OpenChainGraph Suite · CONTRACT A3 · arch #5

Exchange Assurance Pack

Custody segregation ratio > asset/liability coverage > PoR liabilities composer > best-execution recompute: composite exchange-assurance mandate.

OpenChainGraph · 4 Steps attestation mandate Hash-Anchored §4 chain_depth:4 Client-Side · Zero PII
Chain Topology: Custody Segregation Ratio → Asset Liability Coverage → PoR Liabilities Composer → Best Execution Recompute
§4 Execution Hash · Chain Definition Anchor
execution_hash:computing…
Market Rationale
Exchange / custodian risk and assurance officer
custody-segregation, proof-of-reserves and best-execution posture checks a jurisdiction-neutral exchange assurance pack, independent of any single regime's filing calendar
Chain Stages · 4 Steps
1 ROOT node
Custody Segregation Ratio art-538-custody-segregation-ratio
segregation_ratio and status feed Stage 2 asset/liability coverage as the custody-side input to the exchange's solvency picture
↓
2 D2 node
Asset Liability Coverage art-539-asset-liability-coverage
coverage_ratio and surplus_shortfall_musd feed Stage 3 PoR-liabilities composer as balance-sheet context for the reported liabilities figure
↓
3 D3 node
PoR Liabilities Composer art-540-por-liabilities-composer
composite_determination and reserve_to_liability_ratio feed Stage 4 best-execution recompute, completing the reserves side of the assurance pack
↓
4 TERMINAL · D4 node
Best Execution Recompute art-541-best-execution-recompute
pct_at_or_better and avg_price_improvement_bps complete the pack, closing the composite exchange-assurance mandate
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.