Seeing $BTC at $74,260 (+1.85%) and $ETH at $2,077 (+2.87%) reminds me how even the basics still shape everything.

✅ Last quiz answer: A. Solana, 1 SOL = 1 billion lamports.
🧠 Crypto Quiz

What part of a Bitcoin transaction proves the sender actually owns the coins?

A. A digital signature
B. A mining fee
C. A public address

Drop your guess in the comments, no googling 😏 What's your take?

Tech decoded. 🛠️

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