https://github.com/flowstake/photo-attestation
Photographic attestation with digital signatures for validation
https://github.com/flowstake/photo-attestation
computer-vision
Last synced: 2 months ago
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Photographic attestation with digital signatures for validation
- Host: GitHub
- URL: https://github.com/flowstake/photo-attestation
- Owner: flowstake
- Created: 2024-03-02T16:43:26.000Z (over 2 years ago)
- Default Branch: main
- Last Pushed: 2024-06-21T17:58:01.000Z (about 2 years ago)
- Last Synced: 2025-03-20T07:45:05.198Z (over 1 year ago)
- Topics: computer-vision
- Language: Python
- Size: 17.6 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# FlowStake Technology: Photo/Video Attestation Requirements
## User Interface and Experience (UI/UX)
- **Capture Interface:** Design an intuitive interface for users to easily capture photos or videos during their activities. This should include a clear, easy-to-use camera functionality within the app.
- **Guided Instructions:** Provide users with clear instructions on how to capture the required evidence. This might include tips on framing, lighting, and specific content that needs to be captured (e.g., a clear view of the user’s face, the activity environment, etc.).
- **Feedback Mechanism:** Implement a feedback mechanism that informs users if their photos or videos meet the required criteria or if they need to retake them.
## Technical Specifications
- **Resolution and Quality:** Set minimum resolution and quality standards for the photos and videos to ensure they are clear and usable for attestation purposes.
- **Format and Compression:** Determine acceptable file formats (e.g., JPEG, MP4) and implement compression algorithms that maintain quality while optimizing file size for efficient upload and storage.
- **Metadata Capture:** Ensure the app captures relevant metadata such as timestamp, GPS coordinates, and device information to accompany each photo or video for verification purposes.
## Security and Verification
- **Encryption:** Use end-to-end encryption to secure the photos and videos during upload and storage, ensuring that they cannot be tampered with.
- **Watermarking:** Implement digital watermarking to embed user-specific information within the photos or videos, making it difficult to use fraudulent media.
- **Blockchain Integration:** Store the attestation data on a distributed ledger (e.g., Hedera Hashgraph) to provide a tamper-proof record of the evidence. Each entry should include a hash of the photo or video file and its metadata.
## Data Storage and Management
- **Cloud Storage:** Utilize scalable cloud storage solutions (e.g., Firebase) to handle the large volume of media files. Ensure the storage system can handle peak loads during events.
- **IPFS Integration:** Use InterPlanetary File System (IPFS) for decentralized media storage. IPFS allows for efficient and distributed storage of media files, ensuring data is accessible and resilient.
- **Hash-Addressable Content:** Ensure all media files stored in IPFS are hash-addressable, meaning each file is referenced by its unique cryptographic hash. This guarantees data immutability and integrity, as any change in the file content will result in a different hash.
- **Retention Policies:** Define data retention policies to manage the lifecycle of the media files, including how long they will be stored and when they will be archived or deleted.
- **Access Control:** Implement strict access control measures to ensure that only authorized users can view or manage the attestation files.
## Attestation Process
- **Real-time Uploads:** Enable real-time uploading of photos and videos during the activity to provide immediate proof of participation and minimize post-activity fraud.
- **Peer Review System:** Allow for a peer review system where users can verify each other's submissions, enhancing community trust and engagement.
- **Automated Verification:** Develop algorithms to perform initial automated checks on the media files, such as verifying GPS data against the activity route or detecting signs of manipulation.
## User Notifications and Feedback
- **Upload Confirmation:** Notify users once their media files have been successfully uploaded and verified.
- **Verification Status:** Provide real-time updates on the verification status of their submissions, including any issues that need to be addressed.
- **Community Feedback:** Implement a system for users to receive feedback from peers and the platform on the quality and authenticity of their submissions.
## Compliance and Legal Considerations
- **Privacy Policies:** Ensure compliance with privacy regulations such as GDPR by clearly communicating how user data will be used, stored, and protected.
- **User Consent:** Obtain explicit consent from users for capturing and storing their media files as part of the attestation process.
- **Dispute Resolution:** Establish procedures for users to dispute verification results or raise concerns about privacy and data security.
## Integration with Other Features
- **Activity Feed:** Integrate the attested photos and videos into a social feed within the app, allowing users to share their achievements and engage with the community.
- **Smart Contracts:** Use Ethereum smart contracts to facilitate and enforce sports betting competitions, ensuring that the results based on attested activities are transparent and fair.
## IPFS for Media Storage and Hash-Addressable Content for Data Immutability
- **Decentralized Storage:** Leverage IPFS to store media files in a decentralized manner. This ensures high availability and resistance to censorship.
- **Content Hashing:** Utilize content hashing to ensure that each file can be uniquely identified and verified. The hash serves as a unique fingerprint for the file.
- **Data Integrity:** Guarantee data integrity by ensuring that any alteration in the media file changes its hash, thereby making tampering easily detectable.
- **Interoperability:** Ensure that the IPFS-stored media files can be accessed and verified across different systems and platforms, promoting interoperability and transparency.
By meeting these requirements, FlowStake technology can create a robust, secure, and user-friendly system for photo and video attestation, enhancing the credibility and engagement of the platform.
# FlowStake Technology: Photo/Video Attestation Platform
This project is built using Expo and React Native, integrating IPFS for media storage and blockchain for data immutability.
## Directory Structure
/FlowStakeApp
/assets
/components
/Camera.js
/PhotoAttestation.js
/VideoAttestation.js
/screens
/HomeScreen.js
/CaptureScreen.js
/ProfileScreen.js
/utils
/ipfs.js
/blockchain.js
App.js
app.json
package.json
babel.config.js
## Code Structure
### `App.js`
```javascript
import React from 'react';
import { NavigationContainer } from '@react-navigation/native';
import { createStackNavigator } from '@react-navigation/stack';
import HomeScreen from './screens/HomeScreen';
import CaptureScreen from './screens/CaptureScreen';
import ProfileScreen from './screens/ProfileScreen';
const Stack = createStackNavigator();
export default function App() {
return (
);
}
```
### `Homescreen.js`
```javascript
import React from 'react';
import { View, Text, Button, StyleSheet } from 'react-native';
export default function HomeScreen({ navigation }) {
return (
Welcome to FlowStake
navigation.navigate('Capture')}
/>
navigation.navigate('Profile')}
/>
);
}
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
},
});
```
### `CaptureScreen.js`
```javascript
import React from 'react';
import { View, Text, StyleSheet } from 'react-native';
import Camera from '../components/Camera';
export default function CaptureScreen() {
return (
Capture your activity
);
}
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
},
});
```
### `ProfileScreen.js`
```javascript
import React from 'react';
import { View, Text, StyleSheet } from 'react-native';
export default function ProfileScreen() {
return (
Profile
{/* Additional profile details can be added here */}
);
}
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
},
});
```
### `Camera.js`
```javascript
import React, { useState, useRef } from 'react';
import { View, Button, StyleSheet } from 'react-native';
import { Camera } from 'expo-camera';
import * as FileSystem from 'expo-file-system';
import uploadToIPFS from '../utils/ipfs';
export default function CameraComponent() {
const [hasPermission, setHasPermission] = useState(null);
const cameraRef = useRef(null);
React.useEffect(() => {
(async () => {
const { status } = await Camera.requestPermissionsAsync();
setHasPermission(status === 'granted');
})();
}, []);
const takePicture = async () => {
if (cameraRef.current) {
const photo = await cameraRef.current.takePictureAsync();
await uploadToIPFS(photo.uri);
}
};
if (hasPermission === null) {
return ;
}
if (hasPermission === false) {
return No access to camera;
}
return (
);
}
const styles = StyleSheet.create({
container: {
flex: 1,
},
camera: {
flex: 1,
},
buttonContainer: {
flex: 1,
backgroundColor: 'transparent',
flexDirection: 'row',
margin: 20,
},
});
```
### `ipfs.js`
```javascript
import * as IPFS from 'ipfs-core';
const ipfs = await IPFS.create();
const uploadToIPFS = async (fileUri) => {
try {
const file = await FileSystem.readAsStringAsync(fileUri, {
encoding: FileSystem.EncodingType.Base64,
});
const { cid } = await ipfs.add(Buffer.from(file, 'base64'));
console.log('File uploaded to IPFS with CID:', cid);
return cid;
} catch (error) {
console.error('Error uploading to IPFS:', error);
}
};
export default uploadToIPFS;
```
### `blockchain.js`
```javascript
import Web3 from 'web3';
const web3 = new Web3('https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID');
const smartContractAddress = 'YOUR_SMART_CONTRACT_ADDRESS';
const smartContractABI = [
// Your smart contract ABI
];
const contract = new web3.eth.Contract(smartContractABI, smartContractAddress);
export const addProofToBlockchain = async (userAddress, ipfsHash) => {
try {
const tx = await contract.methods.addProof(userAddress, ipfsHash).send({ from: userAddress });
console.log('Transaction successful:', tx);
return tx;
} catch (error) {
console.error('Error adding proof to blockchain:', error);
}
};
```
### `package.json`
```javascript
{
"name": "FlowStakeApp",
"version": "1.0.0",
"main": "node_modules/expo/AppEntry.js",
"scripts": {
"start": "expo start",
"android": "expo start --android",
"ios": "expo start --ios",
"web": "expo start --web"
},
"dependencies": {
"expo": "^46.0.0",
"expo-camera": "^12.2.0",
"react": "17.0.1",
"react-dom": "17.0.1",
"react-native": "0.64.2",
"react-native-web": "0.17.1",
"react-navigation": "^4.4.4",
"react-navigation-stack": "^2.10.4",
"ipfs-core": "^0.12.1",
"web3": "^1.5.2"
},
"devDependencies": {
"@babel/core": "^7.9.0"
},
"private": true
}
```
### `babel.config.js`
```javascript
module.exports = function(api) {
api.cache(true);
return {
presets: ['babel-preset-expo'],
};
};
```
### `app.json`
```javascript
{
"expo": {
"name": "FlowStakeApp",
"slug": "flowstakeapp",
"version": "1.0.0",
"orientation": "portrait",
"icon": "./assets/icon.png",
"splash": {
"image": "./assets/splash.png",
"resizeMode": "contain",
"backgroundColor": "#ffffff"
},
"updates": {
"fallbackToCacheTimeout": 0
},
"assetBundlePatterns": [
"**/*"
],
"ios": {
"supportsTablet": true
},
"android": {
"adaptiveIcon": {
"foregroundImage": "./assets/adaptive-icon.png",
"backgroundColor": "#ffffff"
}
},
"web": {
"favicon": "./assets/favicon.png"
}
}
}
```
FIN