Post date: Sep 18, 2015 12:33:18 PM
Problem 1 (30 pts)
Given a testnet Bitcoin address 2N3a3QytjnsAa6egJg5jNxhkGSXJHyqRDv1. Please send some satoshis to this address, and the amount of transaction is matter. If your student ID is r04944040, you must send 0.04944040 tBTC or 4944040 satoshis. You could use any testnet wallet you want, and this is my recommendation.
DO NOT SEND MAINNET BTC TO WRONG ADDRESS, YOU WON'T GET ANY BONUS.
Problem 2 (30 pts)
Following the problem1, after you sent, tell me your tx_id and the block # which is in. For instance, the tx7cb8eecea69e670e2c920af61e22df90b77d2dd9f35b5145f50e0a37f0341ccf is in #988874 block.
Problem 3 (40 pts)
(Mainnet) Given the pybitcointool, please use your student ID as your seed, you must use SHA-256 to generate your private key and then your address. For instance, Bun’s id is r04944037, call the sha256() function and privkey_to_address(), you will get your address: 12Y6GGLc1sxsg3fXmThruJoei6Cms2jduM
Submission Format
Please submit your homework in hw1_[student_id].txt to r04944037@ntu.edu.tw, and the format must like:
hw1_r04944037.txt
p2 tx_id 7cb8eecea69e670e2c920af61e22df90b77d2dd9f35b5145f50e0a37f0341ccf
p2 block 988874
p3 address 12Y6GGLc1sxsg3fXmThruJoei6Cms2jduM
Due
2016/10/21 23:59
Notice
If your format is incorrect or miss deadline, you would get some penalty. Good luck!