TVX Formula 1.0.0

The TVX Formula reference connects the Society's Third Value Neutrality Standard to valuation inputs, transformation rules, and reproducible output.

Publication status

Published by the OpenForex Society, the standard-setting core of the OpenForex Foundation, as part of its established standards service to the open standards community.

Version

1.0.0

Last Updated

2026-09-24

Applied conversion and developer source

The inspected AFR converter applies the direct relationship target amount = source amount x V(source) / V(target). Its backend also computes structural values from weighted GDP, PPP GDP, population, efficiency, support, and anchor terms. The OpenForex TVX toolkit makes these observed calculations available as reusable TypeScript, with explicit policy inputs and provenance.

The SDK implements the conversion with decimal-string rational arithmetic, and exposes the structural model separately because fractional powers use floating-point arithmetic. The source includes the implementation boundaries and differences from the inspected application; institution-specific datasets and operating policies are not inherited as defaults.

Authority and scope

The OpenForex Society establishes the relationship A to TVX to B through its ratified Third Value Neutrality Standard. QASH occupies the third-value position. The monetary literature provides the governing foundation; implementation-specific equations, parameter sets, and machine-readable contracts are documented at their respective technical boundaries.

This page is the published implementation reference for TVX Formula 1.0.0 within OpenForex Standards. It explains the scope of the method and the evidence an implementation must identify. It does not substitute a newly invented equation for the Society's methodology.

Reference translation and valuation are different

If values for two instruments against a common unit are already supplied, their relative amount can be translated arithmetically. That operation does not explain how the common unit itself is valued, how observations are selected, or how a result becomes executable.

The GHS-USD walkthrough demonstrates only that translation with synthetic inputs. Its arithmetic must not be cited as an approved OpenForex valuation methodology.

Methodology documentation

Execution invariants

An implementation should preserve dimensional consistency: an output labelled in an instrument must have that instrument's units. A method must define its valid input domain and reject values outside it. A repeated calculation with identical inputs and policy should produce identical output.

Round-trip behavior must be assessed against the declared precision and fee assumptions. It should not be described as lossless where rounding, spreads, fees, or different snapshots affect the result.

Implementation evidence

An implementation evidence package includes the applicable equations, worked derivations, reference vectors, sensitivity analysis, numeric policy, and review results. The economic methodology and software behavior should be reviewed separately and then checked for consistency.

Read the foundational text, kernel reference, and oracle design.