HyperArc

HyperArc is a cross-border RWA primary issuance and settlement platform built on Circle’s Arc Layer-1, designed to make global investment access simple, fast, and capital-efficient using stablecoins.

Instead of directly trading stocks on secondary markets, HyperArc focuses on primary issuance of tokenized economic interests backed by real-world assets such as equities, ETFs, or SPV-managed portfolios. Issuers (SPVs) create compliant investment products on-chain, while investors subscribe using USDC with instant finality on Arc. Ownership is represented as non-transferable economic interest units, ensuring regulatory flexibility while preserving transparent on-chain accounting.

The platform leverages Circle Developer-Controlled Wallets for secure user custody abstraction, Circle Gateway for seamless cross-chain USDC funding, and Arc’s native USDC settlement for fast, low-cost transactions. Investors can fund their Arc wallets from multiple EVM chains, subscribe to products, and receive dividends directly in USDC, all without managing private keys.

HyperArc demonstrates how stablecoin-native infrastructure and tokenized economic rights can unlock global capital markets, reduce FX friction, and enable compliant, programmable finance for the next generation of cross-border investments.

HyperArc is built as a full-stack, stablecoin-native investment platform developed end-to-end by a single developer. The backend is implemented in TypeScript using NestJS and acts as the orchestration layer between Circle’s infrastructure, on-chain smart contracts, and the frontend application. User authentication is handled via Sign-In with Ethereum (SIWE, EIP-4361), where users connect with MetaMask, sign a structured message, and receive a JWT after backend verification. This JWT is required for all platform operations and enables secure, session-based access control while preserving wallet-based identity. ENS domains and sub-domains are resolved and displayed to improve user recognition and trust.

Smart contracts are written in Solidity and deployed to Arc Testnet using Foundry. The core contract implements a primary issuance model for tokenized economic interests, allowing users to subscribe to compliant investment products using USDC without engaging in secondary market trading. All settlement occurs natively on Arc, leveraging fast finality and predictable execution.

Circle Developer-Controlled Wallets are used to abstract wallet management while maintaining EOA compatibility across ARC-TESTNET, ETH-SEPOLIA, BASE-SEPOLIA, and AVAX-FUJI. Cross-chain USDC funding is enabled via Circle Gateway, allowing users to move capital seamlessly from supported EVM networks into Arc for investment. A key hacky element is the tight integration between Circle’s wallet execution APIs and on-chain contract calls, enabling approval, subscription, and settlement flows to be executed programmatically without requiring users to manage private keys or gas complexity.

The platform is designed with compliance in mind, focusing on primary issuance, clear ownership accounting, and controlled investment flows, making cross-border participation simple, accessible, and regulation-aware.