Skip to content
Branch: master
Find file History
Latest commit 2f979c6 Jul 11, 2019
Type Name Latest commit message Commit time
Failed to load latest commit information.
build/contracts added project Jul 11, 2019
client added project Jul 11, 2019
contracts added project Jul 11, 2019
migrations added project Jul 11, 2019
test added project Jul 11, 2019
LICENSE added project Jul 11, 2019 added project Jul 11, 2019
deployed_addresses.txt added project Jul 11, 2019 added project Jul 11, 2019 added project Jul 11, 2019
truffle.js added project Jul 11, 2019

Invest-y-gative: Reinventing The Online News Economy

The dApp produced for this hackathon is a Proof-of-Concept core component of the Invest-y-gative project. It is the submissions layer (the submission box) and utilizes the Ethereum blockchain and IPFS to advance:

  • source/journalist protection;
  • source material verification (notarization) for documents, video, audio, etc.;
  • censorship resistance; and
  • the methodology of scientific journalism which publishes primary (and all) source material used to publish the investigative report.

This submission box uses IPFS as a peer-to-peer hosting platform. It utilizes the IPFS hash of files as Proof-of-Existence and stores the proofs on the Ethereum blockchain. Additionally, this notary returns a transaction receipt certifying that the IPFS hash was registered on the blockchain.

Please note that this is an Proof-of-Concept and I am still building out specifications and squashing bugs.

Below are instructions for spinning up a local instance.

Getting Started

The environment for this implementation relies upon:

  • Linux (Debian Stretch)
  • Truffle v5.0.26
  • Ganache GUI v2.0.2
  • NPM 6.10.0
  • Infura gateway API
  • IPFS


* ipfs-http-client: 29.0.1
* openzeppelin-solidity: 2.1.2
* react: 16.6.3
* react-dom: 16.6.3
* react-scripts: 2.1.3
* web3: 1.0.0-beta.37

How to install:

$ tar xvfz go-ipfs.tar.gz (make sure the filename is correct) $ cd go-ipfs $ ./, then to initialize run ipfs init.

To spin this implementation up on your own machine, follow these steps:

  • clone this repository: git clone ;
  • cd into the root directory ‘Invest-y-gative’: cd Invest-y-gative;
  • then cd into the directory titled 'client': cd client;
  • once inside the client directory, to install dApp packages, run: npm install
  • run Ganache GUI (click the AppImage file);
  • use the mnemonic code that Ganache provides to open MetaMask. Place the mnemonic in MetaMask’s option to ‘Import using account seed phrase’, and initialize your account.
  • in another terminal, also in the root directory, run $ truffle develop;
  • in another terminal, cd to ‘Invest-y-gative/client’, run $ npm run start;

This last step will initialize a local implementation of this project and load in your browser at: http://localhost:3000/ . You will be able to upload a file from your local disk to IPFS and have the file’s hash returned in your browser.


Chris Spannos - ConsenSys Beyond Blockchain Hackathon 2019 - Breaking News: Reinventing The Online News Economy

You can’t perform that action at this time.