My Account

Set up an account.
To set up an account with EZID, please visit the contact us page and send us an email inquiry.
Edit account information
Once you have an EZID account, you can edit your name, address, phone number, and password on the My Account page. You can also designate a co-owner for the identifiers in your account.
What is co-ownership?
Co-ownership is when one EZID user account designates another EZID user account as co-owner of the first account's identifiers. This gives the second EZID user account the right to manage and edit detailed information about an identifier.

Create Identifiers

Simple create form vs. advanced create form.
In the simple create form, you can create an identifier and fill in a brief description of the object being identified. In the advanced create form, you have the additional options of adding a custom remainder (suffix) to the identifier, the ability to delay publishing of identifier, and also the capability to select different ways of describing their objects.
Which identifier should I choose?
DOIs have a brand that is well established in the scholarly publishing and archiving world. Use DOIs to register objects under good long-term management. DOIs must be accompanied by metadata that conforms to the DataCite Metadata Standard (http://schema.datacite.org/). Researchers may choose a DOI for materials being published.
ARKs have some additional levels of flexibility: they are case-sensitive; they can distinguish between special characters and adopt predictable behavior; and they can be deleted. Researchers may choose to use ARKs during the early stages of a research project and for unpublished materials associated with an object that has been registered with a DOI.
Why should I describe my object with metadata?
Adding descriptive metadata to an identifier can help others find, cite and reuse your object in the future. Metadata is information (data) about the object, such as the name of the object's creator, the date of creation, the target URL, the version of the object, its title, and so on. EZID allows you to enter metadata at the same time you request the identifier as well as later. If you are creating a DOI, you are required to supply a minimum set of citation metadata specified by DataCite. Clients who wish to enhance the prospects that their metadata will be found, cited and linked to original research are strongly encouraged to submit the Recommended as well as Mandatory set of properties when requesting DOIs.
  • Creator (The main researchers involved in producing the data, or the authors of the publication)
  • Title (A name or title by which a resource is known. Should distinguish the resource from others.)
  • Publisher (The name of the entity that holds, archives, publishes, prints, distributes, releases, issues, or produces the resource.)
  • PublicationYear (The year when the data was or will be made publicly available.)
If the completion of any of these fields presents a difficulty, use the following standard (machine-recognizable) codes. However, we recommend that you review the resulting effect on the sample citation created from the metadata provided. This is visible on the Manage page.
  • (:unac) temporarily inaccessible
  • (:unal) unallowed, suppressed intentionally
  • (:unap) not applicable, makes no sense
  • (:unas) value unassigned (e.g., Untitled)
  • (:unav) value unavailable, possibly unknown
  • (:unkn) known to be unknown (e.g., Anonymous, Inconnue)
  • (:none) never had a value, never will
  • (:null) explicitly and meaningfully empty
  • (:tba) to be assigned or announced later
  • (:etal) too numerous to list (et alia).
  • (:at) the real value is at the given URL or identifier.
An additional piece of metadata is not required, but is highly desirable and a best practice. That is:
  • ResourceType (the general type of a resource). The options are as follows:
Option Description Usage Notes
Audiovisual A series of visual representations imparting an impression of motion when shown in succession. May or may not include sound. May be used for films, video, etc, Ex: http://data.datacite.org/10.7794/USR3225/ARC.F/0000001
Collection An aggregation of resources of various types. If a collection exists of a single type, use the single type to describe it. A collection of samples, or various files making up a report. Ex: http://data.datacite.org/10.5284/1001038
Dataset Data encoded in a defined structure. Data file or files, Ex: http://data.datacite.org/10.4231/D39Z90B9T
Event A non-persistent, time-based occurrence. Descriptive information and/or content that is the basis for discovery of the purpose, location, duration, and responsible agents associated with an event such as a webcast or convention. Ex: http://data.datacite.org/10.7269/P3RN35SZ
Image A visual representation other than text. Digitized or born digital images, drawings or photographs. Ex: http://data.datacite.org/10.5060/D4RN35SD
InteractiveResource A resource requiring interaction from the user to be understood, executed, or experienced Training modules, files that require use of a viewer (e.g., Flash), or query/response portals. Ex: http://data.datacite.org/10.7269/P3TB14TR
Model An abstract, conceptual, graphical, mathematical or visualization model that represents empirical objects, phenomena, or physical processes. Modelled descriptions of, for example, different aspects of languages or a molecular biology reaction chain.
PhysicalObject An inanimate, three-dimensional object or substance. Artifacts, specimens. Ex: http://data.datacite.org/10.7299/X78052RB
Service A system that provides one or more functions of value to the end-user. Data management service, authentication service, or photocopying service.
Software A computer program in source code (text) or compiled form. Software supporting research. Ex: http://data.datacite.org/10.5524/100046
Sound A resource primarily intended to be heard. Audio recording. Ex: http://data.datacite.org/10.4231/3DZVR.1288284313124
Text A resource consisting primarily of words for reading. Grey literature, lab notes, accompanying materials. Ex: http://data.datacite.org/10.5682/9786065914018
Workflow A structured series of steps which can be executed to produce a final outcome, allowing users a means to specify and enact their work in a more reproducible manner. Computational workflows involving sequential operations made on data by wrapped software and may be specified in a format belonging to a workflow management system, such as Taverna (http://www.taverna.org.uk/).
Other If selected, supply a value for Resource Type Description. NA
What does it mean to publish an identifier?
Publication of an identifier means making the identifier, its target URL and associate metadata publicly available.

Advanced create identifier form

Should I use a custom remainder?
Custom remainders (suffixes) should be unique and opaque. By opaque, it is meant that the alphanumeric string has no meaning. EZID strongly discourages placing brand strings in the remainder because successor organizations do not often honor previous brand and name assignments.
Because it is difficult to do this manually, it is recommended that EZID generate new identifiers in order to guarantee that they are unique and opaque.
Which citation profile should I use?
DataCite: the DataCite profile is required for DOIs. It is fully documented here: http://schema.datacite.org. EZID online help is also available.
Dublin Core: the Dublin Core profile is provided for interoperability. It is fully documented here: http://dublincore.org/documents/dces/
ERC (aka, Dublin Kernel): the Electronic Resource Citation (ERC) profile is the EZID UI default for ARKs. It is fully documented here: http://dublincore.org/groups/kernel/spec/ Metadata features developed for the ARK resolver are aimed at records stored with this format first.
Three of the most important elements included in the Recommended profile are: Resource Type, Abstract and Related Identifiers. A detailed description of the Relation Type selections is below, based on the relationship of the resource being registered (A) and the related resource (B).
Option Definition Example and Usage Notes
IsCitedBy indicates that B includes A in a citation Recommended for discovery.

<relatedIdentifier relatedIdentifierType="DOI" relationType="IsCitedBy">10.4232/10.ASEAS-5.2-1</relatedIdentifier>
Cites indicates that A includes B in a citation Recommended for discovery.

<relatedIdentifier relatedIdentifierType="ISBN" relationType="Cites">0761964312</relatedIdentifier>
IsSupplementTo indicates that A is a supplement to B Recommended for discovery.

<relatedIdentifier relatedIdentifierType="URN" relationType="IsSupplementTo">http://nbn-resolving.de/urn:nbn:de:0168-ssoar-13172</relatedIdentifier>
IsSupplementedBy indicates that B is a supplement to A Recommended for discovery.

<relatedIdentifier relatedIdentifierType="PMID" relationType="IsSupplementedBy">16911322/</relatedIdentifier>
IsContinuedBy indicates A is continued by the work B <relatedIdentifier relatedIdentifierType="URN" relationType="IsContinuedBy">http://nbn-resolving.de/urn:nbn:de:bsz:21-opus-4967</relatedIdentifier>
Continues indicates A is a continuation of the work B <relatedIdentifier relatedIdentifierType="URN" relationType="Continues">http://nbn-resolving.de/urn:nbn:de:bsz:21-opus-4966</relatedIdentifier>
HasMetadata indicates resource A has additional metadata B <relatedIdentifier relatedIdentifierType="DOI" relationType="HasMetadata" relatedMetadataScheme="DDI-L" schemeURI="http://www.ddialliance.org/Specification/DDI-Lifecycle/3.1/XMLSchema/instance.xsd">10.1234/567890</relatedIdentifier>
IsMetadataFor indicates additional metadata A for a resource B <relatedIdentifier relatedIdentifierType="DOI" relationType="IsMetadataFor" relatedMetadataScheme="DDI-L" schemeURI="http://www.ddialliance.org/Specification/DDI-Lifecycle/3.1/XMLSchema/instance.xsd">10.1234/567891</relatedIdentifier>
IsNewVersionOf indicates A is a new edition of B, where the new edition has been modified or updated <relatedIdentifier relatedIdentifierType="DOI" relationType="IsNewVersionOf">10.5438/0005</relatedIdentifier>
IsPreviousVersionOf indicates A is a previous edition of B <relatedIdentifier relatedIdentifierType="DOI" relationType="IsPreviousVersionOf">10.5438/0007</relatedIdentifier>
IsPartOf indicates A is a portion of B; may be used for elements of a series Recommended for discovery.

<relatedIdentifier relatedIdentifierType="ISBN" relationType="IsPartOf">0-486-27557-4</relatedIdentifier>
HasPart indicates A includes the part B Recommended for discovery.

<relatedIdentifier relatedIdentifierType="DOI" relationType="HasPart">10.1234/7894</relatedIdentifier>
IsReferencedBy indicates A is used as a source of information by B <relatedIdentifier relatedIdentifierType="URL" relationType="IsReferencedBy">http://www.testpubl.de</relatedIdentifier>
References indicates B is used as a source of information for A <relatedIdentifier relatedIdentifierType="URN" relationType="References">http://nbn-resolving.de/urn:nbn:de:bsz:21-opus-963</relatedIdentifier>
IsDocumentedBy indicates B is documentation about/explaining A <relatedIdentifier relatedIdentifierType="URL" relationType="IsDocumentedBy">http://tobias-lib.uni-tuebingen.de/volltexte/2000/96/</relatedIdentifier>
Documents indicates A is documentation about/explaining B <relatedIdentifier relatedIdentifierType="DOI" relationType="Documents">10.1234/7836</relatedIdentifier>
IsCompiledBy indicates B is used to compile or create A <relatedIdentifier relatedIdentifierType="URL" relationType="isCompiledBy">http://d-nb.info/gnd/4513749-3</relatedIdentifier>
Compiles indicates B is the result of a compile or creation event using A <relatedIdentifier relatedIdentifierType="URN" relationType="Compiles">http://nbn-resolving.de/urn:nbn:de:bsz:21-opus-963</relatedIdentifier>
IsVariantFormOf indicates A is a variant or different form of B, e.g. calculated or calibrated form or different packaging <relatedIdentifier relatedIdentifierType="DOI" relationType="IsVariantFormOf">10.1234/8675</relatedIdentifier>
IsOriginalFormOf indicates A is the original form of B <relatedIdentifier relatedIdentifierType="DOI" relationType="IsOriginalFormOf">10.1234/9035</relatedIdentifier>
IsIdenticalTo indicates that A is identical to B, for use when there is a need to register two separate instances of the same resource <relatedIdentifier relatedIdentifierType="URL" relationType="IsIdenticalTo">http://oac.cdlib.org/findaid/ark:/13030/c8r78fzq</relatedIdentifier>

IsIdenticalTo should be used for a resource that is the same as the registered resource but is saved on another location, maybe another institution.
What is Harvesting and Indexing?
Your choice of on or off in the Harvesting/Indexing field pertains to making the metadata available for harvesting and/or indexing. This refers to inclusion in DataCite's Metadata Search store (MDS), which is accessible via an OAI-PMH interface, as well as EZID's metadata store. Third party indexers may access the metadata in these ways. If you choose "on," it does not guarantee that the metadata will be harvested or indexed, but if you choose "off," it removes the possibility. The default setting is "on."

Manage IDs

How to customize the Manage ID browse list view?
You can browse all identifiers that you have created by a browse list in the Manage ID section. You can customize this list with informational fields of your choice by clicking on the Customize view link. You may select up to 8 informational columns for the list view.
ID detail view
You can view detailed descriptive information about identifiers you have created. On this screen, you can edit and add to the information you have entered into EZID to describe the object.
Each identifier in EZID has a status. Status refers to the scope of an identifier's visibility. You can edit the status in the 'About the Identifier' section. The default value is public (visible to anyone). If the status is public, you can change it to unavailable. Also, if the status is public, you can allow or disallow harvesting. Allowing harvesting means making it available for export to external indexing and harvesting services.

Here is a summary of what the status values mean:
public: The default value. Anyone can see a public identifier.
reserved: The identifier is known only to EZID and visible only by owners. This status may be used to reserve an identifier name within EZID without advertising the identifier's existence to resolvers and other external services. A reserved identifier may be deleted.
unavailable: The identifier is public, but the object referenced by the identifier is not available. A reason for the object's unavailability may be provided. The identifier redirects to an EZID-provided "tombstone" page (an HTML page that displays the identifier's citation metadata and the reason for the object's unavailability) regardless of its target URL. The page displays the reason provided for its unavailability.

Lookup IDs

Instructions on how to enter identifier string to return results.
In order to view the details about a known identifier, you must enter the complete string.


What is a demo identifier?
Anyone can try out the EZID functionality without an account by creating demo IDs. These identifiers are valid for 2 weeks and can be used to try out features of the EZID site. Demo identifiers are designated by yellow highlighting on the Create IDs and Manage IDs screens.