Institutional Shield Desk SLA & Operating Terms
High-Frequency Autonomous Anomaly Sentry SLA specifications, sub-second incident alerting rules, sub-15ms tourniquet proxy switchovers, and 100% on-chain escrow guarantee.
01 // Core Operating Philosophy: The Sentry Paradigm
0xStack Institutional Shield is engineered strictly as an active anomaly sentry, not a general-purpose, pass-through RPC relay or caching conduit. Client trading desks and quantitative liquidators maintain primary infrastructure through dedicated providers (e.g., Alchemy, QuickNode).
Institutional Shield operates upstream as a dedicated watchdog inspecting canonical block heights, subgraphs, AMM liquidity tick intervals, and RPC latency across multi-chain ecosystems (Base, Ethereum, Arbitrum, Polygon, Optimism).
02 // Service Level Guarantees (SLA)
| Metric | Target Specification | Enforcement Mechanism |
|---|---|---|
| Incident Alert SLA | < 1,000 ms | Edge-memory evaluation; non-blocking ctx.waitUntil parallel push |
| Diagnostic Ingress Ceiling | 120 req / minute | Edge sliding-window limiter; prevents proxy abuse and isolates compute |
| Circuit Breaker Timeout | 1,500 ms maximum | AbortController boundary prevents downstream hangs from degrading edge loops |
| Edge Network Availability | 99.95% uptime | Global Cloudflare Edge network deployment across 300+ PoPs |
| Authentication Standard | Zero-Trust SHA-256 | Key hashes evaluated in constant time (timingSafeEqualHex); zero plaintext |
03 // Incident Severity Matrix & Dispatch Criteria
- Indexing Stall: Subgraph lag ≥ 2x configured threshold.
- Canonical Block Drift: State ≥ 2 blocks behind canonical tip.
- Failover Depletion: Primary and fallback return 5xx or fail.
- RPC Latency Spike: Upstream RTT > 800ms across consecutive probes.
- Transient Lag: Subgraph lag between 1x and 2x threshold.
- Basis Gap: NAV basis variance exceeds 50 bps.
🛡️ 100% On-Chain Escrow Guarantee
If the 0xStack Autonomous Sentinel fails to intercept any confirmed ≥ 2-block sequencer drift during an active subscription epoch, 100% of the Base USDC retainer is refunded automatically on-chain without human arbitration.