deviant/Parameters/FIATm

Parameters / FIATm

Design-record artefacts for the FIATm family — sound-money notes for state currencies, on-chain, backed by base-layer BCH. m = MBA. USDm is the worked example; EURm, GBPm, JPYm, INRm, ARSm, TRYm are the other six chipnet-validated instances on the same DeviantOracleMBA template (snapshots 0136 USDm / 0137 EURm + cross-asset / 0138 6-asset market / 0144 GBPm+JPYm+INRm + merchant POS / 0160 ARSm+TRYm).

What lives here

File	Role
fiatm_synthesis_FOR-reading-first.md	Single-source FIATm overview — start here. Self-contained synthesis pulling the design record, the catalytic-converter hypothesis, the wallet-UI architectural naming, and the structural elaborations developed through snapshot 0163 into one reader-first document. ~700 lines. Cross-references the canonical sources rather than duplicating them. Written for a technically-engaged reader who wants the full picture in one pass.
fiatm-sovereign-asset.md	NEW (2026-06-20) — sovereign-asset design record. Sharpened framings not previously canonical: asset taxonomy (sovereign-native MBA vs trusted / cross-chain IOU, identity / backing-location / failure-mode table); gold-certificate-collapse-inverted thesis (broken fiat = "former certificate with scarce backing stripped, floating paper remained"; FIATμ = injecting scarce backing under the floating fiat face); reverse-lock (in FIATμ the scarce asset is what's locked, the fiat is only the projected face label — opposite of the gold-certificate convention); "unstablecoin" framing with three-honest-outcomes table (spend / save-and-grow / save-through-dip); §5 reflexive volatility properties (backing demand suppresses own volatility as it scales; basket diversification; stablecoins as a tailwind not competitor); §6 controller-simultaneity canonical statement ("single objective, both directions — maximize fairness/attractiveness of minting in, in every regime, while never touching the fixed redemption floor"). Complements rather than supersedes fiatm_complete-design_FOR-design-record.md.
fiatm_complete-design_FOR-design-record.md	The canonical FIATm design record. Family intro (§0.5), three-values / Greek-coinage framing (§7a), Artemision lineage / art-of-emission / universal-substrate / why-the-lag-exists (§7a.1), 180° reversal (§7), holder experience + global scale + lag-as-opportunity (§7b), magical reversal + institutional-action asymmetry (§8 / §8.1), five-layer §12 controller, oracle integrity stack (§14) + composed-oracle for non-USD FIATm (§14a), TVL / governance / maturity ladder, implementation status, calibration program (§22), historical back-test §20a, BCH/USD volatility appendix B. Renamed from usdm_… to fiatm_… in snapshot 0155.
usdm_sound-money-note_FOR-design-record.md	The original USDm-only conceptual note. Absorbed by the FIATm record above; retained as a historical artefact for the early framing.
usdm-and-market_diagram-report.html	USDm / market-integration diagram report (HTML render).
catalytic-converter-hypothesis_FOR-testing.md	HYPOTHESIS-STAGE (NOT yet a canonical design claim). Conjecture that the §12 rate-correction lag functions as a catalytic converter for speculative noise — absorbing synthetic-market volatility while arbitrage closes the gap with real BCH settlement. Testable predictions named; sim infrastructure path written. Promoted to a §12e or ADR only if simulation confirms.
transcripts/	Untracked by git (.gitignore excludes the path). Verbatim session logs + companion narrative for the design lineage. Files: 2026-05-27_session_usdm-family-and-controller.jsonl (raw 4.2 MB verbatim, 1,553 records, the original "stablecoin-mechanism / USDm-family-and-controller" session); design-journey.md (narrative — why and how decisions were made); framings-and-rejected-paths.md (quick-ref — pithy phrasings + rejected-path register + voice notes). Kept on disk, never committed (logs, not source).

What's adjacent but NOT in this folder

• Snapshots that describe FIATm work live under ../../snapshots/ (append-only history; do not move):
  • 0136 USDm round-trip · 0137 EURm cross-asset · 0138 6-asset market · 0144 GBPm+JPYm+INRm + merchant POS
  • 0147 five-layer controller + simulator · 0148 9-year back-test · 0149 doc updates with back-test · 0150 session synthesis
  • 0155 FIATm-level promotion · 0157 multi-redeem chipnet · 0158 §22 calibration sweep · 0159 hyperinflating back-test · 0160 ARSm+TRYm chipnet live + §7b/§14a
• Public-facing primer: ../../wiki/sound-money-primer.md (renamed BCHm → FIATm; pairs with the design record's §7 / §7a / §7b).
• Simulators + chipnet test scripts for FIATm live under ../../scripts/:
  • sim-usdm-controller.mjs · sim-usdm-historical-bch.mjs · sim-usdm-calibration-sweep.mjs (USDm-baseline)
  • sim-fiatm-historical.mjs · sim-fiatm-trajectory.mjs (multi-currency)
  • chipnet-multicurrency-mba-test.mjs (GBPm+JPYm+INRm genesis)
  • chipnet-fiatm-multi-redeem.mjs (multi-FIATm atomic burn proof)
  • chipnet-fiatm-hyperinflation-test.mjs (ARSm+TRYm genesis)
  • merchant-pos-checkout-demo.mjs
• Merchant POS module: ../../src/merchant-pos/ (FIATm-family POS primitives).
• ADRs touching FIATm: ../../wiki/decisions.md — ADR-0028 / ADR-0033 (token-vs-asset taxonomy); ADR-0039 (MBA divisibility); the §14a composed-oracle decision lives in the design record itself, not as a standalone ADR yet.
• Different-but-adjacent designs kept in the parent Parameters/ folder:
  • ../MBA_Shares/mba-shares_complete-design_FOR-design-record.md (MBA Shares — ADR-0042; same MBA family but an equity↔debt instrument, not a fiat sound-money note).
  • ../deviant_flow-and-bch-impact-model.md (broader BCH-impact economic model; references FIATm flow but isn't FIATm-specific).
  • ../deviant_technical_spec_v2_8.md (project-wide spec; FIATm appears as one of many asset families).

Cross-references inside this folder

Both files in this folder reference each other and the diagram report by bare filename (sibling references) — moving them to or from this folder requires no path edits as long as they stay siblings.

Naming convention reminder

Every fiat-backed FIATm instance carries an m suffix. Current: USDm / EURm / GBPm / JPYm / INRm / ARSm / TRYm. Future: any state currency on the same template (VESm / ZWLm / NGNm / EGPm / PKRm / IRRm / LBPm / … — VESm and ZWLm specifically need a piecewise sim treatment for the redenominations during the window, deferred per snapshot 0159).