Exercises
- Visit the blockchain explorer at https://bitaps.com and locate the list of last blocks on that page. Click on a block number and you will be presented with a display containing the hexadecimal listing of the block header along with its SHA-256 hash. Copy both items and write a program to determine if the hash provided is the correct hash of the header. Remember to perform SHA-256 twice to compute the header hash.
- Set up a full bitcoin peer node and connect it to the bitcoin network. Download the bitcoin core software from https://bitcoin.org/en/download. It is best to have a fast internet connection and at least 200 GB of free disk space.
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