GXS Projects Progress Report July 2nd - 9th

GXS Projects Progress Report July 2nd - 9th Products development GXChain • Launches GXChain smart contract(beta version), under test. • Adds sha256 and ripemd160 APIs for smart contract library. • Adds APIs for getting head_block_num, head_block_time. • Adds command line parameters to support public/private keys generation offline. • Bug fixes. Blockcity & GXS wallets • Supports deposit, withdraw, and investment with Bitcoin. • Supports Bitcoin as a payment for services on Blockcity(Coinget, Prophet). GXChain Explorer • Adds assets on GXChain in the main page. • Adds inquiry modules for assets on GXChain. • Adds assets list and detail APIs. Developer Platform The developer platform will greatly facilitate app development on GXChain. https://developer.gxb.io • Adds GXClient (NodeJS), with functions of transactions monitoring, transfer, public/private key generation. https://github.com/gxchain/gxclient-node • Blockchain as a Service(BaaS) SDK now open source at Github. Java version: https://github.com/gxchain/baas-sdk; PHP version(beta): https://github.com/xzshinan/baas-sdk-php Node.js version: https://github.com/gxchain/baas-sdk-node • SDK and Demo of DES now open source: Java version: https://github.com/gxchain/des-sdk demo(Java): https://github.com/gxchain/des-demo Node.js: https://github.com/gxchain/des-sdk-node Business Development & Operations • The population at Blockcity passed 1.8 Million. • GXChain Capital was selected as masternode for ZB exchange, which will promote good projects to get listed at ZB.com. • LendChain is now live at Blockcity, users can invest with their GXS, BTC, and USDT for up to 30% annual percentage yield. • GXChain developers were invited to Blockchain Technology and Application Conference, we presented the progress of our project development from 2017–2018. Blockcity Academy GXChain Virtual Machine: is the environment for GXChain smart contracts, the first version will support EOS smart contract based on WebAssembly. Data Exchange Service(DES): is a service for data exchange, based on GXChain. DES support smart contract, which supports tri-party agreement for bookkeeping, and a peer to peer data exchange protocol based on IPFS. Blockchain as a Service(BaaS): encapsulation a lot blockchain system API to provide simple and handy service. GXChain BaaS: Smart contract services on GXChain, including triple-entry bookkeeping, data storage, and proof of existence, which could apply for copyright registration, electronic proof of existence, etc. This technology combines the advantages of data storage capability of IPFS and high-throughput capability of GXChain. Blockcity Pay: support all cryptocurrency in Blockcity as a payment for services. Team of GXChain Website: gxs.gxb.io/en/ Forum: forum.gxb.io Facebook: www.facebook.com/GXChain/ Twitter: twitter.com/gongxinbao Medium: https://medium.com/@GXS Telegram: t.me/GXB_International Github: github.com/gxchain/ Block Explorer: block.gxb.io/#/ GXS Trading platforms: https://medium.com/@gongxinbao/marketplace-to-trade-gxs-march-20th-2018-f27926110824