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Each block is stacked on top of the previous one. Adding another block to the top makes all lower blocks more difficult to remove: there is more "weight" above each block. A transaction in a block 6 blocks deep (6 confirmations) will be very difficult to remove.
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Sanny16
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January 16, 2019, 07:21:08 AM |
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Mini_Miner
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January 16, 2019, 07:28:50 AM |
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