Logo for Archival Resource Key Archival Resource Keys (ARKs) serve as persistent identifiers, or stable, trusted references for information objects. Among other things, they aim to be web addresses (URLs) that don’t return 404 Page Not Found errors. The ARK Alliance is an open global community supporting the ARK infrastructure on behalf of research and scholarship. End users, especially researchers, rely on ARKs for long term access to the global scientific and cultural record. Since 2001 some 8.2 billion ARKs have been created by over 1000 organizations — libraries, data centers, archives, museums, publishers, government agencies, and vendors. They identify anything digital, physical, or abstract. ARKs are open, mainstream, non-paywalled, decentralized persistent identifiers that can be created by an organization as soon as it is registered with a NAAN (Name Assigning Authority Number). Once registered, an ARK organization can create unlimited numbers of ARKs and publicize them via the n2t.net global resolver or via their own local resolver.

centrally registered identifier data management data retrieval subject agnostic
Homepage @arks_org@fosstodon.org
John Kunze   0000-0001-7604-8041   jkunze
Pattern for Local Unique Identifiers

Local identifiers in Archival Resource Key should match this regular expression:

Example Local Unique Identifier
/53355/cl010066723   Resolve
Pattern for CURIES

Compact URIs (CURIEs) constructed from Archival Resource Key should match this regular expression:

Example CURIE
MIRIAM Namespace Embedded in LUI
The legacy MIRIAM standard for generating CURIEs with this resource annotates the namespaceEmbeddedInLUI as true. This means that you may see local unique identifiers that include a redundant prefix and delimiter (also known as a banana) and therefore look like a CURIE. For Archival Resource Key, the banana looks like ark:. Therefore, you may see local unique identifiers for this resource that look like ark:/53355/cl010066723 (instead of the canonical form /53355/cl010066723) and CURIEs for this resource that look like ark:ark:/53355/cl010066723 (instead of the canonical form ark:/53355/cl010066723). The Bioregistry will automatically strip off the banana when standardizing local unique identifiers and CURIEs.
Other https://n2t.net/e/about.html
Metaregistry Archival Resource Key

The metaregistry provides mappings between the Bioregistry and other registries. There are 4 mappings to external registries for this resource with 2 unique external prefixes.

Registry Name Registry Metaprefix External Prefix Curate
BioContext biocontext ARK
FAIRSharing FAIRSharing logo fairsharing FAIRsharing.f928f1
Identifiers.org Identifiers.org logo miriam ark
N2T Name-to-Thing logo n2t ark

A provider turns a local unique identifiers from a resource into a URI. Many providers are also resolvable as URLs (i.e., they can be used in a web browser).

The local unique identifier /53355/cl010066723 is used to demonstrate the providers available for Archival Resource Key. A guide for curating additional providers can be found here.

Name Metaprefix URI
Archival Resource Key ark http://n2t.net/ark:/53355/cl010066723
Bioregistry bioregistry https://bioregistry.io/ark:/53355/cl010066723
Identifiers.org miriam https://identifiers.org/ark:/53355/cl010066723
Name-to-Thing n2t https://n2t.net/ark:/53355/cl010066723