Private chain-abstracted yield account

What this enables

• →Yield without publishing your net worth. An onchain savings account today is a public balance sheet — anyone can read your total holdings, every position, and the address you withdraw to. Shielded balances via STRK20 let you lend, stake, and allocate across DeFi while total holdings stay private and no position links back to your primary identity.
• →Positions that don't advertise your strategy. When you lend on one protocol and stake on another from the same public wallet, observers reconstruct your whole allocation and copy or front-run it. Private sub-accounts split each position into an unlinkable execution identity — the yield accrues, the strategy doesn't leak.
• →Deposit from anywhere, withdraw fresh. Capital arrives from Ethereum, Solana, Bitcoin, or any supported chain, routes through Starknet and private sub-accounts, and withdraws to a fresh wallet on any chain — the deposit address and the withdrawal address share no on-chain link.
• →Allocation logic that stays confidential. The Enclave runs the routing — which opportunity, what size, when to rebalance — as confidential computation, so the account can chase the best rate across protocols without broadcasting where the capital is about to move.
• →Compliance when you need it. Viewing keys let you prove source of funds or generate an income statement for a tax authority without exposing the account to the public. Confidential from surveillance, disclosable to the parties that are legally owed disclosure.

What you build

A YieldAccount helper contract holding shielded balances in the Privacy Pool and fanning capital out into per-opportunity private sub-accounts. Deposits enter via chain abstraction from Ethereum, Solana, Bitcoin, and other supported chains; capital routes through Starknet before hitting external DeFi. Allocation and rebalancing decisions run in the Enclave as confidential strategy, then execute against lending markets, staking, and yield protocols through InvokeExternal — each leg from a distinct unlinkable sub-account so aggregate holdings and individual positions never reconcile publicly. Withdrawals settle to a fresh wallet on any supported chain with no link to the deposit path. Viewing keys sit on top for scoped source-of-funds and income disclosure.

Why this isn't ether.fi Cash/Liquid

ether.fi Cash and Liquid are the closest thing to this without the privacy layer — you deposit, the vault routes across DeFi opportunities, you earn. But every position, the total balance, and the withdrawal address are public and permanently linked to the depositing wallet. Anyone can size your holdings, map your allocation across protocols, and follow your capital when it moves. This is the same product — hold, lend, stake, allocate, chain-abstracted deposit and exit — with STRK20 shielding the balances, private sub-accounts unlinking the positions, and the Enclave keeping the routing strategy confidential. Same yield surface, categorically different exposure: ether.fi tells the market your entire book; this tells it nothing.