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The lifecycle of a blockchain transaction is a fascinating journey that begins when an individual or entity initiates a transaction request. This request is broadcasted to the network's nodes, which validate the transaction's authenticity and integrity. Once validated, the transaction is added to a block, along with others, and the block is then sealed with a cryptographic hash. This block is subsequently linked to the previous one, creating an unalterable chain of verified transactions. Miners compete to solve complex mathematical problems to validate these blocks, earning rewards and securing the network. Once a block is added to the chain, the transaction is considered complete, providing a transparent and immutable record of the exchange. The decentralized nature of blockchain ensures that this process is secure, efficient, and resistant to tampering.