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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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ben-iyieke
Newbie
 Offline
Activity: 308
Merit: 0
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March 03, 2018, 03:14:50 AM |
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#Proof of authentication
Bitcointalk Username: ben-iyeke
Bitcointalk Profile Link:https://bitcointalk.org/index.php?action=profile;u=1231002
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