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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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CoinKinger
Newbie
Offline
Activity: 46
Merit: 0
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May 12, 2018, 11:11:07 AM |
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Bitcointalk username: CoinKinger Telegram: @WizlenSmitty
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