Proposal: Concordia

Development Fund Proposal Submission

Proposal file: /proposals/concordia.md

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Summary

This proposal submits Concordia, an open-source reference implementation for privacy-preserving multi-party allocation and decision workflows on Canton. It delivers a reusable core for submission, aggregation, settlement, and expiry handling, plus governance and auction modules with reference applications and documentation for reuse and extension.

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Checklist

• [x] Proposal file added under /proposals/
• [x] Milestones and funding amounts defined
• [x] Acceptance criteria included
• [x] Alignment with Canton priorities described

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Notes for Reviewers

This proposal is championed by IntellectEU and Jonathan Mayeur.

This proposal is intended to contribute reusable ecosystem infrastructure.

The first release focuses on a bounded but extensible CAP core and two proving domains: governance and auctions. The core is designed to sit above existing Canton asset and settlement infrastructure so teams can reuse allocation and decision mechanics without replacing the token and transfer layers they already depend on.

The reference applications and documentation are intended to make the implementation practical for external Canton teams to evaluate, adopt, and extend.