Why the Project 2013B Master Serial Number List Is Private
Project 2013B maintains the largest verified database of submitted serial numbers for the rare Series 2013 $1 star note duplicate-serial-number error. This page explains why the project's master list of submitted serial numbers is no longer publicly viewable and how keeping the database private improves match accuracy, protects collectors, and increases the chances of successfully connecting owners of matched pairs.
Submitting your serial number to Project 2013B is the most effective way to locate the matching partner to your note. No other website or registry has matched more owners of duplicate-serial-number 2013B star notes. As of September 2025, the project has verified over 190 confirmed matched pairs.
To protect collectors and improve match success rates, the master list of submitted serial numbers is now maintained privately. The sections below explain why this change was made.
What Is the Project 2013B Database?
The Project 2013B database is the largest privately maintained registry of Series 2013 $1 star notes with duplicate serial numbers. These notes were created during a rare printing error that produced two separate print runs of star notes with identical serial numbers — one printed in Washington, D.C., and the other in Fort Worth, Texas.
When two collectors each own one of these notes with the same serial number, they form a matched pair. Because the notes were printed at different facilities, many pairs remain separated in circulation.
The goal of Project 2013B is to:
- Collect serial numbers from owners of 2013 star notes
- Identify duplicate serial number matches
- Connect the owners of 2013 star note matched pairs
- Document confirmed matches for research and collecting history
The database currently contains tens of thousands of submitted serial numbers and has already produced hundreds of confirmed matched pairs. By privately maintaining this registry, Project 2013B can verify submissions, prevent fraud, and greatly increase the likelihood of successfully connecting collectors who own matching notes.
• Verified serial numbers recorded: 80,000+
• Confirmed matched pairs: 190+
• Active submissions from collectors worldwide
Why the Project 2013B Serial Number Database Is Private
1. Higher Matching Success
Since removing the public list, the number of submissions has increased significantly. More submissions mean a higher probability that the other half of your duplicate serial number pair is already recorded in the database or will be submitted soon.
A public list created an unexpected problem. Two collectors could each own one half of a matched pair yet hesitate to submit their serial numbers because they were waiting to see the other note appear on the list first. When neither owner submitted their note, the match could never be detected.
Submitting your serial number immediately breaks this deadlock and allows Project 2013B to actively detect the match.
2. Preventing Scams and Protecting Collectors
The original public master list was a large PDF containing serial numbers but no contact information. Unfortunately, scammers began exploiting that list.
In several cases, individuals attempted to create fake matches by:
- Registering a common Washington D.C. note as a Fort Worth note using a serial number from the public list.
- Listing the note on auction sites at inflated prices while claiming it matched a serial number from the official registry.
- Disappearing when verification and photo proof were required.
Keeping the master list private removes this scam vector entirely and protects legitimate collectors.
Project 2013B also maintains a private monitoring list of known and suspected scammers. When a flagged serial number triggers a potential match, the suspected submitter must first provide photo verification before any contact information is shared.
3. Improved Data Accuracy
The former public list contained over 1,000 pages of serial numbers and quickly became outdated. Because of the time required to generate the document, it was often several weeks behind the current database.
Other issues affecting accuracy included:
- Typing errors when submitting serial numbers
- Notes incorrectly identified as Fort Worth or Washington D.C.
- Notes sold without notifying the project
- Historical entries inherited from earlier projects that lacked contact information
- Rare events such as house fires, theft, or loss
The private database allows all submissions to be continuously validated and corrected.
Once your serial number is accepted into the database, there is no need to request or check a public list. Project 2013B automatically monitors the database and will contact you immediately when a match is detected.
Submit Your Serial Number
Your next step is simple: submit your serial number. If a matching note is discovered, both owners will be contacted and guided through the verification process.
Collectors who want to confirm which of their serial numbers are currently recorded in the Project 2013B database can request a personal report at report.2013b.com.
Unauthorized Copycat Websites and Outdated Lists
After the public list was discontinued in February 2024, an unauthorized website appeared online using the old PDF data. The site promoted itself as a "2.0 version" of the project, despite using outdated and incomplete information.
The copycat database relies on a February 2024 list containing 47,066 entries and does not include the contact information required to complete a matched pair connection.
In documented cases, collectors who used that list were unable to contact the other owner and were ultimately directed back to the official Project 2013B website to complete the match.
The official Project 2013B database currently contains over 80,000 verified serial numbers, each connected to valid contact information.
For security reasons, the database itself is not hosted online and remains privately maintained.
Helping Maintain an Accurate Database
The accuracy of the Project 2013B registry depends on collectors keeping their information up to date.
You can review all serial numbers currently associated with your email address by requesting your personal report:
The system will email your submission list within 24–48 hours so you can verify that your serial numbers are correct.
If your email address changes, please update your contact information at:
Collectors are also encouraged to add a mobile number for text notifications. Match notifications sent by text message have a significantly higher response rate than email alone.
About the Project 2013B Database
The Project 2013B database tracks submitted serial numbers from collectors who own Series 2013 $1 star notes involved in the rare duplicate-serial-number printing error.
By privately maintaining this registry, Project 2013B can verify submissions, detect matching pairs, and connect owners while protecting collectors from scams and misinformation.
The goal is simple: identify and unite the owners of these rare matched pairs while maintaining the most accurate database possible.