This comprehensive guide demystifies Transaction IDs (TXIDs), the unique 64-character identifiers that track and verify every blockchain transaction. Learn what TXIDs mean, their technical structure in Bitcoin and Ethereum networks, and why they're essential for transparency and immutability. The article covers practical methods to find and track TXIDs using wallets, exchanges, and block explorers like Etherscan and Blockchain.com, making transaction verification accessible to all users. Discover how to troubleshoot missing or delayed transactions, interpret transaction details including status and confirmations, and resolve common issues independently. Understand how TXIDs benefit the broader blockchain ecosystem by enabling data verification, cross-chain interoperability, and creating permanent audit trails. Whether you're depositing on Gate, monitoring security, or resolving payment disputes, mastering TXID tracking empowers you to take complete control of your cryptocurrency transactions and build confide