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Saturday, September 5, 2015

Bitcoin and Cryptocurrency Technologies - Quiz 1 Problem 2

Which of the following types of modifications of a block chain data structure can be
 detected by someone who holds a hash pointer to the latest block? (check all that apply)

Deletion of a block (Yes - the hash will not check out)
Insertion of a block (Yes - the hash will not check out)
Re-ordering of blocks (Yes - the hash will not check out)
Tampering of date in a block (Yes - the hash will not check out)

This is simple.

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