OpenChainGraph Suite · CONTRACT A3 · arch #5

B2B Payments & AP Automation

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.

Invoice-to-payment orchestration > AP automation savings > supplier payment terms optimisation > orchestration vendor scorecard > ERP payment integration scoring — composite B2B AP automation mandate.

OpenChainGraph · 5 Steps payment mandate Hash-Anchored §4 chain_depth:5 Client-Side · Zero PII
Chain Topology — Invoice To Payment Orchestrator → Ap Automation Savings Calculator → Supplier Payment Terms Optimiser → Payment Orchestration Vendor Scorecard → Erp Payment Integration Scorer
§4 Execution Hash · Chain Definition Anchor
execution_hash:computing…
Market Rationale
Buyer: CFO / Head of Treasury at mid-to-large corporate or ERP vendor
Forcing function: e-invoicing mandates EU/VIDA 2028; PSD3 corporate payment rails; working capital cycle pressure
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 · 5 Steps
1 ROOT · D0 catalog
Invoice To Payment Orchestrator 132-invoice-to-payment-orchestrator
invoice_workflow and payment_orchestration feed Stage 2 AP automation savings
↓
2 D2 catalog
Ap Automation Savings Calculator 134-ap-automation-savings-calculator
automation_savings and process_gaps feed Stage 3 supplier payment terms optimiser
↓
3 D3 catalog
Supplier Payment Terms Optimiser 135-supplier-payment-terms-optimiser
optimal_terms and DPO_improvement feed Stage 4 orchestration vendor scorecard
↓
4 D4 catalog
Payment Orchestration Vendor Scorecard 137-payment-orchestration-vendor-scorecard
vendor_scores and selection_criteria feed Stage 5 ERP integration scoring
↓
5 TERMINAL · D5 catalog
Erp Payment Integration Scorer 139-erp-payment-integration-scorer
erp_integration_score and composite_ap_mandate — final B2B AP automation 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.