sesar

System for Earth & Extra-terrestrial Sample Registration

FAQ's

Getting Started

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,

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.

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.

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.

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:

  1. 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.”
  2. 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

Read more about IGSN ID’s on our dedicated page here.

A persistent identifier

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.

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)

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.

Visit our webinar recording here to learn more about leveraging SESAR to help you manage your group’s samples, data, and outputs.

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. 

We are always grateful for user feedback! Submit your suggestions here.

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.

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.

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

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.

For the latest statistics on what types of materials are in the SESAR sample catalog, visit our statistics page here.

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

Congratulations! By registering your samples for IGSN IDs, you have taken a significant step to making your samples

To learn how to print and use IGSN QR codes, follow our tutorial here.

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

Read more about IGSN ID’s on our dedicated page here.

Visit DataCite Commons and enter an IGSN to

Supporting SESAR and Getting Involved

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).

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.

FAQ's
Getting Started
Back To Top
SESAR background photograph
US National Science Foundation (NSF) Logo

Funded by US National Science Foundation (NSF).
Hosted at the LDEO of Columbia University.

AboutMission and ScopePartners and FundersNewsStatisticsTeamContact
Privacy PolicyTerms of Use

© Copyright 2026 System for Earth & Extra-terrestrial Sample Registration