Proposal: Reference Implementation of Settlement Pattern and Reference DEX Implementation for Canton

Development Fund Proposal Submission

Proposal file:
/proposals/reference-implementation-of-settlement-pattern-and-reference-dex-implementation.md

---

Summary

This proposal requests funding for an open-source reference implementation of a settlement pattern and a reference DEX on Canton using Daml and TypeScript. It gives the ecosystem a reusable, production-shaped example for building trading, prefunded order, and liquidity workflows directly on Token Standard V2 and registry-backed instruments, with a public testnet deployment and builder documentation.

Checklist

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

---

Notes for Reviewers

This proposal is intentionally scoped as a reference implementation, not a universal exchange framework and not a bid to replicate full Uniswap V2/V3 feature parity. Milestone 1 builds on already-defined workflow direction from TradingAppV2, registry workflows, and the proposed PR 5333 allocation extensions, while the main funded work is turning that source-driven design into a reusable open-source reference with hardening, documentation, testnet operation, and external adoption proof points.