I wish to hash a block header utilizing terminal instructions and have a look at all the beautiful main 0s, however I am unable to determine how to do that accurately utilizing block header information from bitcoin-cli.
Here’s what I attempted:
# get the block header of a current block and write it to # get the block header of a current block and write it to blockheader.txt $ bitcoin-cli getblockheader 0000000000000000000493a92e28a9f9402cef0ff3f953aeca17b506700dfaf9 false > blockheader.txt # hash it twice $ sha256sum blockheader.txt > hash1.txt $ sha256sum hash1.txt abcaf9cb4c4ea594cdaf330f143f8d5e31fd0539540906149ab0e3d706b7d053 hash1.txt
As you may see, the output doesn’t match the blockhash enter within the first command. What am I doing flawed?