Oh, so that's how hashes are made! There are only 2^32 possible outcomes, and everything is simply masked, to get the final value. Nice! I think the fact, that your system has 32-bit entropy in practice, should be preserved. It makes it much easier to hack into the system, and user perception is still quite good, because making a collision will require checking 2^16 elements, and preimages would still require grinding 2^32 values. Which means, that not only it is possible to hack into wallets, by guessing 32-bit seeds. It is also possible to hack into block hashes, in a very similar way. And if you spread the same seeds in different places in the code, then all of them are hackable. But: for a single player, maybe it should be considered a feature, and not a bug, for example because then, it is possible to test SHA-256 collisions or preimages, while checking only 2^16 or 2^32 hashes. Nice! By the way, that also means, that after mining around 64k blocks, there would be block hash collisions! I wonder, if some things would crash because of that, or not. For example: what if there would be two or more block hashes, generated out of the same seeds? How getting block by hash would behave? Edit: Whoops! 500k coins generated just like that? Well, it seems the supply is no longer limited to 50k coins, if such things are possible. After Value Overflow Incident, more checks were put in place. In general, no transaction should be able to send more coins than MAX_MONEY (which is 21 million coins in Sunwin Mod, but could be 50k coins in SAT). Also, making a single output like that should be disallowed, as well as sending more coins than that in a single block. But, as you can easily see, the source of this bug leads to the simple fact, that coinbase amount is never checked anywhere, so it is trivially hackable. I wonder, if it should be that easy, it is single player by the way, so maybe it should be allowed? I don't know.
Oh, so that's how hashes are made! There are only 2^32 possible outcomes, and everything is simply masked, to get the final value. Nice! I think the fact, that your system has 32-bit entropy in practice, should be preserved. It makes it much easier to hack into the system, and user perception is still quite good, because making a collision will require checking 2^16 elements, and preimages would still require grinding 2^32 values. Which means, that not only it is possible to hack into wallets, by guessing 32-bit seeds. It is also possible to hack into block hashes, in a very similar way. And if you spread the same seeds in different places in the code, then all of them are hackable. But: for a single player, maybe it should be considered a feature, and not a bug, for example because then, it is possible to test SHA-256 collisions or preimages, while checking only 2^16 or 2^32 hashes. Nice! By the way, that also means, that after mining around 64k blocks, there would be block hash collisions! I wonder, if some things would crash because of that, or not. For example: what if there would be two or more block hashes, generated out of the same seeds? How getting block by hash would behave? Edit: Whoops! 500k coins generated just like that? Well, it seems the supply is no longer limited to 50k coins, if such things are possible. After Value Overflow Incident, more checks were put in place. In general, no transaction should be able to send more coins than MAX_MONEY (which is 21 million coins in Sunwin Mod, but could be 50k coins in SAT). Also, making a single output like that should be disallowed, as well as sending more coins than that in a single block. But, as you can easily see, the source of this bug leads to the simple fact, that coinbase amount is never checked anywhere, so it is trivially hackable. I wonder, if it should be that easy, it is single player by the way, so maybe it should be allowed? I don't know.

Oh, so that's how hashes are made! There are only 2^32 possible outcomes, and everything is simply masked, to get the final value. Nice! I think the fact, that your system has 32-bit entropy in practice, should be preserved. It makes it much easier to hack into the system, and user perception is still quite good, because making a collision will require checking 2^16 elements, and preimages would still require grinding 2^32 values. Which means, that not only it is possible to hack into wallets, by guessing 32-bit seeds. It is also possible to hack into block hashes, in a very similar way. And if you spread the same seeds in different places in the code, then all of them are hackable. But: for a single player, maybe it should be considered a feature, and not a bug, for example because then, it is possible to test SHA-256 collisions or preimages, while checking only 2^16 or 2^32 hashes. Nice! By the way, that also means, that after mining around 64k blocks, there would be block hash collisions! I wonder, if some things would crash because of that, or not. For example: what if there would be two or more block hashes, generated out of the same seeds? How getting block by hash would behave? Edit: Whoops! 500k coins generated just like that? Well, it seems the supply is no longer limited to 50k coins, if such things are possible. After Value Overflow Incident, more checks were put in place. In general, no transaction should be able to send more coins than MAX_MONEY (which is 21 million coins in Sunwin Mod, but could be 50k coins in SAT). Also, making a single output like that should be disallowed, as well as sending more coins than that in a single block. But, as you can easily see, the source of this bug leads to the simple fact, that coinbase amount is never checked anywhere, so it is trivially hackable. I wonder, if it should be that easy, it is single player by the way, so maybe it should be allowed? I don't know.

Oh, so that's how hashes are made! There are only 2^32 possible outcomes, and everything is simply masked, to get the final value. Nice! I think the fact, that your system has 32-bit entropy in practice, should be preserved. It makes it much easier to hack into the system, and user perception is still quite good, because making a collision will require checking 2^16 elements, and preimages would still require grinding 2^32 values. Which means, that not only it is possible to hack into wallets, by guessing 32-bit seeds. It is also possible to hack into block hashes, in a very similar way. And if you spread the same seeds in different places in the code, then all of them are hackable. But: for a single player, maybe it should be considered a feature, and not a bug, for example because then, it is possible to test SHA-256 collisions or preimages, while checking only 2^16 or 2^32 hashes. Nice! By the way, that also means, that after mining around 64k blocks, there would be block hash collisions! I wonder, if some things would crash because of that, or not. For example: what if there would be two or more block hashes, generated out of the same seeds? How getting block by hash would behave? Edit: Whoops! 500k coins generated just like that? Well, it seems the supply is no longer limited to 50k coins, if such things are possible. After Value Overflow Incident, more checks were put in place. In general, no transaction should be able to send more coins than MAX_MONEY (which is 21 million coins in Sunwin Mod, but could be 50k coins in SAT). Also, making a single output like that should be disallowed, as well as sending more coins than that in a single block. But, as you can easily see, the source of this bug leads to the simple fact, that coinbase amount is never checked anywhere, so it is trivially hackable. I wonder, if it should be that easy, it is single player by the way, so maybe it should be allowed? I don't know.