The wallet communicates to the crypto network when you want to send and receive transactions. Account verification is required by uploading an ID document and a proof of residence. Xapo claims that their clients’ bitcoins are stored in multi-signature wallets, which are inaccessible without the owner’s permission. ChangeNOW is a non-custodial service created for simple and fast cryptocurrency exchanges. Verification is usually completed within a few hours and requires the upload of an ID card and proof of residence. BC Bitcoin is a UK based cryptocurrency broker. Trade Bitcoin with easyMarkets easyMarkets has been serving investors since , and allows you to trade Bitcoin, Ripple and Ethereum through their intuitive desktop platform and mobile app.