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Contribution to Arbitrum Stylus Ecosystem

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Why We Chose Arbitrum Stylus?

LegacyVault is built on Arbitrum Stylus to leverage the computational efficiency of WASM. Our "Lending Pool" model requires heavy iterative mathematical calculations (daily interest looping), which would incur prohibitively expensive gas fees on a standard EVM, but are extremely cheap and fast using Rust on Stylus.

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Our Contributions

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Proving the Stylus (Rust) Use Case

We provide a real-world example of how Rust can handle complex financial logic better than Solidity.

  • Contribution: We implemented a precise Iterative Compound Interest algorithm in Rust without floating-point errors.

  • Benefit: This serves as a reference for other developers on handling heavy financial math on Arbitrum without fearing "Out of Gas" errors.

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Solving the "Lost Crypto" Problem

Billions of dollars in crypto assets are lost forever because owners pass away without passing on private keys.

  • Solution: LegacyVault presents a fully decentralized Dead Man's Switch protocol.

  • Impact: Keeps liquidity circulating within the Arbitrum ecosystem instead of becoming "Dead Capital."

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Hybrid Efficiency (Factory Pattern)

We demonstrate a unique hybrid architecture:

  • Solidity: For standard interfaces and ease of deployment (Factory).

  • Rust: For logic "brains" and heavy computation.

This shows how future DeFi projects can combine mature EVM tools with WASM performance.

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Increasing Stablecoin Utility

LegacyVault transforms USDC from a mere payment tool into a productive long-term investment instrument.

  • Feature: Auto-Compounding encourages users to store their assets on the Arbitrum network for longer periods.

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Impact Goals

  • Protected Assets: Securing $50k+ in dummy assets during the hackathon testnet phase.

  • Stylus Usage: Generating 500+ Ping & Claim transactions to stress-test the stability of Rust contracts under network load.

  • Education: Open-sourcing our Rust LendingPool implementation as a template for future Arbitrum DeFi developers.

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Ecosystem Alignment: By combining Arbitrum's Speed, Rust's Security, and a Real-World Problem (Inheritance), LegacyVault positions Arbitrum as the premier chain for secure Wealth Management solutions.

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