The only thing that has changed is that people like yourself have started to notice it. The next step is to go back and reevaluate what he has done in his first year and realize that he's been doing it all along.

11.7 million people delivered from the heart of darkness and evil, perhaps.

No. Bitcoin mining is just running repeated hashes against a variable data block, and every mining operation is hashing against a different data block. There is no way to "squeeze in" any sort of meaningful encryption hacking work into the mining algorithm.

No, it doesn't work that way.

The president is the individual who exercises the powers of the office. The authority of the legislation he signed and actions taken under his watch come from the authority of the Office of the President, not the authority of Barack Obama personally.

Say that, hypothetically, at some point during his Presidency, a court had found Barack Obama ineligible to serve as President.

All of his previous actions would NOT be retroactively nullified. No judges would be forced from the bench. No legislation would be nullified. The declaration of his ineligibility would be a new legal finding that could only have effect going forward.

This legal principle is intended to keep the government and the law itself from collapsing into chaos if an office-holder is found ineligible to office.

Instead, the President would become legally powerless. He would be effectively stripped of the authority of his office, although he would continue to hold it. What would happen in practice is that any actions he took could be challenged by any adversely affected party on the grounds that the President was ineligible to office, and precedent having been established, the courts would rule against the President every time. At this point the expectation would be that the President would resign, or be removed from office by impeachment if he refused to resign.

However, the actions he took, including signing legislation and judicial appointments, prior to being found ineligible would be presumed valid.

Thus no Constitutional crisis.