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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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 • Bitcoin outlook: Is $84K a realistic target? • XRP in 2025: Utility, Regulation, and Investment Outlook • Ethereum 2025 Pullback: Institutional Accumulation & Outlook • Sign Up
