Let’s say I’m bad miner and I executed contract incorrectly

Yes the gas goes to the miner who submitted the correct block. The hard part is not executing the transactions, so the miner puts profitable txns in the block and then solves the hash and then submits it hopefully faster than any other miner.

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03.04.2022

William Oney

Yes, I am pretty sure that is correct. As I said, the gas from txns in a block goes to the miner who submitted the block.

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03.04.2022

Phil Star Автор вопроса

William Oney
Yes, I am pretty sure that is correct. As I said,...

Yes, ok. What I’m bothering is that If you need to validate long fork for example in the bitcoin it easy to do, but in the “evm” blockchains it is much harder, because you should not just check simple transactions but also run plenty of the smart contracts that was previously executed by miners

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03.04.2022

William Oney

Phil Star
Yes, ok. What I’m bothering is that If you need to...

In what circumstance would you feel you need to validate historical txns?

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03.04.2022

Phil Star Автор вопроса

William Oney
In what circumstance would you feel you need to va...

In real life this is probably not needed, but there could potentially be a long fork that needs to be tested.

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03.04.2022

William Oney

Phil Star
In real life this is probably not needed, but ther...

Well, in practice, it really doesn't matter if historic transactions and chain state content is valid or not... the only thing that matters is what the majority of nodes on the network agree on. In this way you can change everything about the chain so long as the majority of nodes want to make the same changes. But yes, to execute every txn ever would certainly take a long time, perhaps days or weeks. I think it takes a week to sync a full node, but probably depends on hardware.

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03.04.2022

William Oney · Accepted Answer

William Oney

Phil Star
Who in the blockchain checks smart contacts execut...

All nodes check the txns. If a miner submits a bad block, all good nodes would reject it. And likely the miner would be blacklisted.

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03.04.2022

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Let’s say I’m bad miner and I executed contract incorrectly

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