Designed to be used by humans as well as machines, DOIs identify objects persistently. They allow things to be uniquely identified and accessed reliably. You know what you have, where it is, and others can track it too.

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The total DOI resolutions to date is calculated using actual number of DOI resolutions recorded up until yesterday and the average resolution rate recorded over the past 24 hours (currently this is )

The Research Activity Identifier (RAiD) has joined the DOI Foundation as a General Member. RAiD is a persistent identifier and global registry dedicated to research projects. It is governed by ISO standard 23527:2022 with the Australian Research Data Commons (ARDC) as the Registration Authority and lead developer of the system. RAiD provides a system to store, update, share, and link project information across the research community. ARDC and DataCite have partnered to deliver RAiD services. RAiD is being integrated with European Open Science Cloud infrastructure via the FAIRCORE4EOSC program.

We are an international community of communities bound by a common interest in persistent infrastructure. So far, we have welcomed agencies that manage communities spanning entertainment, standards, the built environment, natural history collections, scholarly communications, and research data.

A DOI name is a digital identifier of an object, any object — physical, digital, or abstract. DOIs solve a common problem: keeping track of things. Things can be matter, material, content, or activities.