Introducing Quantum Echo Protocol (QEP)
The next evolution of WSEO: quantum-resistant scoring, multi-chain echo propagation across Polygon, BSC, Avalanche & Solana, and on-chain SBT certification — all live on mainnet.
Quantum Secure
Lattice-based hashing (Kyber-inspired) resistant to quantum computing attacks.
Multi-Chain Echo
Score propagation across Polygon, BSC, Avalanche & Solana simultaneously.
ZK Verification
Zero-knowledge Merkle proofs for private yet verifiable score registration.
🌌 What is the Quantum Echo Protocol?
QEP (Quantum Echo Protocol) is a decentralized system for predicting and verifying Web3 SEO scores across multiple blockchains. It extends the WSEO protocol with advanced capabilities that set a new standard for on-chain reputation:
- Quantum-resistant scoring using lattice-based cryptography (Kyber-inspired) to future-proof on-chain data against quantum computing threats.
- Multi-universe simulation generating 10 parallel score predictions across different blockchain networks — each adjusted by chain-specific factors.
- Reinforcement Learning (RL) on-chain that continuously improves predictions based on historical scoring patterns.
- Cross-chain propagation via LayerZero and Wormhole bridge infrastructure.
- Soulbound Tokens (SBTs) for on-chain certification of SEO quality scores ≥ 70.
- Zero-Knowledge proofs via Merkle proof verification for private score registration.
⛓️ Smart Contracts on Polygon Mainnet
QEP consists of 4 verified smart contracts on Polygon Mainnet (Chain ID 137), each handling a specific aspect of the protocol:
| Contract | Role | Address |
|---|---|---|
| QuantumEchoProtocol | Core QEP — echo generation, RL scoring, lattice hashing (UUPS Proxy) | 0x54a1...B448 |
| QEPBridgeHandler | Cross-chain messaging via LayerZero/Wormhole | 0x3aAf...381f |
| SEOBeaconV3Extension | QEP ↔ Beacon middleware, echo integration | 0x75C8...3bbf |
| SEOBeaconV3 | Core WSEO beacon — score storage, SBT minting | 0x24fb...A0AC |
All contracts are verified on PolygonScan, built with Solidity 0.8.25, OpenZeppelin libraries, and follow the UUPS upgradeable proxy pattern with onlyOwner authorization.
🌍 Multi-Chain Network
WSEO v4.0 operates across 4 blockchain networks, each with deployed and verified SEOBeaconV3 contracts:
Polygon (POL)
Full QEP suite: 4 contracts + SBT minting + echo generation. Chain ID 137.
BNB Chain (BSC)
SEOBeaconV3 deployed. Low-cost score registration. Chain ID 56.
Avalanche (AVAX)
SEOBeaconV3 deployed. Sub-second finality for real-time scoring. Chain ID 43114.
Solana
Anchor program with 6 instructions: ZK scores, SBTs, cross-chain relay.
📊 How QEP Scoring Works
The QEP pipeline transforms a URL into a verified, multi-chain score in 5 stages:
- Scrape: HTTP fetch of the target URL extracts 12 SEO signals — title, description, canonical, robots, Open Graph, H1 count, word count, HTTP status, content type, and SHA-256 content hash.
- Score: Weighted calculation across 9 criteria (HTTP 200: 30pts, HTTPS: 15pts, Title: 15pts, Description: 15pts, HTML content: 10pts, Canonical: 5pts, H1: 5pts, OG tags: 3pts, Body text: 2pts). A
noindexdirective applies a -25 penalty. - Echo Generation: The base score is hashed with a lattice function (SHA-256 of target + score + reportHash + timestamp), then 10 parallel simulations run across different chains with specific adjustment factors (Polygon: 100%, Ethereum: +50%, Arbitrum: +20%, Base: +10%, Optimism: +15%).
- Persistence: Results are stored in Supabase (
wseo_registry,wseo_analyses,wseo_scores) and optionally written on-chain via SEOBeaconV3. - Certification: Scores ≥ 70 can mint a Soulbound Token (SBT) as a permanent on-chain quality certificate with grade (A+ to F).
☀️ Solana Integration
The QEP extends to Solana through a dedicated Anchor program (634 lines of Rust), offering 6 on-chain instructions:
- initialize — Set up the protocol PDA (authority, fee, ZK Merkle root)
- register_score_with_zk — Register a score with Merkle proof verification
- register_score_public — Register a score publicly without ZK
- mint_sbt — Mint a Soulbound Token for scores ≥ 70 with automatic grading
- register_cross_chain_score — Relay EVM scores to Solana (oracle pattern)
- update_zk_merkle_root — Admin-only Merkle root update
The program uses Program Derived Addresses (PDAs) for deterministic account generation and stores full score metadata including target, confidence, IPFS CID, and ZK proof hash. The current status is pending deployment to Devnet.
⚡ Backend API
QEP is powered by a dedicated backend (wseo-core-engine) running on Railway as a Node.js/Fastify server:
| Endpoint | Description |
|---|---|
GET /v1/qep/status | QEP network status (chains, addresses, configuration) |
GET /v1/qep/echo/:target | Latest echo predictions for a given target |
GET /v1/qep/metrics | Aggregated protocol metrics |
POST /v1/scrape-score | Full pipeline: scrape → score → echo → persist → on-chain |
GET /v1/solana/program-status | Check if Solana program is deployed (real on-chain check) |
🔐 Security & Audit
Security is a core pillar of QEP. The protocol has undergone multiple layers of verification:
Slither Audit
Static analysis of all EVM contracts (Solidity 0.8.25). 111 issues — all low/informational (naming conventions, immutable suggestions, caching). 0 critical or high vulnerabilities.
Hardhat Tests
23 Solidity files compiled. Unit tests + integration tests for QEP core, beacon integration, and bridge handler — all passing.
Supabase RLS
Row Level Security enabled on all public tables. Write access restricted to service_role only. Insecure "Public Insert" policy removed.
API Protection
Rate limiting (30 req/min per IP), x-admin-key authentication for write endpoints, Zod schema validation on all inputs.
Smart contracts implement ReentrancyGuard on payable functions, Pausable for emergency stops, and strict input validation on all public functions. The UUPS proxy pattern restricts upgrades to onlyOwner.
📋 v3.0 vs v4.0 Comparison
| Feature | v3.0 | v4.0 (QEP) |
|---|---|---|
| Networks | Polygon only | ✅ Polygon + BSC + Avalanche + Solana |
| Scoring | Single-chain score | ✅ Multi-chain echo (10 predictions) |
| Cryptography | SHA-256 | ✅ Lattice-based (quantum-resistant) |
| ZK Proofs | ZK-ready (not active) | ✅ Merkle proof verification |
| Smart Contracts | 1 (SEOBeaconV3) | ✅ 4 EVM + 1 Solana program |
| Backend | Frontend API routes only | ✅ Dedicated backend (Railway) |
| Cross-chain | No | ✅ LayerZero + Wormhole bridge |
| Security Audit | No | ✅ Slither (0 critical) |
🚀 What's Next
- Solana program deployment — Build with Anchor CLI and deploy to Devnet, then Mainnet
- QEP on BSC & Avalanche — Deploy the full QuantumEchoProtocol suite beyond Polygon
- On-chain RL activation — Enable reinforcement learning weights that auto-tune based on historical patterns
- Cross-chain score relay — Live echo propagation between EVM chains and Solana via bridge infrastructure
Try the protocol today at /wseo and check the live status at /wseo/status.