OpenChainGraph Suite · CONTRACT A3 · arch #5

Reinsurance & Catastrophe Risk

Note (dated 2026-08-04): a chain composes independent computations performed in an analytical order. No step's output is carried into the next step by the execution model; each step computes from its own declared inputs. This is true of every chain on this site, including chains whose per-step copy below reads as a data handoff.

Reinsurance burning-cost pricing > parametric trigger design > cyber accumulation modelling > P&C combined-ratio analysis — composite reinsurance risk mandate.

OpenChainGraph · 4 Steps risk control Hash-Anchored §4 chain_depth:4 Client-Side · Zero PII
Chain Topology — Reinsurance Burning Cost Pricer → Parametric Trigger Designer → Cyber Insurance Accumulation Modeler → Pc Combined Ratio Analyzer
§4 Execution Hash · Chain Definition Anchor
execution_hash:computing…
Market Rationale
Buyer: Reinsurance Underwriter / Cat Modelling Actuary
Forcing function: ICS 2.0 global reinsurance capital standard; Lloyd's cat model requirements
Live Execution

This page is the chain definition (plan). To run the chain step by step in your browser, with each step's kernel executing in-page and a composite hash over the outputs, open the live runner:

▶ Run this chain in your browser
Chain Stages · 4 Steps
1 ROOT · D0 catalog
Reinsurance Burning Cost Pricer 456-reinsurance-burning-cost-pricer
burning_cost_price and loss_load feed Stage 2 parametric trigger design
↓
2 D2 catalog
Parametric Trigger Designer 458-parametric-trigger-designer
parametric_terms and trigger_calibration feed Stage 3 cyber accumulation model
↓
3 D3 catalog
Cyber Insurance Accumulation Modeler 461-cyber-insurance-accumulation-modeler
cyber_accumulation_limits and correlation feed Stage 4 P&C combined-ratio analysis
↓
4 TERMINAL · D4 catalog
Pc Combined Ratio Analyzer 455-pc-combined-ratio-analyzer
combined_ratio and reinsurance_adequacy — final reinsurance risk mandate
▶ Run this chain (live) browser · real execution · composite §4 hash
Export Artifacts
Download the §4 chain definition artifact (hash-anchored composite JSON) or the §13.11 W3C Verifiable Credentials view. Both derive from the chain definition — no new hash is minted. Available after hash computation.