OpenChainGraph Suite · CONTRACT A3 · arch #5

Card Scheme Dispute Management

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.

Card dispute reason-code mapping > card economics optimisation > chargeback representment building — composite card scheme dispute management mandate.

OpenChainGraph · 3 Steps compliance mandate Hash-Anchored §4 chain_depth:3 Client-Side · Zero PII
Chain Topology — Card Dispute Reason Code Mapper → Card Economics Optimizer → Chargeback Representment Builder
§4 Execution Hash · Chain Definition Anchor
execution_hash:computing…
Market Rationale
Buyer: Head of Dispute Management / Chargeback Officer at acquirer or merchant services firm
Forcing function: Visa/MC dispute rule updates 2024; CNP fraud chargeback liability shift; PSR representment windows
Live Execution

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Chain Stages · 3 Steps
1 ROOT · D0 catalog
Card Dispute Reason Code Mapper 227-card-dispute-reason-code-mapper
dispute_reason_codes and representment_eligibility feed Stage 2 card economics optimisation
↓
2 D2 catalog
Card Economics Optimizer 85-card-economics-optimizer
card_cost_impact and dispute_economics feed Stage 3 chargeback representment builder
↓
3 TERMINAL · D3 catalog
Chargeback Representment Builder 41-chargeback-representment-builder
representment_package and composite_dispute_mandate — final card dispute mandate
▶ Run this chain (live) browser · real execution · composite §4 hash
Export Artifacts
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