🎫 CBT - Crime Bound Token

Track Criminal Records using Non transferrable ERC721 Tokens (Inspired By: SBT- Soul Bound Token)

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✍️ Table of Contents

• About the Project
• Project Breakdown
  • Built With
• Getting Started
  • Installation
• Usage
• Contributions

💻 About The Project

📰 Introduction:

• Cops within the chain can easily track criminal records by sending non-transferrable NFT token, which is the CrimeBound Token. No need of storing the data in centralized way where criminals can behave anyhow they want to erase their data. Blockchain nodes are available by all the cop stations along the city. Thus every station knows what CBT has been received by a particular criminal. While punishing and investigating a culprit police can have a look at his CBT profile. That is checking his past criminal records along with its metadata which is integrated using IPFS distributed system for storing the metadata of the NFT.

• SBT(Soul Bound Token) for Crime Records

• Owner of the contract can mint the CBT to an address and can also add metadata which will be stored on IPFS

• CBT is a simple ERC721 token which is non transferrable and can not be burnt, thus acting as an identity token

• Deployed on Goerli Testnet

🔨 Project Breakdown

• Developing ERC721 contract. Making changes to this contract and giving it the Sould Bound properties. Changing the before token transfer and after token transfer phases.
• Deploying the contract using hardhat on goerli test network.
• Using Ethers JS for smart contract interaction and safely minting the CBT.
• Using IPFS for setting up the IPFS http client on the development server and adding metadata to the IPFS and receiving the IPFS hash for the CBT data.
• Using ReactJS for setting up IPFS infura client node, ethers.js and also for providing the development server.

🔧 Built With

• Frontend:
  • HTML
  • React
  • Ethers
  • JavaScript
  • IPFS HTTP Client
• Contract:
  • Solidity
  • Remix
  • Metamask
  • Hardhat

🚀 Getting Started

To get a local copy up and running follow these simple steps.

🔨 Installation

1. Clone the repo

git clone https://github.com/dhananjaypai08/CrimeBoundToken/

2. Installing dependencies and requirements

cd CrimeBoundToken
npm install ethers
npm install ipfs-http-client

3. Running the APP

npm start

🧠 Usage

Built version:

• npm v8.1.2
• Node v16.13.2

The Basic goal is to make criminal records for police accessible and easy to fetch for investigations. Reliable and data once minted cannot be deleted or erased which happens in centralized systems.

🤠 Contributions

Open for contributions. Just clone and follow the installation. Make changes and raise a PR detailing about the changes made.