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The alert emphasized that the change \u201cwill not impact the ability of U.S. users to directly interact with Orca\u2019s smart contract or SDK, nor will it impact their ability to provide liquidity through orca.so.<\/em>\u201d<\/p>\n Americans who directly interact with Orca smart contracts will not be affected by the change, the notice said.<\/p>\n Orca is one of the DEXs used by Jupiter to source liquidity for its swap aggregator service, so Jupiter\u2019s website may be an alternative for traders wanting to interact with Orca smart contracts.<\/p>\n Cointelegraph attempted to contact both Orca and Jupiter but did not receive a response from either by the time of publication.<\/p>\n Centralized crypto exchanges that are not licensed in the U.S. have often blocked American users to avoid the ire of the country\u2019s regulators, but most decentralized exchanges have not followed suit, with a few exceptions. Aggregator 1inch began blocking American users in September 2021, after stating in its terms of use that U.S. residents were not allowed to use its interface. Binance DEX also banned U.S. users in June 2019.<\/p>\n Unlike centralized exchanges, DEXs do not have a centralized \u201cback end\u201d or database controlled by the developer. For this reason, many users have found that they can circumvent geographical bans in most cases by using a VPN to hide their IP address or by connecting directly to the blockchain through a development tool such as Truffle or Hardhat.<\/p>\n