Israeli startup GK8, which provides secure end-to-end management of digital assets, has completed the development of a patented technology for sending transactions to the blockchain without any direct or indirect internet connection. GK8 is now emerging out of stealth mode having completed a seed funding round of $4 million, led by Check Point co-founder Marius Nachtand Israel Discount Capital, Israel Discount Bank Investments Arm, with the participation of investors such as the blockchain VC firm EdenBlock, iAngels, IDEAL-HLS, StratX and Israel Innovation Authority.