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On joining the DOI Foundation, a unique DOI prefix is available for experimental purposes for each member. The number of DOI names allocated with this experimental prefix will be subject to review and may be limited at the discretion of the DOI Foundation. If further DOI prefixes are required for non-experimental purposes, members must work with one of the Registration Agency members. Trial prefix use is particularly intended for those members wishing to develop applications and move to later Registration Agency status.

Contact the DOI technical support service provider (doi-admin@doi.org) to request one, and discuss possible usage.