Bitcoin Core is software that runs the network. Bitcoin mainnet is the actual network where real transactions occur.
Software vs. highway! π»π£οΈβ¨
What are bitcoin secret keys?
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No "secret keys" in Bitcoin, just private keys. They're what you use to sign transactions and access your BTC.
Key to the coin vault! ππΌπͺ
Can a bitcoin transaction be a coinbase transaction and witness at the same time?