How to bridge to Blast? (L2 yield guide)

Understanding Blast as an Ethereum Layer 2

1. Blast is a native yield-bearing Layer 2 blockchain built on Ethereum’s optimistic rollup architecture.

2. It introduces native restaking incentives by automatically compounding ETH and stablecoin yields directly on-chain.

3. The protocol deploys idle assets into decentralized lending protocols and liquid staking derivatives without requiring user intervention.

4. Blast uses the Optimism Bedrock stack, ensuring full EVM equivalence and seamless compatibility with existing Ethereum tooling and dApps.

5. Every deposit of ETH or USDB into Blast’s native bridge triggers automatic yield accrual from day one.

Bridging ETH to Blast

1. Users must connect a Web3 wallet such as MetaMask to the official Blast bridge at app.blast.io.

2. Select ETH as the source asset and confirm the network is set to Ethereum Mainnet before initiating the transfer.

3. Enter the desired amount and review the estimated gas fee, which fluctuates based on Ethereum network congestion.

4. After signing the transaction, users wait for the seven-day challenge period required by optimistic rollup security assumptions.

5. Once finalized, ETH appears in the Blast wallet with yield generation beginning immediately upon credit.

Bridging Stablecoins to Blast

1. USDB — Blast’s native bridged stablecoin — is minted 1:1 against deposited USDC or DAI on Ethereum.

2. Depositing USDC triggers an on-chain swap to USDB via integrated Curve pools before minting on Blast.

3. The bridge enforces strict over-collateralization checks and real-time oracle price feeds to maintain peg integrity.

4. Yield on USDB accrues through direct integration with Aave V3 and Compound on Blast, distributing interest hourly.

5. Withdrawals back to Ethereum require initiating a burn on Blast followed by a seven-day withdrawal window before claiming on L1.

Yield Mechanics and Distribution

1. ETH yield stems from EigenLayer restaking, where Blast deposits ETH into AVSs selected for high uptime and slashing resistance.

2. Stablecoin yield is sourced from lending protocols deployed natively on Blast, with rates adjusted dynamically based on utilization ratios.

3. All accrued yield is compounded automatically every hour and reflected in real-time wallet balances.

4. No separate claim transaction is needed — yield is non-transferable until withdrawn but always visible in the dashboard.

5. Blast does not issue yield-bearing tokens; instead, balance growth is represented as increasing base asset units.

Security Considerations and Verification

1. The Blast bridge relies on a multisig guardian composed of five independent signers, each operating air-gapped hardware wallets.

2. All bridge contracts have undergone three separate third-party audits by OpenZeppelin, CertiK, and Trail of Bits.

3. Users can verify finality status of deposits using the Blast Explorer, which displays block confirmation depth and challenge window countdowns.

4. Reorg protection is enforced via Ethereum’s canonical chain detection logic, rejecting blocks from minority forks.

5. Blast’s sequencer operates under decentralized governance proposals, though current operation remains centralized pending DAO activation.

Frequently Asked Questions

Q: Can I bridge tokens other than ETH and USDC?Currently, only ETH, USDC, and DAI are supported for bridging. Other ERC-20 tokens must be swapped post-bridge using Blast-native AMMs.

Q: Why does ETH bridging take seven days?The delay is mandated by the optimistic rollup fraud-proof window, during which any validator may submit a challenge if incorrect state transitions are detected.

Q: Is my yield subject to impermanent loss?No. Blast’s native yield model does not involve liquidity provision or LP token staking. Yield derives solely from lending and restaking protocols.

Q: What happens if I disconnect my wallet after bridging?Yield continues accruing regardless of wallet connection status. Balances remain on-chain and accessible anytime via private key recovery.