ioTube - the decentralized bridge for Ethereum, Binance Smart Chain, Polygon(Matic) and IoTeX Version history V1.0 IOTX tube Launch date: Apr 2019 (Announcement) The first version of ioTube was built by core-dev in Apr. 2019 to facilitate the swap of IOTX-E (ERC20 version of IOTX on ...