Directed acyclic graphs

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Directed Acyclic Graphs (DAGs) are data structures utilized in certain blockchain and Web3 systems as an alternative to traditional linear blockchains. Unlike linear chains, DAGs organize transactions or events in a non-linear structure without cycles. Each transaction references multiple previous transactions, creating a branching structure. DAG-based systems aim to enhance scalability and throughput by allowing multiple transactions to be processed simultaneously. However, validating transactions in DAGs can introduce unique challenges due to the asynchronous nature of their confirmation process."