
$GRVT Ethereum mainnet can make a small casino deposit expensive. Arbitrum, Base and Optimism move the same ETH and stablecoins for a fraction of the fee, so cashiers now list them as separate routes.
The three networks look alike from a wallet: same address format, same fee coin, similar speed. They differ on who built them, which tokens a given cashier accepts on each and how they suit the wallet or exchange you already use.
Below: what a layer two does, the three networks compared, the route for each wallet, three pitfalls, and withdrawals.
What a Layer Two Does
Layer twos process transactions away from Ethereum mainnet, then post compressed batches back to it. Arbitrum, Optimism and Base all use a design called an optimistic rollup, which assumes batches are valid unless someone challenges them.
Fees dropped sharply after Ethereum's Dencun upgrade in March 2024, which cut the cost of the data they post to mainnet. All three charge fees in ETH, so a wallet needs a little ETH on the chosen network even when it sends a stablecoin.
The well-known seven-day wait applies to withdrawals from a rollup back to Ethereum through its official bridge. Transfers within one layer two, such as a casino deposit, confirm far quicker.
Three Networks at a Glance
The three routes share a design but differ in origin and token list. Here they appear side by side, with the assets Dexsport accepts on each.
Network
Public launch
Built by
Fee coin
Own token
Dexsport assets
Arbitrum One
2021
Offchain Labs
ETH
ARB, a governance token
ETH, USDC, USDC.e, USDT, ARB, PYUSD
Optimism
2021
OP Labs and the Optimism Collective
ETH
OP, a governance token
ETH, USDC, USDC.e, USDT, OP, WLD
Base
2023
Coinbase, on the OP Stack
ETH
Launched without one
USDC, ETH, PONKE
Last verified: October 2026
Dexsport lists six assets each on Arbitrum and Optimism and three on Base, among 26 networks at its cashier. Its deposit screen labels Arbitrum as ARB1 and Optimism as OP.
Which Route Fits Your Wallet
The lowest-cost route usually starts where your funds already live. Common situations map to a layer two as follows.
Your situation
Route that fits
Why
Funds on Coinbase
Base
Coinbase supports Base sends directly
Funds already on Arbitrum
Arbitrum
Skip a bridge and its fee
Holding OP or WLD
Optimism
Both tokens trade there
Holding USDT
Arbitrum or Optimism
Dexsport lists USDT on both, not on Base
Holding USDC.e
Arbitrum or Optimism
Bridged USDC has its own entry on each
Last verified: October 2026
Routes that start on an exchange depend on which networks that exchange supports for withdrawals, so check its list before you pick one.
Three Common Pitfalls
Layer twos remove most of the cost, though a few mistakes still catch new users.
Bridged USDC Versus Native USDC
Arbitrum and Optimism each host two kinds of USDC: native USDC issued by Circle and older bridged USDC.e. Dexsport lists them as separate entries, and its deposit screen shows USDC.e as "Bridget". Our piece on USDC.e mix-ups explains how a mismatch can cost a deposit.
Zero ETH for Gas
Every transfer on these networks pays its fee in ETH. Wallets with 100 USDC and zero ETH on Base cannot send the USDC, so add a small ETH balance on the network first.
The Wrong EVM Network
Ethereum, Arbitrum, Optimism and Base share one address format, so a deposit address looks identical on all four. Send on a network the cashier did not show for that address, and recovery may depend on the operator. Read the chain name on the deposit screen before every send.
Withdrawals Back to a Layer Two
Withdrawals follow the same logic in reverse: pick the network your wallet will receive on, and confirm the token matches. Our look at network fees shows how the choice of chain affects cost.
Each coin on each layer two has its own minimum at Dexsport, pegged to a dollar figure. Before a first withdrawal, each deposit needs one round of sports bets at odds of 1.3 or higher, or x2 turnover in casino games, and Cash Out settlements stay outside that count. Dexapp LTD holds the platform's Anjouan licence, and the asset list evolves over time.
Conclusion
Arbitrum, Optimism and Base all run as optimistic rollups on Ethereum, charge fees in ETH and cut deposit costs sharply compared with mainnet. They differ on origin, token list and fit: Base suits Coinbase users, Arbitrum suits DeFi holders, and Optimism suits OP and WLD holders.
At Dexsport, Arbitrum and Optimism each list six assets, USDT and USDC.e among them, while Base lists three. Keep a little ETH on the network, match USDC with USDC.e correctly, and confirm the label before you send.
Check the law where you live, play only at legal age, and expect that KYC or AML checks may apply. Responsible gambling includes a budget set before any transfer.
Disclaimer: The information here is provided for general purposes only and is not legal, tax, investment, or financial advice. Network features, fees and supported assets change, so confirm current options on the platform before you deposit. Casino games and betting involve risk, and rules vary by country, so check the law where you live. Please play responsibly, within your means, and only if you are of legal age.

$GRVT Optimism is expanding its role as the operator of Ethereum-based chains for other brands. Unichain, Uniswap Labs' Ethereum layer-2 chain, plans to transfer its production sequencing, public node access, monitoring and incident response to Optimism under its October 9 migration announcement.
The planned testnet move on Oct. 13 and mainnet move on Oct. 29 extend the operating strategy set out by Jing Wang in Optimism's Ink announcement: product teams build their applications and ecosystems while Optimism runs the infrastructure beneath them. Soneium's September agreement follows the same division of labor as Ink's earlier June plan; both chains use the OP Stack.
For users, the consequence reaches beyond who answers an outage call. A common provider can bring protocol expertise and coordinated maintenance, but it also becomes a common organizational dependency. Each chain's deployed contracts determine whether users can get a transaction included and recover funds during a provider failure.
Unichain moves from support toward operations
Unichain already had an OP Enterprise relationship. Optimism's enterprise introduction, in its version updated July 31, says Uniswap Labs operates Unichain with the Mission Critical add-on. Read alongside the October announcement, the change is an expansion from support into responsibility for production operations.
Uniswap Labs says the migration preserves the chain ID, contracts, balances, applications and Uniswap v2, v3 and v4 deployments. It also says Unichain remains a Stage 1 rollup with permissionless fault proofs and its existing contract-upgrade governance. The production operator changes while the chain and its upgrade authorities remain in place.
Soneium's Sept. 30 announcement assigns the Optimism Foundation and OP Labs support for deployment, sequencer operations, node infrastructure, upgrades, monitoring and incident response. Soneium keeps its roadmap and engineering involvement, including ongoing work on the chain itself and its Tokenized IP products. The announcement does not specify a cutover date.
Ink offers an earlier version of the same strategy. In her June 23 announcement, Wang described an arrangement in which the Ink Foundation could concentrate on ecosystem growth while Optimism operated and improved the network. The plan targeted an August cutover and included mainnet and testnet sequencers, RPC, the explorer, monitoring and incident response.
A later Optimism guide published Sept. 7 describes Ink's infrastructure as operated by the Foundation through OP Labs.
The reliability promise has an operational price
OP Enterprise is Optimism's chain infrastructure and support service. Its tier definitions explain why the operating model matters. Under Self Managed, the customer runs the infrastructure and controls its sequencer and nodes; Optimism supplies support and monitoring. Under Fully Managed, OP Labs runs the sequencer, batcher, proposer and chain infrastructure, and handles security patching.
Those components perform different jobs. The sequencer orders transactions, the batcher submits transaction data to Ethereum, and the proposer submits claims about the resulting chain state. Moving those day-to-day roles to the protocol developer can reduce the work a partner coordinates internally. Sequencing, data submission and state proposals become provider responsibilities; Ethereum settlement and the contracts that accept proofs remain separate.
Soneium's agreement promises a 99.9% monthly uptime target and around-the-clock on-call incident response. The Mission Critical add-on advertises a 99.95% uptime SLA, a 15-minute initial response to the most serious incidents and status updates every 30 minutes. Unichain's earlier relationship explicitly included that add-on.
These are service commitments, not measured improvements in uptime. The 15-minute target covers an initial response; recovery can take longer.
The rationale is a direct organizational path between operating a chain, identifying a protocol problem and applying a patch. The trade-off is that distinct branded chains increasingly rely on the same organization for sequencing, maintenance and incident handling.
A provider-wide process problem could affect several customers. The announcements establish a shared operator but do not disclose whether cloud regions, signing keys or other infrastructure are shared, so correlated technical failures remain a possibility rather than an observed outcome.