#COSIG
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cosig.net
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
COSIG logo: COSIG (Collection of Open Science Integrity Guides) Now available at cosig.net!
June 4, 2025 at 1:32 PM
cosig.net
Stealth corrections happen when a publisher makes changes to a scientific article after its publication, without issuing any public notice.

To learn more, check out the latest COSIG entry on Stealth Corrections!

osf.io/34nj5

COSIG (33 guides and growing!) is available at cosig.net.
COSIG: The Collection of Open Science Integrity Guides Newest version available at cosig.net!
February 20, 2026 at 11:51 AM
cosig.net
The COSIG team is at #WCRI2026 ! Our poster is up at station 120. We'll all be there today from 12:00 to 1:30; come stop by!
The COSIG team stands beaming in front of our poster
May 5, 2026 at 6:25 PM
cosig.net
To make COSIG more discoverable for educators looking to develop course material on publication integrity and peer review, COSIG now has an entry in OER Commons! @oercommons.bsky.social #OER

oercommons.org/courses/the-...
The Collection of Open Science Integrity Guides (COSIG)
COSIG is an openly licensed, continuously expanding repository of practical guides for performing post-publication peer review (PPPR). The resource is freely available at https://cosig.net. At the tim...
oercommons.org
February 2, 2026 at 9:11 PM
plosbiology.org
How can one learn to investigate the #integrity of published #scientific papers? This Community Page by @cosig.net, @reeserichardson.bsky.social, @solalpirelli.bsky.social presents COSIG, a collection of guides enabling anyone to perform forensic peer review 🧪#AcademicSky
plos.io/43uZsbC
A diagram outlining the basics, general guides, and field-specific elements of forensic peer review under COSIG
June 11, 2026 at 3:37 PM
cosig.net
Pseudoreplication is the practice of treating non-independent observations as if they were independent replicates. This can dramatically increase the rate of false positives.

COSIG's newest entry covers how to spot them. Read it at osf.io/hyxvr

COSIG 🎉now with 34 guides 🎉is available at cosig.net.
COSIG
The Collection of Open Science Integrity Guides
cosig.net
March 9, 2026 at 8:18 PM
cosig.net
We hope that you enjoy using COSIG! Suggestions to improve COSIG and contributions to the project can be submitted by opening an issue on COSIG's GitHub repo (github.com/cosig-pppr/c...) or by emailing admin@cosig.net.
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 4, 2025 at 1:32 PM
reeserichardson.bsky.social
I am beyond stoked to announce COSIG, the Collection of Open Science Integrity Guides!

Have you always wanted to do post-publication peer review/forensic metascience/sleuthing? Start here!

cosig.net
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
COSIG logo: COSIG (Collection of Open Science Integrity Guides) Now available at cosig.net!
June 4, 2025 at 1:51 PM
ianhussey.mmmdata.io
My guide on GRIM and GRIMMER will be added to COSIG soon.

Very cool set of open resources, take a look or get involved!
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
COSIG logo: COSIG (Collection of Open Science Integrity Guides) Now available at cosig.net!
June 4, 2025 at 2:24 PM
cosig.net
"Investigating the integrity of published scientific papers is key to the scientific process, but the necessary knowledge is in short supply."

Check the COSIG team's new Community Page article in @plosbiology.org !

doi.org/10.1371/jour...
Introducing COSIG: The Collection of Open Science Integrity Guides
Investigating the integrity of published scientific papers is key to the scientific process, but the necessary knowledge is in short supply. This Community Page presents COSIG, an open collection of m...
doi.org
June 10, 2026 at 9:06 PM
cosig.net
COSIG has a new landing page! Check it out at cosig.net.

(Files for COSIG are still hosted on OSF!)
The new landing page for COSIG, available at cosig.net. It reads: Anyone can do post-publication peer review. Anyone can be a steward of the scientific literature. Anyone can do forensic metascience. Anyone can sleuth. However, investigating the integrity of the published scientific literature often requires domain-specific knowledge that not everyone will have. This open source project is a collection of guides written and maintained by publication integrity experts to distribute this domain-specific knowledge so that others can participate in post-publication peer review. COSIG currently hosts 31 guides and was last updated on 25 September 2025. Guides can be downloaded as individual PDFs. A combined PDF with all guides included can be downloaded here.
October 17, 2025 at 12:41 PM
cosig.net
Happy New Year from Sal Sleuthmander and the COSIG team! Here's to doing lots of post-publication peer review in 2026
🎆🥂🔎
An inquisitive cartoon Chinese giant salamander wears a conical "2026" party hat. Multicolored fireworks explode in the background. He wields a magnifying glass and copy of COSIG.
January 1, 2026 at 12:15 AM
reeserichardson.bsky.social
New COSIG guide!
cosig.net COSIG @cosig.net · Nov 24
Scientific articles often report data in tables. COSIG's latest guide covers methods to export these tables into a spreadsheet editor like Microsoft Excel!

COSIG (32 guides and growing!) is available at cosig.net.
New guide: Extracting tabular data from an article cosig.net
November 24, 2025 at 4:13 PM
mvaro.bsky.social
La Collection of Open Science Integrity Guides (COSIG) es un recurso colaborativo creado para ayudar a detectar artículos científicos potencialmente fraudulentos mediante herramientas automatizadas y señales clave a las que estar alerta. #IntegridadCientífica #COSIG #FraudeCientífico
June 11, 2025 at 4:30 AM
cosig.net
This Thursday, COSIG maintainer @reeserichardson.bsky.social will be presenting on using COSIG to spot problematic papers! Registration details below.
rsc.org Royal Society of Chemistry @rsc.org · Nov 6
Do you want to know how you can fight back against fraudulent research & paper mills? Join speakers Jack Wilkinson & Reese Richardson – experts who have made it their mission to empower the world to fight back against the fakery of paper mills: https://rsc.li/47ysXuD #ChemSky @chemistryworld.com
Chemistry World Webinar banner titled 'Restoring integrity: tackling fraud and data manipulation in scientific research'. It includes the date and time for the event and a logo for the Royal Society of Chemistry. The image shows a person examining a scientific paper with a magnifying glass.
November 26, 2025 at 2:59 AM
cosig.net
Today, COSIG and Sal Sleuthmander turn 1 year old! 🎂

Contributions to COSIG are the best birthday gifts we can ever receive, many thanks to all of our contributors 🎉
Sal Sleuthmander, a Chinese giant salamander, sports a conical birthday hat and gazes appreciatively over his cake with a 1 candle.
June 4, 2026 at 3:10 PM
elisabethbik.bsky.social
COSIG was in particular made possible by the fantastic @reeserichardson.bsky.social !
cosig.net COSIG @cosig.net · Jun 4
COSIG was made possible through the work of more than a dozen contributors so far, including:

Anna Abalkina @abalkina.bsky.social
René Aquarius @deadneanderthals.bsky.social
Lonni Besançon @lonnibesancon.bsky.social
Elisabeth Bik @elisabethbik.bsky.social
David Bimler @smutclyde.bsky.social
June 4, 2025 at 3:45 PM
plosbiology.org
How can one learn to investigate the #integrity of published #scientific papers? This Community Page by Yagmur Ozturk @cosig.net @reeserichardson.bsky.social @solalpirelli.bsky.social presents COSIG, a collection of guides enabling anyone to perform forensic peer review 🧪#AcademicSky
plos.io/43uZsbC
A diagram outlining the basics, general guides, and field-specific elements of forensic peer review under COSIG
June 12, 2026 at 5:00 AM
cosig.net
A commentary explaining the motivation behind creating COSIG is available here: doi.org/10.5281/zeno...
The Collection of Open Science Integrity Guides (COSIG): Expanding participation in post-publication peer review
Investigating the integrity of the published scientific literature is a crucial part of the scientific process. However, such investigations often require specialized knowledge. COSIG is an open sourc...
doi.org
June 4, 2025 at 1:32 PM
cosig.net
COSIG has a new mascot but he doesn't yet have a name! Any suggestions?
A mottled gray Chinese giant salamander wearing a deerstalker peers into a magnifying glass. He holds a copy of COSIG in his right hand (foot? limb? idk).
November 19, 2025 at 3:12 PM
cosig.net
Happy Easter from Sal Sleuthmander and the COSIG team! 🐣🐰🪺
Sal Sleuthmander (a floppy Chinese Giant Salamander) were a pink polkadot deerstalker, wields a pink magnifying glass, and stands next to a basket of eggs
April 5, 2026 at 4:09 PM
plosbiology.org
How can one learn to investigate the #integrity of published #scientific papers? This Community Page by Yagmur Ozturk @cosig.net @reeserichardson.bsky.social @solalpirelli.bsky.social presents COSIG, a collection of guides enabling anyone to perform forensic peer review 🧪#AcademicSky
plos.io/43uZsbC
A diagram outlining the basics, general guides, and field-specific elements of forensic peer review under COSIG
June 11, 2026 at 9:00 PM
smutclyde.bsky.social
@cosig.net Are there COSIG guidelines for advising authors who fall victim to corrupt, coercive reviewers? pubpeer.com/publications...
August 7, 2026 at 11:32 PM
cosig.net
COSIG was made possible through the work of more than a dozen contributors so far, including:

Anna Abalkina @abalkina.bsky.social
René Aquarius @deadneanderthals.bsky.social
Lonni Besançon @lonnibesancon.bsky.social
Elisabeth Bik @elisabethbik.bsky.social
David Bimler @smutclyde.bsky.social
June 4, 2025 at 1:58 PM