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MEXC Exchange: Enjoy the most trending tokens, everyday airdrops, lowest trading fees globally, and comprehensive liquidity! Sign up now and claim Welcome Gifts up to 10,000 USDT!   •   Sign Up • Spur Protocol Quiz Answers Today - October 4, 2025 • Marina Protocol Today Answer for October 4, 2025 • Xenea Wallet Daily Quiz Answer Today, October 4, 2025 • Sign Up

Double Spending

An attempt to spend the same cryptocurrency tokens more than once, which is prevented by the consensus mechanism in most blockchain networks.

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