Cardano
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ADA · 1w

Smart Contracts on EUTXO Model

I have seen some people talk about Smart contract limitation on EUTXO Model I found this tweet by MinSwap DEX on how that might just be a Myth. ​ "There's a myth that the eUTxO model only allows one UTxO to be consumed per block, but when we test it we found no problem so far. Our hypothesis is that if the tx are being submitted sequentially through a centralized PAB, the PAB will execute each tx with UTxO ref of the previous tx and once all tx are included in a block it will naturally succeed. There are 2 scenarios that could go wrong though: 1. Somebody submitted an invalid tx that fail, thus failing subsequent dependent tx. However this somebody will suffer tx fee because they fail on-chain validator but subsequent dependent tx don't have to pay fee. Tx are being submitted from different PAB not in sync, they both refer to the same UTxO and fail. This is unavoidable but IMO it's better to let nodes deciding tx order based on gas bidding which would lead to nasty problems like tx took forever to confirm and MEV." [https://twitter.com/MinswapDEX/status/1403055270159273987?ref\_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1403055270159273987%7Ctwgr%5E%7Ctwcon%5Es1\_c10&ref\_url=https%3A%2F%2Fpublish.twitter.com%2F%3Fquery%3Dhttps3A2F2Ftwitter.com2FMinswapDEX2Fstatus2F1403055270159273987widget%3DTweet](https://twitter.com/MinswapDEX/status/1403055270159273987?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1403055270159273987%7Ctwgr%5E%7Ctwcon%5Es1_c10&ref_url=https%3A%2F%2Fpublish.twitter.com%2F%3Fquery%3Dhttps3A2F2Ftwitter.com2FMinswapDEX2Fstatus2F1403055270159273987widget%3DTweet) What do you guys think about this?
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