The Technical Blueprint

The DataConsent Protocol

DataConsent is more than a dashboard. It is a decentralized protocol designed to standardize how third-party applications request and respect user privacy on the blockchain.

Smart Contract Architecture

The core logic is deployed as an immutable SovereignGate contract on the Ethereum Sepolia testnet.

  • Solidity ^0.8.0
  • Gas-optimized Mappings
  • Non-Custodial Design

Data Sovereignty Layer

Uses cryptographic proofs to manage consent. No central server stores your privacy preferences.

  • On-chain Verification
  • Private Key Authorization
  • Global State Consistency

Real-time Finality

Leverages the security of Ethereum to ensure that once access is revoked, it is permanent and auditable.

  • Transaction Receipts
  • Event Emissions
  • Public Ledger Audit
SovereignGate.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract SovereignGate {
    // Mapping of (User Address => (App Address => Revoked Status))
    mapping(address => mapping(address => bool)) public isRevoked;

    /**
     * @dev Permanently revokes consent for a specific third-party application.
     * This action is recorded on the blockchain and cannot be reversed by central authorities.
     */
    function revokeConsent(address app) public {
        isRevoked[msg.sender][app] = true;
    }
}

Protocol Workflow

01

Identity Binding

Users connect their Ethereum wallet (MetaMask), establishing a cryptographic link between their on-chain identity and the protocol.

02

Action Authorization

When a 'Revoke' action is triggered, Ethers.js generates a transaction payload that must be signed by the user's private key.

03

State Modification

The transaction is broadcast to the Sepolia Network. Miners validate the request and update the smart contract mapping.

04

Immutable Audit

Third-party apps query the 'isRevoked' mapping. If true, they are programmatically denied access to the user's data stream.