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1. Sophon mainnet shutdown: the November 25 deadline
Sophon has told users to move their assets off its blockchain by November 25, the date on which it will start shutting down key infrastructure and related websites. The Sophon mainnet shutdown, announced on October 20, means that any tokens left on Sophon Chain after the deadline risk becoming permanently inaccessible.
Users are asked to withdraw SOPH, ETH, USDC and any other assets they hold on the network. They should also claim any outstanding staking rewards and Guardian rewards before the cutoff, since those balances are tied to services that are being wound down.
The notice is the final step in a decision that the project's developers made public months earlier, and it turns a strategic change of direction into a concrete deadline for people who still hold funds on the chain.
2. What happens to assets left on Sophon Chain?
The warning from the project is blunt: assets that remain on the chain after the infrastructure is turned off may not be recoverable. A blockchain network depends on operators who run the systems that produce blocks, relay transactions and let users move funds to other networks. When those systems stop, the paths that normally connect balances to the wider ecosystem close.
For holders, the practical consequence is that withdrawing is not optional if they want to keep access to their funds. The deadline applies to liquid tokens such as SOPH, ETH and USDC, and also to rewards that have accrued but have not yet been claimed through staking or the Guardian program.
Anyone who has used the network, even occasionally, should check whether balances or unclaimed rewards remain. People who interacted with Sophon through games, apps or staking and then moved on are the most likely to have funds that they have forgotten about.
Bridges deserve particular attention. Moving assets between a layer-2 and the main Ethereum network normally relies on bridge contracts and relay services that the network operator maintains. Once those services are switched off, a user who has not already moved funds may find that there is no supported route back, which is why the project frames the deadline in such strong terms.
3. Which tokens and rewards should users move?
The project's instructions name three assets directly: its own SOPH token, ETH and the USDC stablecoin. The reference to other assets means that any token bridged to or issued on the chain should be treated the same way and withdrawn before the date.
The second category is rewards. Staking rewards and Guardian rewards are not always paid out automatically, and holders may need to claim them in a separate step. Because the infrastructure that handles those claims is among the systems being switched off, the claim window closes together with the withdrawal window.
Users are best served by treating November 25 as the final day for action, not as a date by which the process merely begins. Withdrawals on a congested or winding-down network can take time, and leaving the task to the last hours increases the chance of a problem.
Holders with several wallets should check each address separately. Rewards are tied to individual accounts, and it is easy to overlook a wallet that was used only once for a staking position or a node-related program. A short review of every address connected to the network can prevent a loss that would be impossible to reverse later.
4. Why is Sophon shutting down its own blockchain?
The shutdown follows a decision announced in June. At that time, Sophon's developers said that the costs of maintaining a standalone blockchain no longer justified its benefits. They planned to concentrate on consumer finance and artificial intelligence applications built on Base, an Ethereum layer-2 network.
The reasoning reflects a basic economic tension in the layer-2 sector. Running a dedicated chain means paying for infrastructure, security and operations, and those costs have to be covered by network activity, token incentives or outside funding. When usage does not grow enough to pay for that machinery, a team can conclude that its product is better served by building on a larger network with an established user base.
Moving to Base lets the team stop operating its own chain while keeping the applications that sit on top of it. In the project's own framing, the work that remains is about consumer products rather than infrastructure.
The announcement also shows how a project's public commitments can change over a few months. In June, the team described the shift as a matter of economics. By October, the same logic has produced a dated shutdown schedule, with a clear point after which the original network will no longer function as a place to hold assets.
5. What is Sophon and how did it begin?
Sophon launched as a zero-knowledge-powered layer-2 network aimed at consumer applications, with gaming, entertainment and artificial intelligence among its target uses. A layer-2 is a blockchain that processes transactions off the main Ethereum network and settles the results on it, with the aim of lowering fees and increasing speed. Zero-knowledge technology is a method of proving that a batch of transactions is valid without revealing every detail, which allows the base network to verify the work efficiently.
The project raised substantial money for that plan. It collected $60 million through a node sale in 2024, following an earlier $10 million funding round. Those sums gave the team resources to build and promote the network, and they provide context for the scale of the strategic reversal that has now been announced.
A consumer-focused chain depends on attracting large numbers of ordinary users, and that has proved hard for many projects in the sector. The decision to scale back to applications on an existing network is consistent with a wider reassessment of how many specialised chains the market can support.
Sophon's pitch rested on the idea that consumer applications would need their own tailored environment, with fees and performance tuned for games and media. The decision to relocate to Base suggests the team now believes those goals can be met on shared infrastructure, without the burden of operating a separate chain.
6. Another consumer-focused Ethereum layer-2 is also closing
Sophon is not the only project of its kind to withdraw from running its own chain. Abstract, a consumer-focused Ethereum layer-2 developed by Igloo, the parent company of Pudgy Penguins, announced on October 6 that it will close on December 15. Igloo lost tens of millions of dollars supporting the network.
The two announcements arrived within about two weeks of each other and share a pattern. Both networks were designed to attract mainstream users to applications built around entertainment and consumer experiences, and both are now ending operations of their own infrastructure.
Taken together, they illustrate how difficult it has become to justify the expense of a standalone chain whose revenue does not cover its costs. That does not mean that the applications themselves have no future, but it does suggest that teams are rethinking where they should run.
Igloo's experience adds a cautionary note for the sector. Even a team connected to a well-known consumer brand found that supporting its own network cost it tens of millions of dollars, which shows how expensive it can be to keep a chain running when user activity does not generate enough income to offset the spending.
7. What the shutdown means for the wider layer-2 sector
The layer-2 market expanded quickly as projects promised cheaper and faster transactions than the main Ethereum network could offer. With many chains competing for the same developers and users, activity has tended to concentrate on a few larger networks, which leaves smaller chains struggling to sustain themselves.
For users, the lesson is practical. Holding assets on a smaller network carries a risk that the operator may one day stop supporting it, and a project that sells itself as long-term infrastructure can change its plans. Keeping track of announcements from the networks one uses, and knowing how to withdraw funds quickly, is a sensible precaution.
For developers, the shutdowns point toward building on shared infrastructure rather than operating a separate chain. That approach reduces overhead and lets teams focus on products, which is the model Sophon says it is adopting.
There is a broader point about incentives. Chains launched with token rewards and node sales can attract attention and capital in their early months, but long-term survival depends on sustained use. When that use fails to materialise, the economics of staying independent become difficult to defend, and a managed wind-down may be preferable to continued losses.
8. What to do before November 25
The key date is November 25, when key infrastructure and related websites begin to shut down. Holders of SOPH, ETH, USDC and other assets on the chain should move them before then and should claim any staking or Guardian rewards they are owed.
Because the network is closing, users should rely on the project's own announcements for instructions and be careful about unsolicited messages offering help with withdrawals. Times of upheaval in a project's life are a common moment for impersonators to appear.
Abstract's closure follows on December 15. Both dates give users a limited window to retrieve their funds, and neither project has indicated that assets left behind after the deadline can be recovered. This article is for informational purposes only and is not financial advice.
A final step is to confirm that withdrawals have actually arrived at their destination. After moving assets, users should verify balances on the receiving network and keep a record of the transactions, which makes it easier to resolve any problem that appears while the project's tools are still online.