OpenChainGraph Suite · CONTRACT A3 · arch #5

Trade Finance Letter of Credit Lifecycle

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.
Reading mode (RUNBOOK): Run these steps in order. A trade-finance desk works LC terms, validation, and sanctions screening as one real transaction; note that sanctions screening lands last here, after the financing-economics step, when a desk should clear sanctions before pricing or committing to finance. That inversion is an ordering concern, tracked separately from this declaration.

LC analysis > MT700 field validation > DC vs LC comparison > forfaiting/factoring economics > trade sanctions compliance — composite trade-finance LC mandate.

OpenChainGraph · 5 Steps compliance mandate Hash-Anchored §4 chain_depth:5 Client-Side · Zero PII
Chain Topology — Trade Finance Lc Analyser → Mt700 Lc Field Validator → Dc Vs Lc Analyzer → Forfaiting Factoring Economics → Trade Sanctions Compliance Checker
§4 Execution Hash · Chain Definition Anchor
execution_hash:computing…
Market Rationale
Buyer: Trade Finance Structurer / Transaction Banking Officer
Forcing function: UCP 600 revision cycle; MLETR digital trade 2023; ICC digital standards push
Digital counterpart. These five steps are browser calculators over MT700/SWIFT fields, not hash-anchored nodes. For the provable digital-LC and eBL side of the same lifecycle, see the MLETR/eBL conformance validator and the Digital Letter-of-Credit Presentation Compliance chain.
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
Trade Finance Lc Analyser 50-trade-finance-lc-analyser
lc_terms and discrepancy_risk feed Stage 2 MT700 field validation
↓
2 D2 catalog
Mt700 Lc Field Validator 420-mt700-lc-field-validator
mt700_field_errors and swift_compliance feed Stage 3 DC vs LC analysis
↓
3 D3 catalog
Dc Vs Lc Analyzer 423-dc-vs-lc-analyzer
instrument_comparison and cost_delta feed Stage 4 forfaiting/factoring economics
↓
4 D4 catalog
Forfaiting Factoring Economics 425-forfaiting-factoring-economics
financing_economics and receivable_yield feed Stage 5 trade sanctions check
↓
5 TERMINAL · D5 catalog
Trade Sanctions Compliance Checker 426-trade-sanctions-compliance-checker
sanctions_clearance and composite_trade_mandate — final trade finance 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.