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Privyields

Confidential Qualified Yield Market built with Zama. Scroll through the deck directly in the browser.

01

Privyields

Confidential Qualified Yield Market

A Zama-powered demo for private access control, encrypted allocation, encrypted reward accounting, and user-controlled disclosure.

  • ZK proves qualification
  • FHE protects allocation amounts
  • cUSDC carries encrypted value
02

Problem

Qualified yield access leaks too much

Traditional qualified-investor workflows reveal identity, wealth signals, allocation sizes, and portfolio movement across many operational systems.

  • Qualification and allocation are usually coupled
  • Sensitive balances become operational data
  • Users lose control over what is disclosed
03

Solution

Separate eligibility from private capital movement

Privyields keeps eligibility as a proof, then routes allocation and reward flows through confidential token handles.

  • Asset threshold proof without publishing asset amount
  • Encrypted deposit into selected yield products
  • Encrypted rewards that only the user can decrypt
04

Architecture

Five on-chain building blocks

The demo composes a mock USDC rail, a confidential cUSDC wrapper, a qualification registry, a yield product market, and a confidential vault.

  • MockUSDC for demo funding
  • ConfidentialUSDC for encrypted balances
  • ConfidentialYieldVault for private principal and reward state
05

User Flow

From proof to encrypted claim

A user proves qualification, wraps public demo USDC into cUSDC, encrypts a deposit amount, routes it to a product, decrypts their own reward, and claims cUSDC.

  • Submit demo ZK commitment
  • Encrypt deposit with Zama Relayer SDK
  • Request and perform user decrypt for reward
06

Market

Ten yield product lanes

The app presents a multi-product marketplace: T-bills, tokenized real estate, staking, mining cashflow, private credit, basis strategies, DeFi credit, compute revenue, equities, and money markets.

  • Product metadata is public
  • User amount remains confidential
  • APR updates can be published by the strategy operator
07

Demo Scope

Built for a live hackathon demo

The current deployment runs a production Next.js frontend behind Caddy, with demo contracts and local-server mode for fast iteration.

  • Next production server on privyields.xyz
  • Server-local Hardhat demo chain
  • Sepolia path documented for live FHE flow
08

Next Steps

Move from demo to production architecture

The roadmap is to replace the demo registry with a real verifier, deploy to Sepolia or mainnet-compatible environments, and harden strategy custody and publishing permissions.

  • Wire production ZK verifier
  • Use live Zama Sepolia coprocessor contracts
  • Add operational monitoring and permissioning