Blast is an Ethereum Layer 2 chain launched in 2024 by Tieshun “Pacman” Roquerre, the pseudonymous founder of NFT marketplace Blur. Blast’s defining feature is native yield — ETH bridged to Blast is automatically staked via Lido to earn Ethereum consensus rewards (~4% APY), and stablecoins bridged to Blast are automatically allocated to U.S. Treasury bill yield protocols, passing that yield through to holders. This means that bridged ETH and USDB (Blast’s native yield-bearing stablecoin) earn interest by default without any user action — the yield is built into the L2’s base layer, not a third-party protocol. The BLAST token launched in June 2024 with a large airdrop.
How It Works
Native ETH Yield:
- User bridges ETH to Blast via the official bridge
- Blast’s L2 contract holds ETH and stakes it through Lido → earns stETH yield
- The ETH balance on Blast L2 automatically rebases — user’s ETH balance on Blast grows as staking rewards accrue
- The rebasing is handled at the L2 accounting level, not by the user holding a different token
USDB (Native Yield-Bearing Stablecoin):
- User bridges USDC/DAI/USDT → converted to USDB on Blast
- USDB earns yield via T-bill protocols (originally MakerDAO’s DSR; updated to direct T-bill exposure)
- USDB balance automatically increases as yield accrues
- On withdrawal, USDB converts back to the bridged stablecoin + yield
Gas Rebates:
- Blast includes a gas fee rebate system for protocols — contracts deployed on Blast can claim a portion of the gas fees their users paid, similar in spirit to Mode’s SFS
- Protocols can choose to pocket the rebate or pass it to users
BLAST Token:
- Governance token airdropped primarily to early depositors and developers
- Distributor of protocol points accumulated during pre-launch period
- No direct staking mechanism at launch — primarily governance utility
Key Features
| Feature | Detail |
|---|---|
| Native ETH yield | Auto-staking via Lido (~4% APY rebased) |
| Native stablecoin | USDB (T-bill yield-bearing) |
| Gas architecture | Refundable gas for protocol contracts |
| Stack | Optimistic rollup (OP Stack variant) |
| Native token | BLAST |
| Key differentiator | Default yield on all bridged ETH and stables |
Supported Chains
- Ethereum (L1 settlement)
- Blast L2 (EVM-compatible)
History
- November 2023: Blast announced by “Pacman” (Blur founder); one-way bridge opens with no withdrawal initially — $1B+ TVL accumulates in holding period
- February 2024: Blast mainnet launches; two-way bridge opens
- June 2024: BLAST token launches; large airdrop to early depositors and developers
- 2024: Ecosystem of DeFi protocols builds on Blast (Thruster, Juice, Particle, etc.)
Common Misconceptions
“Blast is just a normal L2 with a points program.”
Blast’s native yield is a persistent, ongoing structural feature — not a temporary airdrop campaign. The ETH rebasing and USDB yield accrue indefinitely for bridged assets, funded by real underlying yield sources (Lido staking rewards, T-bills), not by token emissions.
“USDB is an algorithmic stablecoin.”
USDB is backed by real U.S. Treasury yield protocols (and previously MakerDAO’s DAI Savings Rate), not by algorithmic mechanisms. It is a fiat-backed yield-bearing stablecoin, not comparable to failed algorithmic designs like UST.
Criticisms
- One-way bridge at launch: The initially locked bridge (ETH could go in but not come out for months) drew widespread criticism as a risky design that concentrated large sums in an unproven system before mainnet was live
- Centralized control: Blast’s admin keys at launch controlled how bridged ETH was deployed — a significant trust assumption over a multi-billion dollar pool
- Lido dependency: Blast’s native yield depends entirely on Lido for ETH staking — if Lido suffers a slashing event, Blast’s base yield is affected
- Token distribution controversy: The BLAST airdrop allocation and unlock schedule during June 2024 were criticized as heavily favor insider allocations relative to community
- Ecosystem quality: Some Blast ecosystem protocols launched poorly-audited contracts chasing the Blast points meta, leading to exploits early in the mainnet lifecycle
Social Media Sentiment
Blast generated more controversy than any other L2 launch in 2023-2024. The locked bridge mechanic was called “irresponsible” and “coercing TVL” by prominent developers and researchers. Supporters countered that users freely chose to deposit and the yields were genuine. The BLAST airdrop stirred both excitement and anger, with many users feeling the points-to-BLAST conversion was lower than implied. Despite controversy, Blast achieved genuine adoption in NFTs and DeFi, partly due to Thruster and Juice Finance protocols attracting organic usage.
Last updated: 2026-04
Related Terms
Sources
- Blast Network Documentation — docs.blast.io. Technical specifications for Blast’s native yield mechanics, USDB design, and gas rebate system.
- “Blast: One-Way Bridge Controversy and Design Tradeoffs” — L2Beat (November 2023). Analysis of Blast’s pre-mainnet bridge design, TVL accumulation without withdrawal, and security model.
- BLAST Token Airdrop Analysis — Dune Analytics (June 2024). On-chain breakdown of BLAST token distribution, recipient categories, and airdrop volume.
- MakerDAO DSR Integration with Blast — MakerDAO Forum (2023). Technical proposal for routing Blast stablecoin reserves through MakerDAO’s Dai Savings Rate for T-bill-equivalent yield.
- “Comparing L2 Native Yield Models” — Delphi Digital (2024). Comparison of Blast’s default yield approach against other L2 incentive models, with projections for TVL sustainability as T-bill rates change.