Call for Participation: Hackathon on Metadata and Provenance for Knowledge Graphs

(Apologies for the previous email, the mailing list incorrectly reformatted the content)   Call for participation    Title : Hackathon on Metadata and Provenance for Knowledge Graphs    Organized by : COST Action CA23147 (GOBLIN), Working Group 2, Task 2.2    Website :  dmki-tuwien.github.io https://dmki-tuwien.github.io/goblin-hackathon/   Location : School of Computer Science, Calle Valdés Salas, S/N, Oviedo, Spain   Google maps:  maps.app.goo.gl https://maps.app.goo.gl/KhaEcdUxFRjgZdKd6     Dates : June 8-9, 2026    Overview    We invite researchers and practitioners to join a collaborative 
hackathon focused on improving the quality, context, and traceability of
 Knowledge Graphs (KGs). This event serves as a hands-on “kick-off” of 
Task 2.2 (Metadata and Provenance), exploring
 how new mechanisms like RDF 1.2 and nested triple terms (earlier 
RDF-star) can address existing limitations in metadata modeling.    Format     This two-day event is a hands-on hackathon. We focus on active, collaborative work. The general structure will include:    Introduction & Kick-off:  Aligning on goals and finalizing project teams.     Collaborative Breakout Sessions:  The core of the event, where participants work in small groups on technical challenges, modeling, or implementation.     Final Presentations & Consolidation:  Sharing results and drafting a common report on the findings.    Hackathon Themes    While we welcome participants to propose their own topics related 
to RDF 1.2, we have identified two core challenges to be tackled:   Wikibase & RDF 1.2 : Analyzing the expressiveness of the 
Wikibase data model (references, qualifiers, etc.) and how RDF 1.2 
nested statements can address them.   Best Practices & Recommendations : Identifying and defining data modeling guidelines for using RDF 1.2 to capture metadata and provenance effectively.   Participants are encouraged to align their contributions with one 
of these two primary challenges, or to propose a novel challenge they 
are prepared to lead. Please note that, while we use these proposals to 
shape the event, the organizers will define
 the final hackathon topics.    Submission & Participation    Due to the collaborative nature of the event and funding constraints, participation is limited. To apply, please complete our  docs.google.com Application Form  ( docs.google.com https://docs.google.com/forms/d/e/1FAIpQLSexPbKq2R8rAS2THvEBipUlwFPVa8PmKdDtzTh7r1X4GU47Fw/viewform ) by
 March 29, 2026, including:   Motivation and Expertise : Motivation for joining the hackathon and a description of relevant papers, tools, or projects that you have contributed to.   Position Paper : Proposing a concrete challenge to be addressed at the hackathon.    Max. 2 pages in PDF   Can have multiple co-authors, including people who do not intend to participate in the hackathon   Every co-author who intends to participate in the hackathon must submit the application form Funding & Reimbursement   A limited number of participants from Europe (approximately 13) can
 be reimbursed for travel and daily allowance via the COST Action. 
Please indicate in the form if you would still attend if reimbursement 
is not available.    Important Dates    Submission Deadline: March 29, 2026   Notification of Acceptance: April 12, 2026   Event Dates: June 8-9, 2026