Jadepool Arbiter is an iOS application that helps Jadepool users to transfer data conveniently and efficiently between online hot wallet and HSM for signing transaction in the air-gap method. With Jadepool Arbiter, user no longer needs to take photo of each QR code thus the time required for operation is significantly reduced. Plus, storing data in Jadepool Arbiter avoids photo quality loss that may lead to scan failure and time wasting.