How to use the Puffer Finance vault? (Restaking rewards)

Understanding the Puffer Finance Vault Architecture

1. The Puffer Finance vault operates as a non-custodial restaking protocol built on Ethereum, designed to secure EigenLayer through ETH delegation.

2. Users deposit ETH directly into the vault smart contract, which then wraps it into pufETH — a liquid restaking token representing both staked ETH and accrued restaking rewards.

3. Unlike traditional staking solutions, Puffer does not rely on centralized operators; instead, it uses a decentralized network of node operators vetted via reputation scoring and slashing protection mechanisms.

4. All vault logic is implemented in audited Solidity contracts deployed on mainnet, with public verification available via Etherscan and GitHub repositories.

5. Deposits are subject to a 7-day unbonding period before withdrawal eligibility, aligning with EigenLayer’s withdrawal queue requirements.

Step-by-Step Vault Interaction Process

1. Connect a Web3 wallet such as MetaMask or Rabby to app.puffer.finance using Ethereum Mainnet.

2. Navigate to the “Vault” tab and click “Deposit” to initiate an ETH transfer to the vault contract address.

3. Confirm the transaction in your wallet; upon success, the interface displays your pufETH balance and real-time APR derived from EigenLayer AVS fees and protocol incentives.

4. To withdraw, select “Unbond” and specify the amount of pufETH; the system queues the request and initiates the 7-day cooldown window.

5. After cooldown completion, users execute a second transaction labeled “Redeem” to receive underlying ETH plus accumulated restaking yield in ETH.

Reward Mechanics and Yield Composition

1. Restaking rewards originate from multiple sources: EigenLayer base rewards for securing AVSs, additional incentives from partnered AVSs like AltLayer and Biconomy, and protocol-owned liquidity mining programs.

2. The vault compounds rewards automatically — no manual claim actions are required, as yield accrues continuously to the pufETH balance.

3. Annual percentage rates fluctuate based on total value secured, AVS demand, and fee distribution parameters encoded in the vault’s reward distributor contract.

4. Rewards are denominated exclusively in ETH; no token emissions or governance token distributions are tied to vault participation.

5. Historical reward data is publicly queryable via subgraphs hosted on The Graph, enabling third-party dashboards and analytics tools to track performance metrics.

Security Considerations and Risk Exposure

1. Smart contract risk remains present despite multiple external audits by OpenZeppelin and Quantstamp; vulnerabilities could affect fund custody or reward calculation logic.

2. Slashing exposure exists if delegated node operators misbehave across EigenLayer AVSs, though Puffer implements partial insurance coverage funded by protocol fees.

3. Liquidity risk arises during high-demand unbonding periods when the EigenLayer withdrawal queue extends beyond standard timelines.

4. pufETH relies on off-chain oracle feeds for certain AVS health signals; manipulation of these inputs may temporarily skew reward allocation accuracy.

5. The vault does not support cross-chain transfers; pufETH is only redeemable on Ethereum Mainnet and cannot be bridged or wrapped for use elsewhere.

Frequently Asked Questions

Q: Can I stake ETH directly on EigenLayer without using Puffer?Yes. EigenLayer allows direct staking via its native interface, but doing so forfeits access to pufETH liquidity, automatic compounding, and Puffer’s node operator selection layer.

Q: Is pufETH supported by major DeFi protocols?As of current deployment, pufETH is integrated with Uniswap v3, Curve (ETH/pufETH pool), and Aave v3 as collateral, though utilization varies based on market conditions and protocol governance decisions.

Q: What happens to my rewards if I hold pufETH in a hardware wallet?Rewards continue accruing on-chain regardless of wallet type; however, claiming redeemed ETH after unbonding requires initiating transactions from a compatible Web3 wallet connected to Ethereum Mainnet.

Q: Does Puffer charge a performance fee on restaking rewards?No. Puffer Finance applies a flat 0% performance fee; revenue is generated solely from a 0.05% fee on deposits and withdrawals, collected in ETH and allocated to protocol treasury multisig.