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What are persistent identifiers? Features


If you already know what persistent identifiers are, but you are interested in knowing much more about what you can actually do with them, please take a look at the [Webinar: Persistent identifiers: current features and future properties by Juha Hakala.](https://www.youtube.com/watch?v=93kBLs8fojI) In this webinar Juha Hakala explains the services that are being built on top of identifier systems.