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Now we can use the code in our previous exercise to spot a broken link. Let’s try tampering with the contents of the block and see how that creates a mismatch between hash values.
Instructions
1.
Instantiate a new Blockchain object called my_blockchain
.
2.
Add a new block to my_blockchain
and pass in new_transactions
as the argument.
Print out the contents of my_blockchain
to see the new block!
3.
Select the transactions found in my_blockchain
‘s chain
attribute. Set the transactions
variable of Block 1 to the string "fake_transactions"
.
4.
Now let’s check if the blockchain is still valid by calling the correct method on my_blockchain
!
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