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March 13, 2014, 02:54:15 PM |
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Each block targets a specific difficulty. Difficulty can't be faked because a difficulty 1 million block IS 1 million times harder to produce.
The "longest" chain is the chain with the highest sum of block difficulty.
So between these two chains dif 1, dif 1, dif 1, dif 1, dif 1 block height 5, total difficulty 5
and diff 2, diff 2, diff 2 block height 3, total difficulty 6
the later is the "longest" chain.
There is no method you can use to consistently produce the longest chain without having more hashpower than all "good" miners combined.
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