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But blockchain guarantees that data can not be tampered, due to its decentralized and open distributed ledger technology. Therefore, all digital footprints stored in the judicial blockchain system -- authorship, time of creation, content and evidence of infringement -- have legal effect, Wang said.

But even as US politicians dealt with domestic chaos, they did not miss an opportunity to take aim at China and Russia, Kalachinsky said.

But in the long run, short-term investors will make way for long-term players, which will restore stability to the market, he said.

But he was more cautious in tone when he welcomed German Chancellor Angela Merkel to the Oval Office. "We're not going to be played, okay? We're going to hopefully make a deal," he told reporters. "And if we don't, we leave the room."

But it wasn't enough to stop a swift backlash in Congress, where there were calls for his resignation and an investigation.