Merritt Digital Preservation Repository – June 2025
Merritt is a digital preservation repository from the University of California Curation Center (UC3) that enables the UC community to manage, archive, and share its valuable digital content.
Welcome to the Merritt service update for June 2025
Content and Collections
Active Collections in June
The following collections were actively being expanded upon during the month of June:
- University and Jepson Herbaria Image Archive
- UC Berkeley Library Map Collection
- UC Berkeley Library Japanese Historical Maps
- UC Berkeley Library Humanities & Social Sciences
- UC Berkeley Library American Banker
- UC Berkeley Library EAL Fonoroff Movie Posters
- UC Berkeley Library EAL Tong
- UC Irvine Library Jacques Derrida Papers
- UCSC Library Bert Kaplan UCSC audio and visual recorded lectures collection UA099
- UCSC Library Lou Harrison Papers MS132
- UCSC Women of Color Research Cluster records UA098
- UCSC Library Marion Patterson Interviews MS424
Digital Preservation Community
2025 NDSA DigiPres Conference CFP
The National Digital Stewardship Alliance (NDSA) invites proposals for its annual conference, Digital Preservation 2025: Where We’re At (Digital Preservation in Uncertain Times). This virtual event will take place October 9-10, 2025. The deadline to submit proposals is July 7, 2025. More information about the conference is available on the Digital Preservation conference website. Submissions are welcomed from members and non-members alike.
What We’re Working On
One of our semi annual practices is scan all of Merritt’s holdings in the cloud to detect any inconsistencies between the system’s central Inventory database and individual object storage keys (file locations). Scanning a single cloud storage node can result in checking over 65 million files. And while a scan for a storage provider may take a few days to complete, it’s still fascinating (to me) that so many checks can take place in such little time. Once all scans are complete, the team meets to review and correct any outstanding issues with individual keys and their associated objects.
Repository Metrics for June
Holdings Snapshot
| Holdings as of July 1, 2024, fiscal year start: | 468.8 TB (one copy) |
| Holdings as of June 27, 2025 | 629.52 TB (one copy) |
| Holdings as of May 30, 2025 | 577.73 TB |
| Holdings as of March 27, 2025 | 564.84 TB |
| Holdings as of February 27, 2025 | 536.42 TB |
| Holdings as of January 30, 2025 | 509.96 TB |
| Holdings as of October 30, 2024 | 492.02 TB |
| Holdings as of September 27, 2024 | 489.33 TB |
| Holdings as of August 29, 2024 | 471.27 TB |
| Holdings as of July 30, 2024 | 470.19 TB |
Active collections in May (new files added – a single digital object can contain one or more files):
| eScholarship | 202,935 |
| University and Jepson Herbaria Image Archive | 4,385 |
| UC Berkeley Library Map Collection | 2,350 |
| UC Berkeley Library Japanese Historical Maps | 1,759 |
| UC Berkeley Library Humanities & Social Sciences | 11,957 |
| UC Berkeley Library American Banker | 141,893 |
| UC Berkeley Library EAL Tong | 62,362 |
| UC Irvine Library Jacques Derrida Papers | 11,168 |
| UC Riverside Library Nuxeo collection | 503 |
| UCSC Women of Color Research Cluster records UA098 | 730 |
Useful Links
Learn more about Merritt and the team that’s advancing CDL’s digital preservation repository.
Merritt Policies and User Guidelines
Merritt Preservation Repository
Find the team on GitHub!
Terrence Brady Senior Developer and Technical Lead
David Loy Senior Developer
Mark Reyes Senior Developer
Eric Lopatin Merritt Product Manager (at CDL)
Contact Us
Merritt administrators may be contacted at uc3@ucop.edu. Sending a message will automatically open a new issue in CDL’s internal ticketing system.
To report an urgent problem with Merritt, call the CDL Help Line at (510) 987-0555.Merritt Digital Preservation Repository