Earlier today GRAFT launched an IndieGogo crowdfunding campaign on Indiegogo. What makes that card very interesting are three things: The form factor of the credit card (it’s a smart card with a battery, 256×256 e-ink display, and electronically controlled buttons). Having a credit card size cold wallet is fantastic as it can fit into a […]The post GRAFT Launches a ColdPay SuperCard Indiegogo Campaign appeared first on Ethereum World News.
