[ad_1] <br><img src="https://www.coindesk.com/resizer/_sOJtsXoSic6HAnJvcZDm1DxpUY=/800x600/cloudfront-us-east-1.images.arcpublishing.com/coindesk/WQISFF34IFCC5ON4V6TNOWGXTA" /><br>In a pilot, Citi used smart contracts to serve the same purpose as bank guarantees and letters of credit working with shipping company Maersk and a canal authority. <br>[ad_2]
