himess.dev

All Projects

19 projects, one thesis.

Privacy and payments belong in the same layer. These are the systems where I have pushed that idea into production.

GhostLend

Live

Confidential lending & leverage, computed on ciphertext

Zama Developer Program — Builder Track Winner

Borrow, leverage, and net lending positions with the amounts, the debt, and even the leverage ratio encrypted end-to-end. Built on Zama FHEVM, live on Sepolia — no plaintext position ever touches the chain.

SolidityFHE (fhEVM)ERC-7984Chainlink

GhostRail

Live

Confidential lending on Circle's Arc

A confidential lending layer for Arc: supply into public Morpho/Aave-style venues across USDC, ETH, BTC, EURC, and tokenized treasury while keeping your position private — only the net of each batch ever touches the public venue. Plain Solidity, USDC-native, live on Arc testnet, architected for Arc's TEE Privacy Sector.

SolidityArcCircle CCTPUSDC

MARC Protocol

Live

The privacy layer for agent payments

Zama Developer Program — Builder Track Winner

FHE-encrypted tokens, agent identity, and escrow-based commerce for autonomous AI agents. Eight contracts on Sepolia, ten integration plugins, three ERC standards (7984, 8004, 8183).

SolidityFHE (fhEVM)x402MPP

MixVM

Deployed

Cross-chain private USDC

Zero-knowledge privacy pool for USDC with LayerZero V2 messaging and Circle CCTP V2 bridging. Poseidon + Merkle + Groth16 proofs plus ECDH stealth addresses.

SolidityCircomGroth16LayerZero V2

Roil

Live

Privacy treasury on Canton Network

Feature-complete privacy treasury with a custom wallet (Passkey, Google, Email), treasury swap AMM, whitelist, DCA, and governance, all on Canton's privacy-by-default ledger.

DamlCantonNext.jsTypeScript

PrivAgent

Live

Privacy-preserving x402 on Base mainnet

Production x402 payment protocol with privacy features, live on Base mainnet. ERC-8021 builder-code attribution, 282 tests, end-to-end verified.

Solidityx402BaseTypeScript

Pendex

Shipped

FHE-powered dark pool for pre-IPO leveraged trading

Zama Developer Program — Builder Track Winner

Zama Developer Program winning dark pool. Encrypted order book for pre-IPO equity with leverage, cleared on-chain without revealing positions.

SolidityfhEVMFHETypeScript

CityPulse

Shipped

Per-API nanopayment monetization for municipal traffic

Submission-ready Circle × Arc hackathon entry. Per-API nanopayments for municipal traffic data, 3D MapLibre navigation, and an 80-vehicle Istanbul fleet simulation.

Next.jsSolidityArcCircle Nanopayments

SealTender

Shipped

FHE-encrypted sealed-bid procurement

Sealed-bid procurement protocol on Zama fhEVM. Bids stay encrypted end-to-end, the tender contract compares them homomorphically, and only the winner is revealed.

SolidityfhEVMFHETypeScript

ZK Proof Service

Live

Groth16 proof generation, billed per proof

Pay-per-proof ZK service gated by Tempo MPP. Submit a circuit, pay the fee, get the proof back. Turns heavy cryptographic infra into an API call.

TypeScriptGroth16Tempo MPPRust

FHE Identity

Shipped

Privacy-preserving identity on Zama fhEVM

Encrypted-attribute identity protocol powered by Zama fhEVM. Prove facts about yourself (age, residency, credentials) without revealing the underlying data.

SolidityfhEVMFHETypeScript

x402 on Miden

Shipped

Full stack x402 for Miden's ZK-native execution

Five-repo stack bringing x402 payments to Miden: Rust chain support, TypeScript SDK, Express / Hono middleware, agent SDK, and CLI scaffolding.

RustTypeScriptMidenx402

FHEVM Bootcamp

Shipped

4-week curriculum for Zama fhEVM

Production-ready 4-week bootcamp with 20 modules, 38 Sepolia-deployed contracts, 360 tests, a code playground, 215 quiz questions, and instructor grading rubrics.

SolidityfhEVMNext.jsTypeScript

FHEVM Skill

Shipped

Production skill for building fhEVM dApps

Code-complete Claude skill for the Zama Developer Program. 23 files, ~6,000 lines, 738+ tests, 19+ dApps validated at a 9/10 average score.

Solidity@fhevm/solidityHardhatTypeScript

OPAQUE

Deployed

FHE prediction market with multi-outcome BTC

FHE-backed prediction market supporting multi-outcome markets and hourly BTC resolution, wrapped in a Polymarket-style UI.

SolidityfhEVMNext.jsTypeScript

PrivAgent Miden

Shipped

Trustless atomic agent payments on Miden

Atomic agent-to-agent payments built on Miden's native SWAP notes. Trustless settlement without a bridge or escrow contract.

RustMiden

ArcPay

Shipped

SDK for agentic commerce on Arc

Complete TypeScript SDK for agentic commerce on Arc: AI-powered payments, escrow, streaming, stealth addresses, and 28 modules for autonomous financial agents.

TypeScriptSolidityArcx402

mppx-arc

Shipped

MPP payment method for Arc Chain

Code-complete MPP (Machine Payments Protocol) implementation for Arc with USDC-native charge and session support. Contract deployed and verified on Arc Testnet.

SolidityArcTypeScript

AI Agent NFT

Shipped

Autonomous NFT: ERC-721 + 8004 + 6551 + 2981

Autonomous NFT agent that composes four ERCs with a Sonnet 4.6 and Haiku 4.5 intelligence loop and a live Twitter / X presence.

SolidityTypeScriptClaude APITwitter API