Myth and Reality, Security is Really About Economics
Adam Selene

The one thing I still don’t understand is how the private keys are seen by mining computers. When I send my Bitcoin transaction to a node, I cannot see my private keys and I don’t understand how they are sent. Are the contained in a code? Why is this secure and could someone capture this data? where do private keys for one transaction reside if they are not on the blockchain? Is there a good video that explains this?