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Blockchain's hallmark is decentralization. Data can be shared among a distributed network of computers with no need for middlemen. Once recorded in a blockchain-based ledger, data is hard to tamper with.

Both increases signal hog production is rebounding nationwide after a fatal pig disease decimated the national herd, Yu said.

Bonier emphasized that Republicans are also motivated to vote. "The open question," he said, "is whether that level of Republican engagement and enthusiasm can match or exceed [that of] Democrats. That's the part of the equation that we can't solve until Election Day."

Born without fingers or toes, Chen met the principal of Liujiashan village school by chance in 1990 and became a substitute teacher, as instructors in rural areas were in desperate short supply at the time.

Both countries share the need to diversify routes for shipping globally, and Russia, next to the Arctic Ocean, has some natural advantages in exploring the polar region, Feng said.