ProofHire

Privacy-first hiring powered by Zero Knowledge Proofs on the Midnight Network.

Prove your credentials without exposing your data. Hire on proof, not paper.

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Run on Web

Open ProofHire Website for Demo

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Contract

contract: mn_d859b6887d635fd543f1134bc669c136051910eaf66ec2827c91740bce

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What is ProofHire?

ProofHire is a decentralized hiring platform built on the Midnight Network. Candidates submit their CV details, generate Zero Knowledge Proofs for each section (education, skills, experience, certifications), and deploy a smart contract to the Midnight Preview testnet. Recruiters can verify any credential claim on-chain without ever seeing the raw data.

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How Zero Knowledge is Used

Each section of a talent's CV gets its own ZK proof commitment:

CV Section	Proof	What Recruiter Sees
Education	proofOfSchool	Verified / Not Verified
Skills	proofOfSkills	Verified / Not Verified
Experience	proofOfExperience	Verified / Not Verified
Certifications	proofOfCertifications	Verified / Not Verified

The Compact smart contract uses persistentHash to create commitments. Credentials go through witness functions and never touch the public ledger. Only the commitment hash (the mathematical proof) is stored on-chain via disclose().

Recruiters call verifySchoolProof(commitment) etc. on the deployed contract. The circuit returns true or false — the raw data is never exposed.

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Tech Stack

• Frontend: Next.js 15, Tailwind CSS, TypeScript
• Blockchain: Midnight Network (Preview Testnet)
• Smart Contract: Compact language (proof-hire.compact)
• Wallet: Midnight Lace Wallet (DApp Connector API v4.0.1)
• Deployment: Vercel

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Install Dependencies

git clone https://github.com/yourusername/proofhire
cd proofhire
npm install

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Run Locally

cp .env.example .env.local
npm run dev

Open http://localhost:6300

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Configure Lace Wallet

1. Install Midnight Lace Wallet
2. Open Lace → Settings → Midnight
3. Set Network to Preview
4. Set Proof Server to Remote
5. Click Save
6. Refresh the ProofHire page

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Get Test Tokens

1. Visit Preview Faucet to get tNIGHT
2. Open Lace → Tokens → Click Generate tDUST for transaction fees

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Deploy Smart Contract on Midnight

Prerequisites

• Compact Compiler installed
• Lace Wallet configured for Preview network

Compile

cd contracts
compact compile proof-hire.compact managed/proof-hire

Copy Keys to Frontend

cp -r contracts/dist/managed/proof-hire/keys ./public/keys
cp -r contracts/dist/managed/proof-hire/zkir ./public/zkir

The frontend deploys the contract automatically when a talent saves their CV. The contract address is shown in a modal and saved to localStorage.

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Deploy Frontend on Vercel

1. Push to GitHub
2. Go to vercel.com → New Project → Import repo
3. Add environment variables from .env.example
4. Deploy

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How to Test Proof Generation

1. Go to /talent/auth and connect Lace Wallet
2. Complete the onboarding form
3. On the Education step, click Generate School Proof — watch the ZK animation
4. Do the same for Experience and Skills steps
5. On the final step, click Save CV & Go Live
6. A modal shows your deployed contract address
7. Copy and save it

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How to Test Verification

1. Go to /recruiter/auth and connect a different Lace Wallet (or same for demo)
2. Complete recruiter onboarding
3. Go to Talent Marketplace
4. Find a talent with Open for Work status
5. Click Expand CV
6. Click Verify next to any section (School, Skills, Experience)
7. Watch the on-chain verification run
8. See green checkmark ✓ with "Verified on Midnight Network"

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Demo Steps for Hackathon Judges

As Talent

1. Open /talent/auth → Connect Lace Wallet
2. Fill in personal info → Click Next
3. Fill in education → Click Generate School Proof → watch ZK animation → Next
4. Fill in experience → Click Generate Experience Proof → Next
5. Add skills → Click Generate Skills Proof → Next
6. Skip certifications → Next
7. Add hobbies → Next
8. Review summary → Click Save CV & Go Live
9. Copy the contract address from the modal
10. Toggle Open for Work to ON → Save

As Recruiter

1. Open new browser tab or incognito → /recruiter/auth → Connect Lace Wallet
2. Fill in company onboarding form
3. Go to Talent Marketplace
4. See the talent you just created (filtered by Open for Work)
5. Click Expand CV
6. Click Verify on School → see "Verified on Midnight Network" ✓
7. Click I Want to Hire This Person
8. Go to Saved Candidates → Send interview link
9. Mark as Hired → Check Hired Talent page

Back as Talent

10. Go to /talent/interviews → see the company and Calendly link
11. Go to /talent/hired → see hired status

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Smart Contract Reference

File: contracts/proof-hire.compact

Circuit	Description
submitSchoolProof()	Generates and stores education commitment
submitSkillsProof()	Generates and stores skills commitment
submitExperienceProof()	Generates and stores experience commitment
submitCertificationsProof()	Generates and stores certifications commitment
saveCV()	Sets CV status to LIVE (requires all proofs)
verifySchoolProof(commitment)	Returns Boolean — on-chain verification
verifySkillsProof(commitment)	Returns Boolean — on-chain verification
verifyExperienceProof(commitment)	Returns Boolean — on-chain verification
verifyCertificationsProof(commitment)	Returns Boolean — on-chain verification
clearProfile()	Resets all proof state

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Network

Service	Endpoint
Node RPC	https://rpc.preview.midnight.network
Indexer	https://indexer.preview.midnight.network/api/v3/graphql
Proof Server	https://proof-server.preview.midnight.network
Faucet	https://faucet.preview.midnight.network

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Project Structure

proofhire/
├── app/
│   ├── page.tsx                    # Landing page
│   ├── talent/
│   │   ├── auth/page.tsx           # Talent login
│   │   ├── onboarding/page.tsx     # Multi-step CV form + ZKP
│   │   ├── dashboard/page.tsx      # Talent dashboard
│   │   ├── profile/page.tsx        # Edit CV
│   │   ├── proofs/page.tsx         # View ZK proofs
│   │   ├── contracts/page.tsx      # Deployed contracts
│   │   ├── interviews/page.tsx     # Interview requests
│   │   ├── hired/page.tsx          # Hired status
│   │   └── settings/page.tsx       # Wallet + account
│   └── recruiter/
│       ├── auth/page.tsx           # Recruiter login
│       ├── onboarding/page.tsx     # Company setup
│       ├── dashboard/page.tsx      # Recruiter dashboard
│       ├── marketplace/page.tsx    # Talent marketplace + verify
│       ├── candidates/page.tsx     # Saved candidates
│       ├── hired/page.tsx          # Hired talent
│       ├── team/page.tsx           # Team access
│       └── settings/page.tsx       # Company settings
├── components/
│   ├── WalletConnect.tsx           # Lace wallet integration
│   ├── TalentSidebar.tsx
│   ├── RecruiterSidebar.tsx
│   ├── ContractModal.tsx           # Contract address modal
│   └── RecruiterPages.tsx          # Shared recruiter pages
├── lib/
│   ├── types.ts                    # TypeScript types
│   ├── storage.ts                  # localStorage utilities
│   └── midnight-utils.ts           # ZKP + wallet utilities
└── contracts/
    └── proof-hire.compact          # Midnight smart contract

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Privacy Architecture

Talent fills CV form
        ↓
Data stays in browser memory only
        ↓
ZK proof generated locally per section
        ↓
Only commitment hash goes to Midnight chain via disclose()
        ↓
Contract deployed → address shared with recruiter
        ↓
Recruiter calls verifyXProof(commitment) on chain
        ↓
Circuit returns true/false — zero raw data exposed

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DEX