Dermagraph v1.0.0 - Hackathon Release

Dermagraph v1.0.0

Privacy-preserving biometric identity for sybil-resistant voting on Solana.

Downloads

• best_burn.safetensors (45MB) - Pre-trained cross-finger CNN weights (94.6% cross-finger accuracy)

Quick Start

1. Clone the repo
2. Download best_burn.safetensors from this release
3. Place it in crates/biometric-extract/checkpoints/
4. Follow instructions in README.md

Hardware Requirements

Item	Cost
Raspberry Pi 4 (2GB+)	$35
R503 Fingerprint Sensor	$18
USB-C Power Supply	$8
Total	~$60

Software Requirements

• Rust toolchain
• Noir compiler (nargo)
• Sunspot CLI
• Node.js (for web app)

What's Included

Component	Description
R503 driver	Rust UART driver for fingerprint sensor
Cross-finger CNN	ResNet-18 contrastive model, 94.6% accuracy
X-Lock fuzzy extractor	Deterministic keys from noisy biometrics
Noir ZK circuit	33,700 constraints, 6s proving time
Solana programs	DAO voting with on-chain proof verification
Web app	React frontend with Privy wallet integration

Built for the Solana Privacy Hackathon, February 2026.