Frontier Markets · Settlement T75 · T58 · T218 · T217 · T221 · T220 · T157 · T325 USD-Stablecoin Bridge ISO 20022 Zero PII

Timor-Leste × Bangladesh Stablecoin Settlement Bridge

Model a USD-pegged wholesale stablecoin settlement bridge between Timor-Leste (USD-dollarised, UTC+9, thin correspondent banking) and Bangladesh (BDT, bKash/BEFTN, UTC+6). Score three architectures — wholesale CBDC bridge, stablecoin escrow, nostro pre-funding — against a 3-hour business-hours overlap window. Size collateral pools for normal flow plus a 3× spike stress test, model repo sweep mechanics, and generate a full double-entry ISO 20022-aligned ledger schema. Boardroom-ready Policy Mandate export.

UTC Overlap
3.0 h
Business-hours window
TLS GDP 2024
~$2.0B
USD-dollarised economy
BGD Remittance
$22.4B
Annual inflow, 2024
Corridor Hops
3–5
Correspondent intermediaries
Architectures
3
CBDC · Stablecoin · Nostro
Schema
ISO 20022
pacs / camt aligned
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Corridor Scenarios
Corridor & Volume Assumptions
Total settlement value per business day
Bidirectional message count
Drives nostro/collateral asymmetry
Peak/avg ratio for stress test
BDT vol cushion on collateral
Overnight collateralised funding
TLS 09–18 ∩ BGD 09–18 (= 12–15 UTC)
Legacy SWIFT route depth
Deterministic · client-side · ~50 ms runtime
Panel 01 · Architecture Selector

Settlement Architecture Viability

Scores each architecture on liquidity, finality, regulatory fit, and operational risk
Panel 02 · Settlement & Time-Zone Diagnostics

Overlap Window, Intraday Buffer & SWIFT Cutoffs

Maps the 3-hour TLS–BGD business overlap against SWIFT MT103 / pacs.008 cutoffs

24-hour UTC Working Window Map

Working hours (one side) Overlap window (both sides) SWIFT cutoff conflict
Panel 03 · Collateral & Repo Engine

Pool Sizing, Spike Stress & Sweep Mechanics

Sizes collateral for normal-day flow + 3× spike, models overnight repo sweep economics
Stress Test — Spike Multiplier × Daily Volume
Repo Sweep Mechanics (Indicative)
Sweep Path Notional (USD) Haircut Net Funding Annualised Cost
Panel 04 · Accounting Schema Generator

ISO 20022-Aligned Double-Entry Ledger Schema

Account taxonomy + posting rules for a representative settlement cycle
Generated for the modelled corridor. Account codes follow IFRS / BIS Triennial conventions; ISO 20022 message identifiers from pacs.008 / pacs.009 / camt.054.