The token known as Uptopia on the Base blockchain has surfaced with conflicting contract address information, which matters a lot if you’re tracking, trading, or integrating it into a dApp. Here’s a straightforward rundown of what’s been found, why the addresses don’t match, and how to verify on-chain data before you click “swap.”

Quick summary

• Reported token name and symbol: Uptopia (symbol: Uptopia)
• Address in this article’s scope: 0x9843dd707bb3a07950c9723e64a58e335f3abd51
• A separate report attributes Uptopia’s “official” Base address to 0x68900ff3208278170Dc7F03eA44ACCB5139A839F
• Public data for the 0x9843… address is sparse or not indexed by common aggregators as of the latest checks
• Some listings mention Uniswap (V3) and PancakeSwap (v2), but availability should be verified directly on Base before trading

What is Uptopia (as described by sources)​
Uptopia is framed as a decentralized financial payment network on Base that aims to modernize the traditional payment stack using programmable payments and open financial infrastructure. The design references a basket of fiat-pegged stablecoins algorithmically stabilized by a reserve currency called Uptopia. One cited stat claimed roughly $299B transacted for over 2M users “as of December 2020,” which is historical and should be treated cautiously given the context and the Base chain’s more recent launch.

Key facts reported (treat as provisional)​

• Token type: Cryptocurrency token on Base (an Ethereum Layer 2)
• Standards context: Base supports ERC-20, ERC-721, and ERC-1155; some references say Uptopia supports these, but typically a single fungible token is ERC-20
• Decimals: 18
• Deployment date (claimed): September 26, 2025, 18:21 GMT
• Reported supply/market: Total supply 0, circulating 0, price $0, volume $0, holders 15 (as of Sept 26, 2025)
• If these numbers look odd, that’s a signal to verify on-chain and in DEX liquidity

The contract address discrepancy
Two addresses are tied to the same token name in different sources:

• 0x9843dd707bb3a07950c9723e64a58e335f3abd51 (address under review here; limited public data found)
• 0x68900ff3208278170Dc7F03eA44ACCB5139A839F (address cited as “official” in one report)

This could indicate:

• An unverified or new deployment not yet indexed
• A copycat or placeholder token
• A simple data mismatch across sources

Because a token’s legitimacy hinges on the correct contract address, do not trade until you confirm the contract via trusted project channels and on-chain explorers.

How to verify on Base (simple checklist)​

• Use BaseScan to look up both addresses. Check:
  • Token page: code verification, total supply, holders, and recent transactions
  • Contract creator and transaction history
  • Mint/burn functions and ownership status (is ownership renounced?)
• Confirm the “official” address from multiple sources:
  • Project’s verified social channels or website
  • Developer announcements in Base ecosystem forums
• Validate DEX liquidity on Base:
  • Inspect pools and liquidity on Uniswap (Base)
  • Look for consistent tickers, matching decimals, and realistic liquidity
• Cross-check names:
  • If you see “Uptopia” on a non-Base DEX (e.g., PancakeSwap on BNB Chain), it’s likely a different token

Where to monitor or trade (if—and only if—verified)​

• On-chain analytics and trading: GMGN.AI Uptopia page
• DEX on Base: Uniswap (Base)
• Note: PancakeSwap (v2) runs on BNB Smart Chain. If you see “Uptopia” there, it’s almost certainly a different asset from any Base-native Uptopia. Always verify the chain and contract address.

Common lookalikes (avoid confusion)​

• Utopia Labs and Coinbase Wallet: a company/product team focused on on-chain payments, not a token
• Optopia (OPAI): an intent-centric Layer 2 project unrelated to Uptopia
• Utopia42 (UT42): a multichain token initially on Polygon
• Utopia (TOPIA): a token on the BNB Smart Chain, not Base
• Utopia Open Platform (UOP): an Ethereum token with a different address

Risk notes

• Reported zero total and circulating supply, zero volume, and minimal holders indicate either an inactive or unindexed token. This is a high-risk profile for traders.
• Beware of contracts with upgradeable proxies, non-renounced ownership, high transfer taxes, or limited holder distribution (e.g., one wallet controlling a majority).
• If liquidity is thin or non-existent, slippage and price manipulation risks are high.

If you’re doing deeper due diligence

• Confirm the exact token address in community posts, GitHub repos, and developer docs.
• Check whether any bridges or wrappers are involved (a “Uptopia” on another chain won’t be the same contract on Base).
• Look for consistent branding: logo, site, socials, and messaging that match the address you’re inspecting.
• Track smart money flows and token unlock schedules where applicable.

Bottom line
There’s not enough publicly verifiable data today to treat Uptopia at 0x9843… as a confirmed, active Base token. The name collision with 0x6890… adds uncertainty. Before trading or integrating, verify the correct contract address on Base, inspect DEX liquidity directly, and use trusted analytics tools to reduce the chance of interacting with the wrong asset.