An overcollateralized vault protocol with a continuity layer built in. Mint dollar-pegged OCT against ETH or WBTC, backstop the system through the Stability Pool, and program a deterministic on-chain plan for what happens if you stop checking in.
LegacyStack is opinionated on purpose. The product is shaped by the kind of capital that asks better questions about counterparty risk, succession, and discipline.
A wallet protects keys. A protocol should protect outcomes. LegacyStack treats inactivity as a first-class event, not a bug to ignore.
OCT is minted only against locked ETH and WBTC — overcollateralized, redeemable on-chain, and governed by parameters in code, not off-chain reserve attestations.
Heirs are configured on-chain with allocation rules, inactivity windows, and per-user reserves. Execution is permissionless once the conditions are met.
Every operator surface is built for clarity at scale: vaults, collateral, debt, health, heirs, and automation, all readable in a single glance.
A consistent interaction model across vaults, borrowing, the stability pool, inheritance, automations, and redemptions. No fragmented mental models.
Open, manage, and monitor collateralized positions. Add collateral, repay, or close — all from one ledger view.
OpenMint OCT against ETH and WBTC with deterministic fees.
OpenBackstop the system and earn liquidation gains.
OpenProgram heirs, allocations, and inactivity windows on-chain.
OpenPre-deposit OCT for scheduled repay (v1). Yield-routed auto-repay on the roadmap.
OpenSwap OCT for collateral at oracle price, anytime.
OpenWe publish parameters, oracle topology, and operational defaults up front. No marketing-only numbers. Everything below is enforced by the contracts.
# Live protocol parameters protocol: name: "LegacyStack" stablecoin: "OCT" network: "sepolia" peg_target: "1.00 USD" collateral: - symbol: "ETH" min_cr: 150 liq_cr: 110 - symbol: "WBTC" min_cr: 150 liq_cr: 110 oracle: primary: "chainlink" fallback: "in-house aggregator" staleness: 3600s deviation: 5% sequencer: "l2-uptime checked" inheritance: enabled: true inactivity_window: 365d // configurable heir_cap: 10 debt_reserve: "per-user, isolated" monitoring: liquidation_bot: true alerts: ["defender", "tenderly"] soak_test: "sepolia · 7-day rolling"A loop of test, audit, fix, re-run. Engineered for the failure modes that destroyed prior vault protocols — and instrumented so an operator can prove it on demand.
Slither, full unit suite, and adversarial scenarios across borrowing, redemption, liquidation, and inheritance.
System-wide invariants — including OCT supply ≥ debt, accounting integrity, and inheritance reserves — proven across thousands of randomized actor sequences.
Chainlink primary with staleness, deviation, and sequencer-uptime checks. Fallback feed plus pause-on-stale gating before sensitive operations.
First-party keeper, OpenZeppelin Defender autotask template, and Tenderly alert rules included.
Continuous on-chain smoke and soak scripts validate every release before mainnet promotion.
Testnet only · not investment advice · audit before mainnet promotion