******** Please read carefully ******** Blockchain dApp - Phase 2 of A Physical Activity Reward System (PARS)

Phase 2 of 2 –Blockchain dApp ***Because we will receive a lot of proposals, it is important that your first proposal or message to us shows: 1. You had previous experience working with blockchain dApp development and Smart Contract; Your recommended Blockchain platform suitable for high transaction rate with large user base (20M+). 3. Your own understanding of the project before we answer your questions. -------------------------------------------------------------- Background: Physical Activity Reward System (PARS) is a system that encourages people’s exercise with rewards in cryptocurrency. A user with our compatible wearable device can claim an FLL-RC token reward with a proof of physical activity (PoPA). PoPA is provided by the exercise data from our own wearable devices or our compatible/certified devices like Fitbit Ionic . This job offer is a part of the PARS system but independent of work of Phase 1, the fitness mobil application system. The job is essentially a blockchain dApp and Smart Contract development, later it will be integrated with Phase 1 to make a complete system. System description: An exercise reward application system with following components: 1) A reward App on mobile device with features: a. Collects physical activity data in real-time, from the API provided by the fitness app for a wearable device (e.g. our own device, Fitbit app’s API, Apple Health and WearOS). The physical activity data includes at least, i) 24/7 continuous (per minute) heart rate along with location information, ii) user profile with family and friend information. b. Accumulates physical activity data until a reward claim block is formed based on amount of physical activity. 2) A dApp function in the reward App with features: a. Submits reward claims to the blockchain; b. Receives FLL tokens awarded by the blockchain; c. Manages an FLL token wallet. 3) A smart contract on the blockchain with functions: a. Validates the claims from the dApp of mobile phones; b. Records the rewards for the claim, including a base reward and a random reward; c. Returns the rewards in FLL tokens to the dApp on mobile App. 4) A reward web application manages user accounts and database for token balances, claims and detailed physical activity data, maintains a platform for buy/sale of FLL tokens, manages vendor accounts publish vendor specific terms in smart contract and/or sale service/goods in FLL tokens. 5) The reward mobile app and web app are in-sync with proper UI to indicate a) the progress of physical activity towards a reward claim, b) the notification of a reward, c) management of token wallet and 4) purchase/sale via mobile or web. 6) There is a stand-alone part for our possible ICO/STO event, we uses a Dual-coin structure, the utility coin(FLL-RC) will be used in the Reward program (1-5 above) while the security coin(FLL-SC) will be used in an ICO or STO, a ICO/STO landing page and related components are required! Requirements on the development platforms: 1) Mobile devices (iOS and Android): a. Projects built on Xcode and Android Studio. Applications tested on iPhone 5 and up, Android 6.0 and up; 2) Web servers: a. Browsers: Chrome, IE, Firefox; b. AWS web application server. 3) Blockchain: a. Runs on an emulated blockchain as AWS node.js project online and serverless mode; b. Ready to be deployed to a public blockchain service, recommended by the developer.