FAQ's
Getting Started
What is SESAR?
SESAR is a digital data repository and sample metadata management system. We support individual researchers, museums, and collections across the globe to store information about their samples and to surface their sample collections and sample metadata for data discovery. Our data archiving and discovery services help researchers comply with funder mandates for FAIR data. We help organizations save time and money by providing a purpose-built catalog for users to find samples in their collections - instead of sinking time and money to developing and maintaining their own sample search and discovery interfaces, we help surface and connect sample collections and their derived data products,
Does SESAR manage physical collections?
No. SESAR provides digital archiving services for sample metadata, a sample management system, integrations to third party applications (e.g., StraboSpot), and a searchable catalog of sample records.
Is SESAR just for geology samples?
SESAR was founded in 2004 under a Small Grant for Exploratory Research (SGER) from the U.S. National Science Foundation. The grant established SESAR and the birth of the IGSN (at that time, the International Geo Sample Number). With increased community interest, SESAR has expanded to support archival of userful, rich metadata for samples in the archaeology, material science, and biology communities.
Who runs SESAR?
SESAR is developed and operated by the Geoinformatics Research Group at the Lamont-Doherty Earth Observatory, with support from additional collaborators. See the full team here.
How is SESAR funded?
SESAR is currently funded through a Cooperative Agreement with the NSF as part of the broader IEDA2 Data Facility. SESAR has had a remarkable history of 20+ years of continuous funding through the NSF, demonstrating its utility, value, and usability for the national and international science community.
Since SESAR is grant-funded, is my data safe if SESAR’s grant money ever runs out?
SESAR has an impressive track-record of more than 20 years of continuous operation. Nevertheless, SESAR has contingency plans to ensure your sample records are persistent regardless of SESAR’s future existence. We ensure persistence of your data in the following ways:
- By registering your samples for IGSN ID’s, a portion of your metadata is automatically cataloged at DataCite. You can learn more about what data we provide DataCite on our website here. Alternatively, to see what your data looks like at DataCite, visit DataCite Commons and enter one of your IGSN ID’s in the search bar under “Works.”
- Our database is backed up in triplicate - if SESAR’s funding were to ever cease, we would negotiate the transfer of data to a partner data repository that shares the same ethos as SESAR and ensure clear and thorough communication with our users in advance of any such transfer.
Data Upload and IGSN ID Registration
What is an IGSN ID?
Read more about IGSN ID’s on our dedicated page here.
What is a persistent identifier (PID)?
A persistent identifier
Is SESAR the only place I can obtain an IGSN ID for my samples?
No! SESAR is one of numerous IGSN allocating agents worldwide. These are entities that have the technical infrastructure and are registered and approved via DataCite to mint IGSN IDs for their users.
Why should I register my samples with SESAR?
There are numerous benefits to registering samples with SESAR, including:
- A place to securely archive your sample metadata; SESAR is a data repository for key information about your samples or specimens. Keep all of your sample metadata in one place and never worry about a missing field book or numerous spreadsheets again!
- Make your samples FAIR (findable, accessible, interoperable, and reusable)
What kinds of samples can I register with SESAR?
Can I register a site locality such as a well or drill site for an IGSN ID?
Yes. Many of our core collection organizational users will first register a parent IGSN ID for a well or drill site and register segments of core as child IGSN IDs.
I am a PI and manage a lab group. How should I use SESAR?
Visit our webinar recording here to learn more about leveraging SESAR to help you manage your group’s samples, data, and outputs.
What is a SESAR code?
What is a controlled vocabulary?
A controlled vocabulary is a standardized, pre-defined set of terms used to categorize information. SESAR users encounter these while registering sample data. Controlled vocabularies may not be perfect for all use cases, but they are important in enabling search and filter functionalities for discovery.
Where can I provide feedback on a controlled vocabulary or missing metadata field that would be useful for my community or sub-discipline?
We are always grateful for user feedback! Submit your suggestions here.
What if I don’t want my sample records to be public?
SESAR supports embargo of sample records for up to two years. Simply select an embargo date when submitting sample data or visit your MySESAR account to edit an existing embargo date.
Can I attach photos to my sample records?
Yes! SESAR currently allows upload of . Users report that sample photos significantly increase the utility and usability of the sample records during sample searching or browsing - we encourage uploading of hand samples, key field sampling images, or any other contextual photos.
Do my sample records need to be in English?
SESAR does not currently have capacity to support translation services, and we strongly suggest that you submit your sample data in English. However, we will accept submissions in any language that uses the Latin alphabet.
Searching Samples
Can I upload my field notebook scans to SESAR?
We recommend uploading field notebooks scans to an institutional repository or a generalist repository and adding a link to it in your sample metadata with SESAR. Some generalist repositories support linking of IGSNs.
What types of samples are findable in SESAR?
For the latest statistics on what types of materials are in the SESAR sample catalog, visit our statistics page here.
Are all of the samples visible in the SESAR catalog available for reuse?
SESAR provides a digital archive for sample metadata and a searchable catalog for those sample records. The presence of a sample record in the SESAR catalog does not guarantee the availability of sample material. Users should use the contact feature on a sample record landing page to get in touch with the sample steward or physical archive to inquire about the availability of a sample for reuse.
Using IGSN IDs
I have IGSN IDs for my samples. Now what?
Congratulations! By registering your samples for IGSN IDs, you have taken a significant step to making your samples
How do I print and use IGSN ID QR codes?
To learn how to print and use IGSN QR codes, follow our tutorial here.
I published a paper with IGSN IDs and they were not hyperlinked in the final print version. Why did this happen?
Scholarly publishers have complex journal-specific workflows, training procedures, and policies and varying awareness of persistent identifiers for samples.
SESAR is aggregating examples of this to work with publishers and editors to improve this. You can help us by providing the DOI for your paper using this form.
IGSNs IDs, IGSN e.V., and DataCite
What is an IGSN ID?
Read more about IGSN ID’s on our dedicated page here.
What is the IGSN e.V.?
Does all of my sample metadata get pushed to DataCite when the IGSN ID (DOI) is registered on my behalf?
What is the advantage of IGSNs IDs being DOIs?
DOIs cost money. Do I have to pay for IGSNs I register with SESAR?
Where can I see what my IGSN records look like at DataCite?
Visit DataCite Commons and enter an IGSN to
Supporting SESAR and Getting Involved
Who develops best practices for persistent identifiers for samples?
Do you know of another group working on best practices for sample identifiers? We would love to be connected via our email (info@geosamples.org).
Does SESAR collaborate on grants with external collaborators?
YES! We are eager to collaborate with you or your community on software improvements, digital tool development, sample metadata profiles for disciplinary communities, and more. If you have a need and SESAR might be able to collaborate with you to solve it, we are eager to chat. Reach out to us at info@geosamples.org.


