Solutions

LegacyVault: Security for Tomorrow, Growth for Today

We combine a trustless "Dead Man's Switch" with an automated high-yield lending pool to ensure your assets are never lost and never idle.

How We Solve It

1

Trustless Dead Man's Switch

LegacyVault eliminates the need for lawyers or third-party custodians. Using our Rust-based Logic Contract, users define a "Heartbeat" interval. As long as you "Ping" the contract, you retain control. If silence exceeds the interval, the protocol autonomously executes the inheritance logic.

2

Active Wealth Preservation (Lending Pool)

In traditional setups, inheritance funds sit in a cold wallet collecting dust. In LegacyVault, your deposited assets are automatically routed to our Internal Lending Pool.

• Compound Growth: Assets earn 1% daily compound interest while locked.

• Beneficiary Benefit: When the funds are finally claimed, your loved ones receive the principal plus significant accrued interest.

3

Stylus-Powered Efficiency

We reject the high gas costs of complex inheritance contracts on Ethereum Mainnet. By building the core logic on Arbitrum Stylus (Rust):

• Lower Fees: Complex date calculations and state checks are processed cheaply in WASM.

• Enhanced Safety: Rust's memory safety guarantees protect the vault from common smart contract vulnerabilities.

4

Hybrid Factory Architecture

We solve the scalability issue using a Solidity Factory coupled with Rust Logic.

• Factory: Deploys cheap EIP-1167 proxies for every user.

• Logic: All proxies point to a single, highly optimized Rust "Brain".

This ensures that creating a vault is gas-efficient (createVault), while the heavy lifting is handled by the robust Rust backend.

5

Frictionless Succession

The beneficiary needs no permission from a judge or bank. Once the "Heartbeat" expires, the Claim Function becomes public for the designated address. One click transfers the entire vault balance + interest directly to their wallet.

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From Passive to Proactive

Before LegacyVault	With LegacyVault
Risky: Keys lost = Wealth lost forever.	Secure: Automated transfer if you are inactive.
Idle: Assets sit in a wallet doing nothing.	Productive: Assets grow via Lending Pool (1% daily).
Expensive: Lawyers and notaries take a cut.	Efficient: Low-cost execution via Arbitrum Stylus.
Slow: Probate takes months or years.	Instant: Immediate access upon timer expiration.

The Result: A protocol that acts as an unbreakable safety net for your family, while functioning as a high-yield savings account for you while you live.