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Blast’s regular withdrawal interface deadline ends today; the official bridge still holds tens of millions of dollars

Blast reached the deadline for its regular withdrawal website interface on October 26, 2026. After that, users can still withdraw assets, but they must interact directly with the bridge contract on Ethereum mainnet instead of using the regular interface. Blast’s website was still showing the withdrawal entry and a notice that the network is being gradually shut down at the time of reporting, and it has published contract-level withdrawal guides for ETH, USDB, and BLAST.

The related steps include: initiating a withdrawal on the Blast network, waiting for the corresponding state root to be submitted to Ethereum, submitting a withdrawal proof through the OptimismPortal contract, and, after a one-day challenge period, executing the final confirmation transaction. Blast announced on October 2 that it would gradually shut down the Layer 2 network, saying operating costs exceeded revenue and that there was no credible path to economic sustainability. The team said it would first withdraw the related assets from Lido, which is expected to take about a week during which withdrawals are temporarily unavailable, and then shorten the withdrawal delay to 24 hours.

On October 2, the official cross-chain bridge held about $63.5 million in assets. As of October 21, the Ethereum-side yield management contract holding the ETH behind Blast still held about 13,299 ETH (about $32.5 million), down by about one quarter from its balance before shutdown. L2BEAT data showed that as of October 26, a large amount of ETH and assets such as USDB were still in a bridged state. On-chain DeFi TVL recorded by DefiLlama was significantly lower than the scale of bridge assets because it mainly counts application deposits rather than all bridge balances.

Original sources:

  1. Title: Blast's Exit Window Closes Oct. 26. Its Ethereum Vault Still Holds 13,299 ETH Publisher: 0x News Publication date: 2026-10-21 URL: https://0xzx.com/en/post/pst_d9ec108d5edebd7a Source nature: media report Verification status: full text read this time (2026-10-26) Supporting content: October 26 is the deadline for the regular interface; after that, users must directly call the Ethereum bridge contract; on October 21 the ETH yield management contract still held 13,299.15 ETH (about $32.5 million); the official October 2 announcement and 24-hour delay arrangement.

  2. Title: Blast Plans Layer 2 Shutdown With $63.5 Million Still in Bridge Publisher: TokenPost Publication date: 2026-10-02 URL: https://www.tokenpost.com/news/technology/26420 Source nature: media report Verification status: relevant passages read this time (2026-10-26) Supporting content: when the shutdown was announced on October 2, the official bridge held about $63.5 million; the regular interface deadline is October 26, and after that assets can still be withdrawn through the contract.

  3. Title: BLAST Withdrawal Guide - Blast Developer Documentation Publisher: Blast (official documentation) Publication date: unknown (page accessible) URL: https://metalayerlabs.mintlify.app/withdrawals/blast-from-contracts Source nature: official document Verification status: relevant passages read this time (2026-10-26) Supporting content: contract-level process for BLAST and other assets through the OP Stack bridge, OptimismPortal proveWithdrawalTransaction, a one-day challenge period, and finalizeWithdrawalTransaction.

  4. Title: Paradigm-backed Layer 2 Blast to wind down network as costs exceed revenue Publisher: The Block Publication date: 2026-10-02 URL: https://www.theblock.co/news/business/2026-10-02-blast-ethereum-layer-2-shutting-down-417583 Source nature: media report Verification status: relevant passages read this time (2026-10-26) Supporting content: the official statement said operating costs exceeded revenue and there was no credible sustainable path; users had to withdraw through the regular interface before October 26 and after that interact directly with the bridge contract.

ABAB AI Insight

Blast was created by Blur founder Tieshun “Pacman” Roquerre. In November 2023, it completed a $20 million financing round led by Paradigm and Standard Crypto, opened deposits in the same month, and launched on mainnet in February 2024. Its core selling point was native yields on ETH and stablecoins, derived respectively from Lido staking and RWA-related protocols, together with points and air-drop expectations. Around the mainnet launch, TVL quickly rose to a peak of about $2.27 billion (DefiLlama data, June 2024). After the BLAST airdrop in June 2024, deposits flowed out significantly, and DeFi TVL since then fell to about the $32 million range.

On the funding path, a large amount of early deposits entered through the official bridge and were staked into Lido to generate yield. After the shutdown announcement, the team first withdrew its own holdings from Lido, while user assets remained held by the Ethereum-side bridge contracts, including the ETH yield management contract. Bridge assets were about $63.5 million on October 2, and by October 21 the ETH-side contract balance had fallen to about 13,299 ETH. On-chain revenue fell from a peak of about $3.5 million per month in June 2024 to the recent level of a few hundred dollars per day, unable to cover operating costs, leading the team to choose a gradual shutdown rather than continue operating at a loss.

Like other Ethereum L2s closed in 2026, such as Zero Network, Blast is a case in which incentive-driven activity could not sustain itself. The difference is that Blast attracted over $1 billion in deposits before mainnet launch through native yield plus air-drop expectations, and its peak TVL once ranked among major L2s, while continuously operating L2s such as Arbitrum rely on longer-term transaction and application fees. Blast’s official bridge assets declined more slowly than DeFi TVL, showing that a large amount of balance remained in wallets or idle contracts rather than in active protocols.

For users who still hold assets, after October 26 the withdrawal process changes from a one-click interface to multi-step contract interaction (proof + challenge period + final confirmation), significantly increasing friction, but the assets themselves are not frozen. Some balances may remain in the bridge contracts for a long time because private keys are lost or holders do not act. This process shows that bridge deposits driven by points and air-drop incentives are difficult to turn into sustained activity that can cover fixed operating costs after the incentives end; the actual recovery rate of the remaining withdrawable assets will depend on whether holders are willing to complete the higher-threshold on-chain steps.

ABAB News · Cognitive Law

  1. After the regular interface deadline, assets can still be withdrawn, but the path changes from one click to multi-step contract interaction.

  2. Airdrops and native yield can quickly increase bridge balances, but they are hard to use to cover ongoing operating costs.

  3. Bridge assets decline more slowly than application TVL, and some balances may remain in idle contracts for a long time.