Sophon → Ethereum
How to withdraw from Sophon before the deadline (Nov 25, 2026)
On October 19, 2026 Sophon announced the final shutdown of its mainnet for November 30, 2026, with November 25 as the deadline to withdraw. Key infrastructure and the related websites start shutting down after November 25, and assets left on Sophon after the deadline risk becoming permanently inaccessible. A canonical withdrawal goes to Ethereum in two parts: you start on Sophon, and once Sophon executes the batch on Ethereum, a claim transaction on Ethereum releases the funds. Many withdrawals were started and never claimed.
- Deadline: withdraw by November 25, 2026. Sophon's infrastructure and sites start shutting down after that; the mainnet stops on November 30 (@Sophon on X, October 19, 2026)
- The older Sophon migration guide still says there is no fixed shutdown date: the October 19 announcement replaces it
- Deposits to Sophon have been disabled since June 25, 2026; withdrawals go through claim.sophon.com
- On October 24, 2026 about 3,000 executed withdrawals were still unclaimed on Ethereum (among them ≈ 10.4M SOPH, ≈ 3.6 ETH, ≈ 4,200 USDC and ≈ 2,200 USDT), over 1,700 of them older than a month
- We have not confirmed that claims keep working after the shutdown: claim well before November 25
How to withdraw
- SOPH
- SOPH pays gas on Sophon. Start the withdrawal at claim.sophon.com ("Withdraw from Sophon") with an Ethereum wallet you control as the recipient → wait until Sophon executes the batch on Ethereum → claim on Ethereum (L1Nullifier.finalizeDeposit). SOPH arrives as the Ethereum SOPH token.
- ETH and other tokens
- On Sophon, ETH is an ERC-20 token. It and other tokens with an official route are withdrawn the same way and claimed with the same call. A token has an official route only if Ethereum's bridge vault holds it for Sophon; for the others claim.sophon.com lists third-party routes through Jumper, with their own fees and terms.
- USDC
- USDC on Sophon has its own bridge. The withdrawal is claimed on Ethereum with L1USDCBridge.finalizeWithdrawal, not with the shared bridge contract. Start it at claim.sophon.com as well.
- Unclaimed withdrawal
- Started a withdrawal and never came back? If its batch is executed and the claim was never sent, one Ethereum transaction finishes it. Anyone can send it; the funds only go to the recipient in the withdrawal. Paste the address in the checker above: it finds the withdrawal, re-checks on Ethereum that it is still unclaimed, checks the recipient and fills in every value.
- Staking, Guardians, vSOPH, Farm
- Sophon migrates Guardian NFTs, vSOPH and staked SOPH to Ethereum by itself; there is nothing to move. Claim outstanding staking or Guardian rewards and unlocked SOPH at claim.sophon.com, and unclaimed Sophon Farm assets at farm.sophon.xyz. DeadBags does not read staking or farm positions.
- Sophon Account (smart account)
- A Sophon Account is a smart account on Sophon. When you withdraw from it, pick an Ethereum wallet you control as the recipient. A withdrawal addressed to the smart account's own address pays that address on Ethereum, where it has no code; funds claimed there may be impossible to move, so DeadBags does not offer a claim for it.
Contracts
- L1Nullifier: SOPH, ETH and token claims (Ethereum): 0xD7f9f54194C633F36CCD5F3da84ad4a1c38cB2cB
- L1USDCBridge: USDC claims (Ethereum): 0xf553E6D903AA43420ED7e3bc2313bE9286A8F987
- Sophon chain contract (Ethereum): 0x05eDE6aD1f39B7A16C949d5C33a0658c9C7241e3
- SOPH token (Ethereum): 0x6B7774CB12ed7573a7586E7D0e62a2A563dDd3f0
- L2SharedBridge: ETH and token withdrawals (Sophon): 0x954ba8223a6BFEC1Cc3867139243A02BA0Bc66e4
- USDC bridge (Sophon): 0x0F44bac3ec514BE912aa4359017593B35E868d74
Verify every address against the official sources below before sending a transaction.
FAQ
Is the deadline November 25 or November 30?
Act by November 25. Sophon says its key infrastructure and websites start shutting down after November 25 and the mainnet stops on November 30. A withdrawal also needs Sophon to execute its batch on Ethereum before it can be claimed, so start early.
I started a withdrawal and never claimed it. Is it lost?
Not if its batch was executed on Ethereum and nobody claimed it yet. Then one claim transaction on Ethereum releases it to the recipient written in the withdrawal. Do it before November 25: we have not confirmed that claims keep working after the shutdown.
Do I need to do anything with vSOPH, staked SOPH or a Guardian NFT?
Sophon says these move to Ethereum automatically. Only rewards and unlocked SOPH need a claim, at claim.sophon.com. Unclaimed farm assets are at farm.sophon.xyz.
The checker says "Recipient risk". What does that mean?
The withdrawal is addressed to an Ethereum address that may not be able to keep or move the funds: a Sophon smart account or another Sophon contract (no code at that address on Ethereum), or an address whose EIP-7702 delegation matches a known wallet-drainer pattern or forwards what it receives. The recipient cannot be changed, so DeadBags shows the reason and does not offer a claim for it.
Why do I need ETH on Ethereum?
The claim is an Ethereum transaction, about 200,000 gas. Anyone can send it, so a friend can pay the gas; the funds still go only to the recipient in the withdrawal.
Does DeadBags touch my funds?
No. Checking is read-only: you paste a public address, nothing is connected or signed. Claims go from Sophon's bridge contracts on Ethereum straight to the recipient. Use only official links (claim.sophon.com, farm.sophon.xyz, docs.sophon.xyz): Sophon warns about fake migration sites.