Welcome to the wiki for LD4P3 Linked Data for Production: Closing the Loop. With support from the Andrew W. Mellon Foundation, LD4P3 aims to "close the loop" to create a working model of a complete cycle for library metadata creation, sharing, and reuse. LD4P3 builds on the foundational work of LD4P2: Pathway to ImplementationLD4P Phase 1, and Linked Data for Libraries Labs (LD4L Labs).

The LD4P3 partners--Cornell University, Stanford University, and the University of Iowa's School of Library and Information Science--in collaboration with Share-VDE, the Library of Congress, and the Program for Cooperative Cataloging (PCC), focus their efforts in 5 areas, detailed below.




About LD4P3 (July 1, 2020 - June 30, 2022)


Partner Resources




Project Status

Proposal Appendix: Timeline

visual timeline / status coming soon





WP 1: Expansion of the Sinopia Environment



WP2: Production LD Authority Support





WP 3: Discovery




WP 4: Expansion of PCC Involvement

  • PCC Task Group to Support Expansion of PCC Cataloging in Sinopia (charge)
  • PCC Task Group on PCC Sinopia Application Profiles (charge)
  • PCCTG1 listserv (for PCC catalogers working in Sinopia; send email to PCCTG1-request@LISTSERV.LOC.GOV and include the words “Subscribe PCCTG1” in the subject line)





WP 5: Sustainability & Community


Affinity Groups





Need permission to create new pages and edit pages in this space? Contact Michelle Futornick