15 Association of Research Libraries Research Library Issues 302 — 2021 research outputs.14 The project builds interoperability between pieces of critical research infrastructure—DMPs, research practice, DOIs, and publications—to facilitate the advancement and adoption of open science. Through the Networked DMP, the project will promote the quantification of productivity of field stations, which has proven difficult despite qualitative assessments of the immense value of these centers of research. How Libraries Can Support the Networked DMP While the work to develop a Networked DMP is ongoing, libraries can now promote the adoption of this new best practice in data management by encouraging researchers at their universities to get DMP IDs. Currently, DMP-IDs can be generated via the DMPTool or Zenodo, or through DataCite member services.15 As we work to build a more connected ecosystem, there will be increasing ways that researchers will be able to utilize their DMP-ID and cite this ID when publishing outputs related to their project. Conclusion: The Path to Unlocking Discovery This article has outlined specific opportunities that research libraries can pursue to incorporate or advocate incorporating persistent identifiers into workflows, infrastructures, and policies. Extending the premise that PIDs can “unlock discovery,” we have discussed ways to choose and leverage identifiers to best achieve this goal. We emphasize that PIDs alone are not the solution, but rather that strategies and policies regarding PIDs should focus on what metadata is used with PIDs, and how PIDs are connected to each other. A core principle in this vein is one of openness—the openness of the identifiers and metadata themselves, as well as of the infrastructure in which they are embedded. Scholarly infrastructure should be open from the inside out, and PIDified from beginning to end. With open metadata and open infrastructure, we can build connections and support the long- term stability and usability of scholarship to promote open knowledge practices, save time and resources, and develop more meaningful insights about research.