TimeStone - Quantum-Resistant Time Capsule Platform

TimeStone is a decentralized time capsule platform that combines quantum-resistant encryption, blockchain technology, and IPFS storage to create secure, time-locked digital memories. The platform uses post-quantum cryptography (Kyber-768) to ensure digital assets remain secure against future quantum computing threats.

Architecture Overview

The TimeStone platform consists of five main components:

1. Frontend (Next.js + React)

Modern, responsive web interface with 3D animations
Wallet integration (RainbowKit + Wagmi)
Real-time dashboard for capsule management
Drag-and-drop file upload with multimedia support

2. Backend (Node.js + Express)

Post-quantum encryption service (Kyber-768)
IPFS integration for decentralized storage
RESTful API for frontend communication
Time capsule metadata management

3. Smart Contracts (Etherlink)

TimeOracleFileLocker contract for blockchain-based time locking
Secure file metadata storage on-chain
Automated unlock mechanisms with time verification

4. Time Oracle Smart Rollup (Rust)

Tezos smart rollup for decentralized time verification
Consensus-based timestamp validation
Quantum-resistant time oracle service
Multi-source time validation for accuracy
Rollup-based scalable time verification on Tezos

5. IPFS Storage Layer

Decentralized file storage using IPFS
Pinata service integration for reliable pinning
Content addressing for immutable file references

Security Features

Post-Quantum Encryption

Kyber-768: NIST-standardized post-quantum key encapsulation
AES-256-GCM: Symmetric encryption for data protection
Hybrid Approach: Combines classical and quantum-resistant cryptography

Blockchain Security

Etherlink Integration: Layer 2 scaling solution
Smart Contract Verification: Immutable time locking logic
Decentralized Storage: IPFS for censorship-resistant file storage

Time Oracle Consensus

Multi-Source Verification: Multiple timestamp sources for accuracy
Rollup-Based: Scalable time verification on Tezos
Consensus Algorithm: Ensures reliable time validation
Quantum-Resistant: Future-proof time verification mechanisms

Project Structure

timestone/
├── frontend/                 # Next.js React application
│   ├── src/
│   │   ├── app/             # App router pages
│   │   │   ├── landing/     # Landing page with 3D animations
│   │   │   ├── create/      # Time capsule creation
│   │   │   ├── dashboard/   # User dashboard
│   │   │   └── unlock/      # Capsule unlocking interface
│   │   ├── components/      # Reusable UI components
│   │   └── lib/            # Utility functions
│   └── package.json
├── backend/                  # Node.js Express server
│   ├── src/
│   │   ├── routes/          # API endpoints
│   │   │   ├── capsule.js   # Time capsule operations
│   │   │   ├── encryption.js # Kyber encryption/decryption
│   │   │   ├── ipfs.js      # IPFS file operations
│   │   │   ├── debug.js     # Debug endpoints
│   │   │   └── emergency.js # Emergency access
│   │   ├── services/        # Business logic
│   │   └── middleware/      # Express middleware
│   └── package.json
├── time-oracle-rollup/       # Tezos smart rollup
│   ├── src/
│   │   ├── lib.rs           # Main rollup implementation
│   ├── kernel.wasm          # Compiled rollup kernel
│   ├── Cargo.toml           # Rust dependencies
│   └── rollup_config.json   # Rollup configuration
├── Etherlink/               # Smart contracts
│   ├── contracts/
│   │   ├── TimeOracleFileLocker.sol  # Main contract
│   │   ├── TimeCapsule.sol           # Capsule management
│   │   └── TimeOracle.sol            # Oracle interface
│   ├── test/                # Contract tests
│   ├── scripts/             # Deployment scripts
│   └── hardhat.config.ts    # Hardhat configuration
└── README.md

Complete User Flow

1. Capsule Creation Flow

User → Frontend → Backend → Smart Contract → IPFS

User uploads file/message via frontend
Frontend sends to backend encryption service
Backend generates Kyber key pair
File encrypted with hybrid encryption (Kyber + AES)
Encrypted file uploaded to IPFS
File metadata and IPFS hash stored on Etherlink contract
User receives private key for future decryption

2. Time Verification Flow (Time Oracle Rollup)

Smart Contract → Time Oracle Rollup → Consensus → Verification

User requests capsule unlock
Smart contract queries time oracle rollup
Rollup collects timestamps from multiple sources
Consensus algorithm validates current time
Rollup provides verified timestamp to contract
Contract validates unlock conditions
Access granted or denied based on time verification

3. Capsule Unlocking Flow

User → Frontend → Smart Contract → Backend → IPFS → Decryption

User provides private key and file ID
Frontend verifies unlock conditions via smart contract
Contract confirms time has passed via oracle rollup
Backend retrieves encrypted file from IPFS
File decrypted using Kyber private key
Original content returned to user

Time Oracle Smart Rollup Details

Architecture

The Time Oracle Smart Rollup is implemented in Rust and deployed on Tezos. It provides decentralized time verification services to the TimeStone platform.

Core Components

Time Collection Module

Collects timestamps from multiple authoritative sources
NTP servers, blockchain timestamps, external APIs
Validates source reliability and accuracy

Consensus Engine

Implements Byzantine fault-tolerant consensus
Handles conflicting timestamps from different sources
Ensures majority agreement on current time

Verification Service

Processes time verification requests from smart contracts
Returns cryptographically signed timestamps
Maintains audit trail of all time verifications

Rollup Operations

Input Processing

rust // Time verification request structure struct TimeVerificationRequest { capsule_id: String, unlock_timestamp: u64, requester: Address, }

Output Generation

rust // Time verification response struct TimeVerificationResponse { current_timestamp: u64, is_unlockable: bool, signature: Signature, sources_count: u32, }

Deployment Configuration

Rollup Parameters

Kernel: Compiled WASM binary
Boot Sector: Initial state configuration
Reveal Data: External data access permissions
Origination Proof: Deployment verification

Integration with Etherlink

Cross-chain communication protocols
Message passing between rollup and smart contracts
State synchronization mechanisms

Technology Stack

Frontend

Next.js 15: React framework with App Router
TypeScript: Type-safe development
Tailwind CSS: Utility-first styling
Framer Motion: Smooth animations
Three.js: 3D visual effects
RainbowKit + Wagmi: Wallet integration
Ethers.js: Ethereum interaction

Backend

Node.js + Express: RESTful API server
Kyber-768: Post-quantum encryption
IPFS/Pinata: Decentralized file storage
Multer: File upload handling
Helmet: Security middleware

Blockchain

Etherlink: Layer 2 scaling solution
Solidity: Smart contract language
Hardhat: Development framework
Tezos Smart Rollup: Time oracle service

Time Oracle Rollup

Rust: Systems programming language
WASM: WebAssembly compilation target
Tezos Protocol: Rollup infrastructure
Cryptographic Libraries: Signature and verification

Infrastructure

IPFS: Decentralized storage
Pinata: IPFS pinning service
Web3.Storage: Alternative IPFS gateway

Getting Started

Prerequisites

Node.js 18+
Rust (for rollup development)
Hardhat (for smart contracts)
IPFS node or Pinata account
Tezos development tools

Frontend Setup

cd frontend
npm install
npm run dev

Backend Setup

cd backend
npm install
# Set environment variables
cp .env.example .env
npm run dev

Smart Contract Setup

cd Etherlink
npm install
npx hardhat compile
npx hardhat test
npx hardhat deploy

Time Oracle Rollup Setup

cd time-oracle-rollup
cargo build --target wasm32-unknown-unknown --release
# Deploy rollup to Tezos testnet
octez-smart-rollup-node-alpha run operator

Deploy Tezos Smart Rollup (Time Oracle)

Step 1 – Become the tezos user

sudo adduser tezossudo -su tezos

Step 2 – Run Tezos L1 Node

octez-node run \  --data-dir /var/tezos/node \  --rpc-addr 127.0.0.1:8732

Wait until bootstrapped (may take 20–30 minutes).

Step 3 – Run Smart Rollup Node

octez-smart-rollup-node run \  --data-dir /var/tezos/smartrollup_sr1CWGm \  --rollup sr1CWmH7T4ujK34pkFebfKpVQFeaxjvwjR2

This uses the pre‑built rollup. To originate your own use: octez-smart-rollup-originator .... Tip: Visit the Tezos faucet and claim at least 12000 test tokens to cover rollup origination costs.

Step 4 – Folder Permissions Fix

sudo chmod -R 755 /home/user/timestone
sudo chown -R tezos:tezos /home/user/timestone/frontend/.next
sudo chown -R tezos:tezos /home/user/timestone/frontend/node_modules

Once running, integrate the rollup address into .env files as:

Environment Variables

Backend (.env)

PORT=3001
IPFS_NODE_URL=https://ipfs.infura.io:5001
WEB3_STORAGE_TOKEN=your_web3_storage_token
NODE_ENV=development
CORS_ORIGIN=http://localhost:3000
TIME_ORACLE_ROLLUP_ADDRESS=your_rollup_address
TEZOS_RPC_URL=https://rpc.ghostnet.teztnets.xyz
TIME_ORACLE_ROLLUP_ADDRESS=sr1CWGmH7T4ujK34pkFebfKpVQFeaxjvwjR2

Frontend (.env.local)

NEXT_PUBLIC_BACKEND_URL=http://localhost:3001
NEXT_PUBLIC_CONTRACT_ADDRESS=your_contract_address
NEXT_PUBLIC_CHAIN_ID=your_chain_id
NEXT_PUBLIC_ROLLUP_ADDRESS=your_rollup_address

Time Oracle Rollup (.env)

TEZOS_NODE_URL=https://rpc.ghostnet.teztnets.xyz
ROLLUP_ADDRESS=your_rollup_address
OPERATOR_KEY=your_operator_private_key
DATA_DIR=./rollup_data

API Endpoints

Time Capsules

POST /api/capsule/create - Create new time capsule
GET /api/capsule/:id - Get capsule metadata
POST /api/capsule/unlock - Unlock time capsule
GET /api/capsule/stats - Get service statistics

Encryption

POST /api/encrypt/keypair - Generate Kyber key pair
POST /api/encrypt/data - Encrypt data
POST /api/encrypt/decrypt - Decrypt data
POST /api/encrypt/validate - Validate key pair

IPFS

POST /api/pinata/upload - Upload file to IPFS
GET /api/pinata/download/:cid - Download from IPFS
DELETE /api/pinata/delete/:cid - Delete from IPFS

Time Oracle

POST /api/oracle/verify-time - Request time verification
GET /api/oracle/status - Get rollup status
GET /api/oracle/history/:capsule_id - Get verification history

Security Considerations

Quantum Resistance

Kyber-768 provides protection against quantum attacks
Hybrid encryption combines classical and post-quantum methods
Regular key rotation recommended for long-term storage

Smart Contract Security

Time-based unlocking prevents premature access
Multi-signature support for high-value capsules
Emergency access mechanisms for critical situations

Time Oracle Security

Multi-source timestamp validation
Byzantine fault tolerance
Cryptographic proof of time verification
Audit trail for all operations

Data Privacy

Files encrypted before IPFS storage
Private keys never stored on servers
Zero-knowledge time verification

Use Cases

Personal Time Capsules

Birthday messages for future selves
Graduation letters to children
Anniversary surprises
Legacy messages

Business Applications

Contract time locks
Escrow services
Document versioning
Compliance requirements

Creative Projects

NFT time releases
Art project reveals
Music album drops
Book chapter releases

Future Enhancements

Planned Features

Multi-chain Support: Ethereum, Polygon, Arbitrum
Advanced Encryption: Lattice-based cryptography
Social Features: Shared time capsules
Mobile App: iOS and Android applications
AI Integration: Content analysis and categorization

Scalability Improvements

Layer 2 Solutions: Optimistic rollups
Sharding: Horizontal scaling
CDN Integration: Global content delivery
Caching: Redis-based performance optimization

Contributing

Fork the repository
Create a feature branch
Make your changes
Add tests
Submit a pull request

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

NIST: For post-quantum cryptography standards
Tezos Foundation: For smart rollup technology
IPFS: For decentralized storage
Etherlink: For Layer 2 scaling solution

TimeStone - Where memories meet the future of cryptography.

Name		Name	Last commit message	Last commit date
Latest commit History 77 Commits
Etherlink		Etherlink
Time-oracle-rollup		Time-oracle-rollup
backend		backend
frontend		frontend
Readme.md		Readme.md

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