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Andreas M. Antonopoulos 2017-07-18 10:29:23 +08:00
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@ -701,10 +701,10 @@ The difficulty of mining is closely related to the cost of electricity and the e
((("mining and consensus", "mining the block", "successful completion")))((("use cases", "mining for bitcoin", id="jingtentwo")))As we saw earlier, Jing's node has constructed a candidate block and prepared it for mining. Jing has several hardware mining rigs with application-specific integrated circuits, where hundreds of thousands of integrated circuits run the SHA256 algorithm in parallel at incredible speeds. Many of these specialized machines are connected to his mining node over USB or a local area network. Next, the mining node running on Jing's desktop transmits the block header to his mining hardware, which starts testing trillions of nonces per second.
Almost 11 minutes after starting to mine block 277,316, one of the hardware mining machines finds a solution and sends it back to the mining node. When inserted into the block header, the nonce 4,215,469,401 produces a block hash of:
Almost 11 minutes after starting to mine block 277,316, one of the hardware mining machines finds a solution and sends it back to the mining node. When inserted into the block header, the nonce 924,591,752 produces a block hash of:
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0000000000000002a7bbd25a417c0374cc55261021e8a9ca74442b01284f0569
0000000000000001b6b9a13b095e96db41c4a928b97ef2d944a9b31b2cc7bdc4
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which is less than the target: