{"status": "ok", "service": "QCN Research x402 Endpoint", "stage": "叠加部署 · Base 主网 · cloudflared 出站隧道", "network": "eip155:8453", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "facilitator": "https://facilitator.payai.network", "onchain_settlement_by_server": false, "public_reachable": true, "public_base_url": "https://x402.qcnpy.cn", "discovery": {"serviceName": "QCN Factor Index", "tags": ["quant", "factors", "crypto", "research"], "landing": "/", "openapi": "/openapi.json", "well_known": "/.well-known/x402"}, "note": "仅 127.0.0.1 监听，公网由 cloudflared 出站隧道转发；未改任何入站规则/DNS。", "catalog": [{"path": "/v1/health", "price_usdc": 0.0, "paid": false}, {"path": "/v1/factors/index", "price_usdc": 0.001, "paid": true}, {"path": "/v1/research/validity", "price_usdc": 0.005, "paid": true}, {"path": "/v1/factors/f1", "price_usdc": 0.01, "paid": true}, {"path": "/v1/factors/f2", "price_usdc": 0.01, "paid": true}, {"path": "/v1/factors/f3", "price_usdc": 0.01, "paid": true}, {"path": "/v1/factors/f4", "price_usdc": 0.01, "paid": true}, {"path": "/v1/factors/f5", "price_usdc": 0.01, "paid": true}, {"path": "/v1/factors/f6", "price_usdc": 0.01, "paid": true}, {"path": "/v1/factors/f7", "price_usdc": 0.01, "paid": true}], "disclaimer": "Research baseline based on public on-host backtest artifacts. NOT live signals, NOT investment advice. All factors are rated not-tradable (样本不足, bootstrap=null). Headline OOS Sharpe 15.05 / 5.377 are shard-screening artifacts and MUST NOT be treated as performance. For research/reference only."}