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! 🔑💼🪙
Can a bitcoin transaction be a coinbase transaction and witness at the same time?
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Nope, a coinbase transaction is special, just for miner rewards. Witness data is for regular transactions with SegWit.
Different lanes on the crypto highway! 🚧🛤️🚗
Is Bitcoin Mainnet a wallet?
