Stone is a Distributed Application (Dapp) running on the Ethereum Blockchain. It allows you to :

• Save arbitrary text on the InterPlanetary File System (IPFS )
• Receive a receipt for your text submission
• Prove time of submission (via block timestamp)

Submission price collected by the contract: 0.001 ETH

App live at: https://stone-dapp.firebaseapp.com

Deployed Contract on Rinkeby: 0x481f5c806e4af895739cc745de1c799aa16a0682

• Framework : Truffle
• Smart contracts : Solidity
• Front End: React

To start private network:

testrpc

Alternatively you can run a local Rinkeby testnet node:

geth --rinkeby --rpc --rpcapi db,eth,net,web3,personal --unlock="<DEPLOYER_ADDRESS>"

Copy truffle-config.js to truffle.js and make any network config changes

To deploy contract:

truffle migrate

To run mocha tests :

truffle test

To run app locally :

npm run start