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Blast Developer Documentation home page
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About Blast
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   GENERAL
   
   About Blast
   Using Blast

   BLAST
   
   Governance
   Tokenomics

   PHASE 2
   
   Users
   Dapps
   Points API

   BUILDING ON BLAST
   
   Network Information
   Blast Contracts
   Bridged Token Addresses
   Contract Verification
   Transaction Finality
   Bridges
   Utility contracts
   Web3 Clients
   Receive and claim ETH yield
   Receive and claim WETH and USDB yield
   Receive and claim gas fees
   Indexing Account Balances

   TOOLS
   
   Node Providers
   Block Explorers
   Analytics
   Faucets
   Oracles
   Data Indexers
   Safes
   Governance
   Misc Tools

General


ABOUT BLAST

Blast is the only Ethereum L2 with native yield for ETH and stablecoins.



Blast yield comes from ETH staking and RWA protocols. The yield from these
decentralized protocols is passed back to Blast users automatically. The default
interest rate on other L2s is 0%. On Blast, it’s 4% for ETH and 5% for
stablecoins.


WHY A NEW L2

After the merge, Ethereum provides 4% yield on ETH. On-chain T-Bill protocols
provide 5% yield on stablecoins. If users do not match or beat these rates, they
are losing money to a form of inflation.

L2s today do not have this yield. Incorporating ETH and stablecoin yield
natively requires a new L2 designed from the ground up. Blast is an
EVM-compatible, optimistic rollup that raises the baseline yield for users and
developers without changing the experience cryptonatives expect.

This yield makes it possible to create new business models for Dapps that aren’t
possible on other L2s.


HOW BLAST WORKS


AUTO REBASING

ETH itself, not WETH, STETH, or any other ERC20, is natively rebasing on the L2.
The ETH balance for EOAs is automatically rebasing. Smart contracts can opt-in
to this rebasing, making it easy to existing Dapps to deploy on Blast without
any changes.

USDB, Blast’s native stablecoin, is automatically rebasing as well. Like ETH on
Blast, USDB is automatically rebasing for EOAs. USDB is also automatically
rebasing for smart contracts. Smart contracts can opt-out from this rebasing.


L1 STAKING

Blast only became possible following Ethereum’s Shanghai upgrade. ETH yield from
L1 staking, initially Lido, is automatically transferred to users via rebasing
ETH on the L2.

In the future, the Blast community will have the power to supplement, or even
fully replace, Lido Blast-native solutions or other third party protocols.


T-BILL YIELD

Users who bridge stablecoins receive USDB, Blast’s auto-rebasing stablecoin. The
yield for USDB comes from MakerDAO’s on-chain T-Bill protocol. USDB can be
redeemed for DAI when bridging back to Ethereum.

In the future, the Blast community will have the power to supplement, or even
fully replace, MakerDAO with Blast-native solutions or other third party
protocols.


GAS REVENUE SHARING

Other L2s keep revenue from gas fees for themselves. Blast gives net gas revenue
back to Dapps programmatically. Dapps developers can keep this revenue for
themselves or use it to subsidize gas fees for users.

Using Blast
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On this page
 * Why a new L2
 * How Blast works
 * Auto Rebasing
 * L1 Staking
 * T-Bill Yield
 * Gas Revenue Sharing