YieldNote
A privacy-preserving fixed-term yield marketplace.
About
The problem it solves Yield-bearing stablecoins are powerful primitives, but today they are: * **Unstructured** — no standardized term or maturity * **Opaque** — NAV updates are public or inconsistently disclosed * **Hard to integrate** into institutional workflows * **Missing secondary participation layers** (e.g., insurers or structured risk buyers) This project addresses these gaps by introducing a privacy-preserving fixed-term yield marketplace on Canton Network that allows issuers to structure yield-bearing assets into standardized **3M / 6M / 12M products**, with controlled NAV disclosure and third-party bidding. Instead of holding raw yield-bearing stablecoins, users can access **structured, term-based products** with clearer cashflow expectations and defined lifecycle states (issue → hold → maturity → redeem), along with optional insurer participation. Key improvements include: * **Structured term mapping (3M / 6M / 12M)** for predictable fixed-income style exposure * **Privacy-enabled NAV updates**, visible only to relevant counterparties * **A third-party bidding layer**, allowing insurers or liquidity providers to submit offers * A composable framework that can evolve into: * On-chain insurance markets * Risk tranching mechanisms * Institutional RWA distribution rails Overall, it makes yield products: * More understandable * More compliant-friendly * More institution-ready * Safer through controlled, permissioned data visibility
How it's made
Challenges we ran into * **Version mismatches** between backend (Daml SDK / Canton) and frontend dependencies * Breaking changes when switching between local sandbox and DevNet environments * DevNet environment instability that disrupted deployments How I resolved them: * Aligned SDK and participant versions explicitly * Rebuilt DAR packages after dependency upgrades * Cleaned Docker state and reinitialized validator setup * Standardized environment variables across local and DevNet configs This reinforced the importance of environment reproducibility when building institutional-grade infrastructure.