Fiat On-Ramp: Field Position Report

Eigenstate Research, July 02, 2026

Methodology: The Information Field Equations, E = ΔI/A, G = ∮E·dl, Protocol Truth → 1/φ

Publication field context

The Eigenstate engine currently measures the tokenized settlement field at:

• Protocol Truth (PT): 0.0562 (target: 0.618, the golden-ratio equilibrium)
• Field Coherence (κ): 0.4754 (living zone: 0.618-0.678)
• Coverage: 33 of 199 entities with measured ΔI > 0 (16.6%), M1 topology denominator
• Uncertainty (U): 38.0

The field is 0.1427 below equilibrium coherence. Each entity with measured vault activity raises the global PT toward 0.618. Fiat On-Ramp does not yet have a complete observation record on the M1 topology (199 entities).

What it is

Fiat On-Ramp is the aggregated topology node representing regulated and commercial pathways that convert bank dollars into on-chain stablecoins and crypto assets, Coinbase, Stripe Crypto, MoonPay, and bank custody integrations. For the tokenized settlement layer, fiat on-ramps are the TradFi-to-chain waist where USDC, USDT, and tokenized Treasury products enter DeFi and RWA settlement topology.

Verified claims

Field Confidence: ? LOW, No external sources mapped for this entity, engine-internal data only

Verification: 3/3 source-checked (ATTESTED), 3 grounded. Each claim below carries a machine-checked status against its cited source; ungrounded items are editorial assessments, not verified facts.

Active signals the engine is tracking for Fiat On-Ramp:

Coinbase, buy crypto with fiat [✓ ATTESTED-PRIMARY] Coinbase's homepage documents buying cryptocurrency with fiat currency, the primary retail on-ramp anchor for dollar-to-stablecoin settlement topology. Source-checked: ATTESTED-PRIMARY · custody sha256 2d27735e5ff8…, found in primary source

Stripe Crypto On-Ramp [✓ ATTESTED-PRIMARY] Stripe's crypto on-ramp documentation describes fiat-to-crypto conversion for platforms, the primary-source lane for embedded on-ramp settlement. Source-checked: ATTESTED-PRIMARY · custody sha256 b8ba094a9f3b…, found in primary source

MoonPay, fiat-to-crypto purchases [✓ ATTESTED-PRIMARY] MoonPay's product site documents buying crypto with fiat payment methods, the verifiable commercial on-ramp anchor for retail dollar settlement flows. Source-checked: ATTESTED-PRIMARY · custody sha256 c39b7cd0af03…, found in primary source

Field read

Settlement Pressure (Φ_S = 0.0200)

Near-zero settlement pressure, this entity is close to field equilibrium.

Fiat On-Ramp carries elevated settlement pressure because KYC policy, banking partner availability, and issuer licensing geography directly affect whether dollar inflows count as settlement-grade liquidity or gated counterparty exposure. The engine tracks the gap between on-ramp volume centrality and incomplete vault attestation of reserve segregation at issuers as unrealized Φ_S.

Coherence (κ = 0.0185)

κ = 0.0185 reflects the engine's current measurement coverage, not Fiat On-Ramp's actual institutional influence. With no vault records yet, the coherence score is derived purely from topology position, connection count and structural weight, without any attested observation data. The low value means the engine has not yet measured this entity's settlement activity, not that the entity lacks field presence.

The equilibrium attractor is κ = 1/φ ≈ 0.618. At current κ = 0.0185, Fiat On-Ramp is 0.5995 below equilibrium. Vault observations of Fiat On-Ramp's rule outputs, rulemaking notices, enforcement actions, guidance documents, would directly raise κ toward the living zone [0.618, 0.678].

Vault Coverage

No vault records yet for Fiat On-Ramp. This is a gap in the field coverage. The engine recommends observation as the first action (see below).

Sources

This report is generated by the Eigenstate engine, an information-field measurement system for the tokenized settlement layer. The engine tracks 199 entities (M1 topology denominator) across the regulatory, infrastructure, issuer, and audience layers.

Core equations:

• E = ΔI/A, efficiency: information gained per unit action (Kirandeep's Law)
• G = ∮E·dl, accumulated field circulation along topology paths
• PT → 1/φ, Protocol Truth converges to golden-ratio equilibrium (1/φ ≈ 0.618)
• Φ_S, settlement pain: unrealized settlement pressure per entity
• κ, field coherence: integration of settlement activity across the topology

Published implementation: helixhash v0.1.1, Zenodo DOI 10.5281/zenodo.18413995

Vault: No vault records yet for Fiat On-Ramp in the current cycle, κ and Φ_S here are topology-derived until observations are attested. The field recommends observation as the first action.

Note: Internal topology codenames are not used in public reports. All entity names in this report are public names.