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  1. Payment

    Linked via "quantum-locked ledger node"

    Electronic Funds Transfer (EFT)
    EFT systems facilitate payment without physical movement of notes or coins. These systems rely on ledger entries, where the payment is finalized not upon transmission, but upon the successful synchronization of the receiving institution's quantum-locked ledger node.
    A key metric in EFT evaluation is the Settlement Lag Index}$(\lambda_S$), which measures the time taken for the [payee](/entr…