosig.net
COSIG has a new landing page! Check it out at cosig.net.

(Files for COSIG are still hosted on OSF!)
October 17, 2025 at 12:41 PM
What is a "calculation chain" file? How can I easily identify duplicated values in a table?

COSIG's 31st guide is all about data forensics using Microsoft Excel!

osf.io/bz725

As always, all guides are available at cosig.net.
September 25, 2025 at 5:15 PM
Adjusting the black/white levels in an image can reveal inconsistencies barely perceptible to the naked eye.

A 2018 article in Scientific Reports was just retracted as a result of several such inconsistencies.

Check out COSIG's guide on software for image forensics here: osf.io/g23pf
September 17, 2025 at 5:21 PM
Starting in 10 minutes!
cosig.net COSIG @cosig.net · Sep 8
This Friday, September 12, COSIG maintainer @reeserichardson.bsky.social will be participating in a panel discussion (16:00 CEST, 10:00 AM EDT) as part of the all-day event "Making Sense of Open Science" hosted by the Czech Academy of Sciences. Watch online!

www.projekt-amulet.cz/index.php/en...
Public Hearing on Open Science | Project AMULET
Making Sense of Open SciencePublic Hearing on the Principles and Practices of Data Management, Publishing Regimes, and Public Engagement in Science Location: Rooms 205 and 206, main building of the Cz...
www.projekt-amulet.cz
September 12, 2025 at 1:51 PM
This Friday, September 12, COSIG maintainer @reeserichardson.bsky.social will be participating in a panel discussion (16:00 CEST, 10:00 AM EDT) as part of the all-day event "Making Sense of Open Science" hosted by the Czech Academy of Sciences. Watch online!

www.projekt-amulet.cz/index.php/en...
Public Hearing on Open Science | Project AMULET
Making Sense of Open SciencePublic Hearing on the Principles and Practices of Data Management, Publishing Regimes, and Public Engagement in Science Location: Rooms 205 and 206, main building of the Cz...
www.projekt-amulet.cz
September 8, 2025 at 5:36 PM
Here we are!
September 4, 2025 at 10:15 PM
COSIG maintainers Reese Richardson and Yagmur Ozturk are at #PRC10 in Chicago! Come find us to talk about post-publication peer review!
September 3, 2025 at 6:38 PM
Stocking the Librarian’s Publishing Integrity Toolkit

The number of tools available to help library staff identify potential research misconduct is rapidly expanding. Here are some recommendations.

By Matthew Goddard and Zachariah Motts

katinamagazine.org/content/arti...
Stocking the Librarian’s Publishing Integrity Toolkit
The number of tools available to help library staff identify potential research misconduct is rapidly expanding. Here are some recommendations.
share.google
August 12, 2025 at 7:18 PM
Reposted by COSIG
Want to get involved finding problematic scientific articles? Check out the Collection of Open Science Integrity Guides at cosig.net!

@cosig.net
August 6, 2025 at 4:27 PM
One of the issues raised in this commentary is data leakage between the training set and the validation set. Check out COSIG's entry on data leakage here: osf.io/d8mzb
July 22, 2025 at 8:00 PM
On Monday, July 21 at @reeserichardson.bsky.social will be giving a talk about COSIG for Open Research Summer School, organized by @kingsioppn.bsky.social!

Online attendance for all of Open Research Summer School is free! Register here: www.eventbrite.co.uk/e/open-resea...
Open Research Summer School
Join us at the Open Research Summer School for a deep dive into the world of research - see you there on 21 to 25 July 2025 at 8:30 AM!
www.eventbrite.co.uk
July 16, 2025 at 6:46 PM
Our entry on reporting publication integrity issues to publishers has contact information to reach the publication integrity and publication ethics departments at most major scholarly publishers. Read here: osf.io/4edk2

All of COSIG is available at cosig.net!
July 10, 2025 at 11:43 AM
A 2019 Cochrane systematic review on using lithium to treat acute mania confuses standard error (SE) with standard deviation (SD) for two studies included in a meta-analysis, resulting in an overestimation of overall effect size in that meta-analysis.

See COSIG's guide on the topic: osf.io/hp4yd
July 3, 2025 at 5:30 PM
"Data leakage" occurs when a statistical or machine learning model has access to data it shouldn't during the training process. This can lead to severe overestimation of a model's predictive performance.

Data leakage is the subject of COSIG's 30th guide! Read here: osf.io/d8mzb
July 2, 2025 at 6:30 AM
A recent article on preventing solar cells from overheating using nanoparticles presents this TEM image. However, this image contains apparent duplications. Can you spot them? Answers in PubPeer thread below.

See COSIG's guide on image duplication: osf.io/547re
June 26, 2025 at 6:32 AM
Reposted by COSIG
Anyone can help safeguard science🔎💡

That's the spirit behind COSIG, a brilliant, community-led #OpenScource project that empowers anyone to take part in post-publication peer review, or #Sleuthing

Huge congrats to the team behind it🎉

We'll be recommending it widely!

#ResearchIntegrity
cosig.net COSIG @cosig.net · Jun 4
Anyone can do post-publication peer review.
Anyone can be a steward of the scientific literature.
Anyone can do forensic metascience.
Anyone can sleuth.

That's why we are launching COSIG: the Collection of Open Science Integrity Guides, an open source resource for all of the above.

cosig.net
June 23, 2025 at 7:55 AM
Do you want to take part in post-publication peer review but have no idea where to start? COSIG's newest guide covers exactly this, going over some basics and suggestions on how to get started with PPPR/forensic metascience/sleuthing!

cosig.net

"Getting started" guide: osf.io/8m2tz
June 19, 2025 at 2:49 PM
A recent article on memory-related gene expression has been repeatedly critiqued for a lack of multiple hypothesis correction, which increases the likelihood of false positives.

See COSIG's entry on multiple hypothesis correction here: osf.io/csxd5
June 17, 2025 at 5:18 PM
Check out coverage of COSIG in @chemistryworld.com!
June 17, 2025 at 3:13 PM
Can you spot any issues with this published FTIR spectrum?

One answer below...🧵
June 16, 2025 at 5:23 PM
Reposted by COSIG
Awesome implementations of GRIM
by @lhdjung.bsky.social and @lukaswallrich.bsky.social
June 13, 2025 at 2:42 PM
If you asked four people their age in years, the average of their ages could only ever end in .0, .25, .50 or .75.

This is the principle underlying GRIM (Granularity-Related Inconsistency of Means), now covered in a new guide for COSIG's first official update!

cosig.net

GRIM guide: osf.io/67bp4
June 13, 2025 at 2:26 PM
Reposted by COSIG
@cosig.net coverage in Nature news!

Collection of Open Science Integrity Guides
Anyone can do post-publication peer review.
Anyone can be a steward of the scientific literature.

www.nature.com/articles/d41...
How to spot suspicious papers: a sleuthing guide for scientists
An open collection of tips and tools could help researchers and publishers to pick up on problematic research.
www.nature.com
June 11, 2025 at 10:29 AM
Read up on COSIG in Miryam Naddaf's coverage for @nature.com!

doi.org/10.1038/d415...
How to spot suspicious papers: a sleuthing guide for scientists
An open collection of tips and tools could help researchers and publishers to pick up on problematic research.
doi.org
June 11, 2025 at 11:13 AM
COSIG is an open source project sustained by community contributions.

Have suggestions, feedback or ideas for new guides? Open an issue on the GitHub repo (github.com/cosig-pppr/cosig), email admin@cosig.net, or let us know here!

What would you like to see included in COSIG?

#ScienceIntegrity
GitHub - cosig-pppr/cosig: The Collection of Open Science Integrity Guides (COSIG)
The Collection of Open Science Integrity Guides (COSIG) - cosig-pppr/cosig
github.com
June 7, 2025 at 3:37 PM