OpenChainGraph Suite · ART-357 · Basel III Endgame 2026 Reproposal · Capital

Basel 2023-vs-2026 Capital-Delta Comparator

Run the same exposure book through the 2023 Basel III Endgame NPR risk-weight framework and the 2026 reproposal (2026-03-19, three NPRs) framework side by side. See the credit-RWA delta, the operational-risk (SMA business-indicator) delta, and the resulting minimum-capital delta — the "reproduce the $87.7bn relief story on OUR book" question every large US bank is running right now. Representative risk-weight buckets, not an exhaustive regulatory table. rule_status: proposed — final rule expected ~Q4 2026.

Rule Status: Proposed Basel III Endgame 2026 Reproposal Capital Delta Not Regulatory Advice
🔒 All computation runs locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
Exposures
Operational Risk
Annual business-indicator amount (income-statement based), simplified single-bucket SMA coefficient, ILM neutralized both years.
Portfolio Summary
Asset classAmountRW 2023RW 2026RWA 2023RWA 2026
Totals
Execution Hash (SHA-256)

Ask your agent

Copy this paragraph into Claude, OpenClaw, or any MCP-aware agent to run this exact tool, with this sample, and verify the artifact.

Run the AINumbers MCP tool `compare_basel_2023_vs_2026`. Task: Run the same portfolio through the 2023 Basel III Endgame NPR risk-weight framework and the 2026 reproposal (2026-03-19, three NPRs) framework, then reports the RWA and minimum-capital delta -- the 'reproduce the $87.7bn relief story on OUR book' tool.
Call it with arguments: {"policy_parameters":{"exposures":[{"asset_class":"residential_mortgage_low_ltv","amount":5000000},{"asset_class":"corporate_investment_grade","amount":3000000},{"asset_class":"retail_other","amount":2000000},{"asset_class":"off_balance_sheet_commitment","amount":1000000}],"business_indicator":800000}}
Verify before trusting: call `verify_execution_hash` on mcp.ainumbers.co (https://mcp.ainumbers.co/mcp) with the parameter `claimed_hash` set to the returned `execution_hash`, passing the full artifact the run returned (the object containing `policy_parameters` + `output_payload` + `execution_hash`; equivalently `policy_parameters` + `output_payload` with `claimed_hash`), not the bare hash string.
Return the ledger link https://ledger.ainumbers.co/ so a human can re-verify without contacting us.
PII rule: All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
Open the tool with the sample prefilled: https://ainumbers.co/chaingraph/art-357-basel-2023-vs-2026-capital-delta-comparator.html#p=v1.H4sIAAAAAAAA_wEZAeb-eyJleHBvc3VyZXMiOlt7ImFzc2V0X2NsYXNzIjoicmVzaWRlbnRpYWxfbW9ydGdhZ2VfbG93X2x0diIsImFtb3VudCI6NTAwMDAwMH0seyJhc3NldF9jbGFzcyI6ImNvcnBvcmF0ZV9pbnZlc3RtZW50X2dyYWRlIiwiYW1vdW50IjozMDAwMDAwfSx7ImFzc2V0X2NsYXNzIjoicmV0YWlsX290aGVyIiwiYW1vdW50IjoyMDAwMDAwfSx7ImFzc2V0X2NsYXNzIjoib2ZmX2JhbGFuY2Vfc2hlZXRfY29tbWl0bWVudCIsImFtb3VudCI6MTAwMDAwMH1dLCJidXNpbmVzc19pbmRpY2F0b3IiOjgwMDAwMH2bAVzoGQEAAA