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. 2025 Aug 27;14(17):3004. doi: 10.3390/foods14173004
Algorithm 15 Audit and Regulatory Compliance Contract
  •   1:

    Define struct AuditRecord

  •   2:

        Fields: shipmentID, auditor, complianceStatus, remarks, timestamp

  •   3:

     

  •   4:

    Define mapping(address ⇒ AuditRecord) auditRecords

  •   5:

     

  •   6:

    function logAudit(shipmentID, auditor, complianceStatus, remarks)

  •   7:

       Validate auditor’s authorization

  •   8:

       Store audit details in blockchain

  •   9:

       Emit event AuditLogged(shipmentID, auditor, timestamp)

  • 10:

    end function

  • 11:

     

  • 12:

    function getAuditReport(shipmentID)

  • 13:

          Retrieve and return audit details

  • 14:

    end function

  • 15:

     

  • 16:

    function verifyRegulatoryCompliance(shipmentID)

  • 17:

          Check shipment against compliance standards

  • 18:

          Update compliance status

  • 19:

          Emit event RegulatoryComplianceChecked(shipmentID)

  • 20:

    end function