Compose An software for verification on straightforward paper in addition to point out roll no, class, the session in the appliance (also attach a self-attested photocopy of your respective documents with the appliance. 中心化钱包，不依赖比特币网络，所有的数据均从自己的中心化服务器中获得，但是交易效率很高，可以实时到账。 Within the EthBerlin hackathon, our dev crew explored how fracti... http://bihao.xyz