Matthew Lukin Smawfield

Temporal Equivalence Principle

A scalar-tensor framework for global proper-time transport

The Temporal Equivalence Principle investigates whether proper time is globally integrable. Its central claim is not that local relativity fails, but that global proper-time transport may contain measurable structure not captured by standard reciprocity-even tests.

TEP promotes proper time from a passive parameter to a dynamical scalar field whose spatial structure is called Temporal Topology. Local Lorentz invariance and locally measured c are preserved, while global synchronization may acquire residual holonomy. Gradients in the temporal field produce Temporal Shear, a mechanism that can be tested using precision timing networks and extended astrophysical systems.

The primary empirical target is a reported distance-structured correlation pattern in global GNSS timing data. This signal has been studied in multi-center clock products, a 25-year CODE analysis, raw RINEX observations, and optical satellite laser ranging. Astrophysical applications then test whether the same temporal-field structure appears through density-dependent screening in lensing, pulsars, Cepheids, wide binaries, and high-redshift galaxies.

These manuscripts are working preprints released for open scrutiny. What is now needed is independent blinded replication of the primary timing correlations and experimental tests of synchronization holonomy.

Start here: Key Concepts · Theory Paper · GNSS I · Raw RINEX Test · Experimental Tests · Replication Code

Key Conceptual Framework

Temporal Topology
ϕ,   μν
The spatial structure of the dynamical proper-time field ϕ, which enters clock and matter measurements through the matter metric μν. Intuitively, it is a “landscape of time”: hills and valleys describe how the rate and transport of proper time vary across space. In screened regions this landscape is flattened; in unscreened or weakly screened regions it can develop measurable structure.
Temporal Shear
∇ϕ,   ∂μϕ
The observable gradient structure of Temporal Topology. Where the temporal landscape changes across an extended system, different parts of that system can accumulate proper time at slightly different rates. Depending on the observational regime, this can appear as differential clock drift, phase shifts, lensing-like distortions, period biases, or modified dynamical scaling. In TEP, screening is modeled through how these gradients superpose, suppress, and saturate across density regimes.
Synchronization Holonomy
Hresid = ∮∂Σ(σ̃ − σGR) = ∬Σ(F̃ − FGR)
A residual closed-loop observable measuring whether clock synchronization returns to itself after transport around a loop, after modeled GR contributions such as Sagnac, Shapiro, and gravito-magnetic terms are subtracted. If global proper-time transport is integrable, the loop closes. If Temporal Topology contains non-integrable structure, synchronization transported around the loop can return with a residual proper-time offset.

The landscape language is only an intuition. Formally, the relevant objects are the scalar field ϕ, the matter metric μν, its conformal/disformal relation to gμν, and the resulting gradients that govern proper-time transport.

Research Programme

A New Testable Sector of Relativity

Theoretical foundation and empirical tests across terrestrial metrology, astrophysics, and cosmology.

I. Foundations

Temporal Equivalence Principle

Temporal Equivalence Principle: Dynamic Time & Emergent Light Speed

This paper proposes a covariant, testable reformulation of relativity in which proper time is a dynamical field and the "speed of light" is an emergent, strictly local invariant rather than a globally transportable synchronization constant. The framework is built on a single spacetime manifold endowed with two metrics: a gravitational metric gμν and a causal (matter) metric μν to which all...

First published: 18 Aug 2025 | Updated: 24 Apr 2026
v0.7 (Jakarta) PDF
Precision Tests of General Relativity

What Do Precision Tests of General Relativity Actually Measure?

Most high-precision tests of general relativity constrain reciprocity-even, largely local observables within single-metric frameworks. This leaves open a specific underdetermination between General Relativity (GR) and a class of two-metric disformal scalar-tensor modifications, exemplified here by the Temporal Equivalence Principle (TEP).

First published: 31 Dec 2025 | Updated: 31 Dec 2025
v0.2 PDF

II. Primary timing evidence

Global Time Echoes I

Global Time Echoes: Distance-Structured Correlations in GNSS Clocks

Phase-coherent spectral analysis of 62.7 million station-pair measurements from 364 GNSS stations (2023–2025) reveals systematic distance-structured correlations in clock networks. These correlations follow an exponential decay with a median correlation length λ = 3,330–4,549 km and show strong goodness-of-fit when evaluated...

First published: 17 Sep 2025 | Updated: 24 Apr 2026
v0.24 (Jaipur) PDF
25-Year Analysis

Global Time Echoes: 25-Year Analysis

Analysis of 25.3 years of global GNSS timing data (165.2 million station pairs) documents persistent velocity-dependent correlations in atomic clock networks. The study examines whether standard GNSS processing algorithms preserve subtle, geometry-dependent differential correlations rather than removing them as common-mode errors.

First published: 3 Nov 2025 | Updated: 24 Apr 2026
v0.17 (Cairo) PDF
Raw RINEX Test

Global Time Echoes: Raw RINEX Test of Distance-Structured Correlations

This paper tests whether the reported distance-structured GNSS clock correlations persist in raw observations rather than only in processed clock products. The analysis uses 1.17 billion raw RINEX pair-samples processed via Single Point Positioning, substantially constraining—but not by itself eliminating—processing-artifact explanations.

First published: 9 Dec 2025 | Updated: 24 Apr 2026
v0.4 (Kathmandu) PDF
Global Time Echoes: Interactive GNSS Demo
INTERACTIVE DEMO

Global Time Echoes: Interactive GNSS Demo

Visualize the reported distance-dependent coherence pattern and compare it with the null expectation used in the analysis. Explore the correlation decay directly in the browser.

Try it now →

III. Synthesis and scaling

Global Time Echoes: Empirical Synthesis

Global Time Echoes: Empirical Synthesis

This synthesis compares timing, geodetic, and astrophysical signatures that appear consistent with the TEP hypothesis, including orbital coupling, CMB-frame alignment, optical SLR correlations, and host-potential distance-ladder trends. The combined statistical evidence is large under the stated independence assumptions, but the central requirement remains independent replication of the primary timing signal.

First published: 21 Dec 2025 | Updated: 24 Apr 2026
v0.3 (Singapore) PDF
Universal Critical Density

Universal Critical Density

Proposes and tests a universal critical density ρc ≈ 20 g/cm³ as an organizing scale across terrestrial, stellar, galactic, and cosmological regimes—spanning 40 orders of magnitude in mass.

First published: 28 Dec 2025 | Updated: 24 Apr 2026
v0.2 (New Delhi) PDF

IV. Astrophysical and cosmological tests

Gravitational Lensing

Gravitational Lensing

Examines how conformal metric couplings create a "temporal composite" image, producing apparent “Phantom Mass” contributions that can mimic some lensing signatures normally attributed to particulate dark matter.

First published: 19 Dec 2025 | Updated: 24 Apr 2026
v0.4 (Tortola) PDF
Suppressed Density Scaling in Globular Cluster Pulsars

Globular Cluster Pulsars

Reports a controlled spin-down excess in globular-cluster pulsars, with significance ranging from 5.8σ to 7.7σ depending on correlation treatment, and suppressed density scaling consistent with TEP screening saturation.

First published: 9 Jan 2026 | Updated: 24 Apr 2026
v0.5 (Caracas) PDF
The Cepheid Bias: A Candidate Resolution to the Hubble Tension

Cepheid Bias / Hubble Tension

Tests a proposed “Cepheid Bias”: an environment-dependent period contraction predicted by TEP. In the current SH0ES-host analysis, applying the correction shifts the inferred local H0 toward the Planck value, reducing the nominal tension to 0.6σ under the model assumptions.

First published: 11 Jan 2026 | Updated: 24 Apr 2026
v0.5 (Kingston upon Hull) PDF
Temporal Equivalence Principle: A Candidate Resolution to the JWST High-Redshift Anomalies

JWST High-Redshift Anomalies

Investigates whether star formation efficiency excesses and overmassive black holes at high redshift arise from isochrony axiom violation in deep potentials.

First published: 13 Mar 2026 | Updated: 24 Apr 2026
v0.3 (Kos) PDF
Temporal Equivalence Principle: Density-Dependent Screening in Gaia DR3 Wide Binaries

Gaia DR3 Wide Binaries

Finds evidence for a characteristic screening transition radius Rs=2,461±178 AU with environmental ordering, consistent with TEP’s density-dependent screening interpretation.

First published: 19 Mar 2026 | Updated: 24 Apr 2026
v0.2 (Kilifi) PDF
The Soliton Wake

RBH-1 Soliton Wake

Explores whether the velocity discontinuity in RBH-1 can be interpreted as a metric-shock or soliton-wake signature consistent with the terrestrial critical-density calibration.

First published: 28 Dec 2025 | Updated: 24 Apr 2026
v0.2 (Blantyre) PDF

About this research

This research programme investigates a specific assumption underlying most relativistic inference: that proper time, after standard relativistic corrections, can be transported globally without path dependence. TEP names this assumption the Isochrony Axiom and proposes a testable alternative in which proper time is a dynamical scalar field with spatial structure.

The framework is formulated as a covariant scalar-tensor theory with a gravitational metric and a matter/clock metric. Local physics remains Lorentz invariant. The new effects appear in global observables: distributed clock correlations, synchronization holonomy, temporal shear, and density-dependent screening transitions.

The empirical programme begins with GNSS because global navigation systems form a planetary-scale network of atomic clocks. The reported signal is a distance-structured correlation pattern with characteristic length λ≈4,200 km, seen in processed clock products, a 25-year longitudinal analysis, and raw RINEX-derived observables. Satellite laser ranging provides an optical-domain consistency check.

The astrophysical papers then ask whether the same temporal-field structure can organize phenomena normally treated separately: lensing mass discrepancies, globular-cluster pulsar timing, Cepheid distance-ladder biases, JWST high-redshift anomalies, and Gaia wide-binary dynamics. These applications are not presented as independent proof of TEP, but as cross-regime tests of a common screening and temporal-shear mechanism.

All papers, code, and data products are released for open review. Independent replication is essential. The clearest near-term falsification tests are external reproduction of the GNSS/RINEX correlations, multi-constellation timing checks, optical-clock or fiber-link tests, and closed-loop one-way synchronization holonomy.

Video Overview

A concise introduction to the Temporal Equivalence Principle framework, covering the core postulate, its implications for dark matter and the Hubble Tension, and the terrestrial GNSS evidence.

Interactive Correlation Decay Explorer

This interactive visualization displays the reported exponential decay pattern across processed clock products and raw RINEX-derived observables. The dual y-axes show phase alignment for processed clock products (blue, left) and magnitude squared coherence for raw RINEX data (orange, right), suggesting that both metrics follow a similar exponential decay law despite measuring on different scales.

The dotted trend lines represent averaged exponential fits with correlation lengths (λ) ranging from 600–4,500 km and fit quality (R²) of 0.87–0.99. This cross-validation across processed clock products (CODE, IGS, ESA) and raw RINEX analyses (3 station filters × 4 processing modes × 3 metrics) indicates that the correlation decay is a reproducible feature independent of measurement methodology, supporting the case that the pattern is not confined to a single processing methodology.

Open Science & Reproducibility

All analysis code, processing pipelines, and computational results are publicly available under open-source licenses. The complete analysis workflows for the primary timing studies—including processed GNSS clocks, 25-year CODE products, raw RINEX, and optical SLR—are hosted on GitHub to enable independent verification and replication. The analysis encompasses over 1 billion individual measurements across complementary methodologies, with complete computational reproducibility from documented input data to final figures.

Independent replication by other research groups is essential for validation. Researchers interested in replication may find Paper 1 (TEP-GNSS I) the most accessible entry point, using publicly available CODE/IGS/ESA clock products (compact .clk files). Paper 2 (TEP-GNSS II) extends this with 25 years of CODE clock data. Paper 3 (TEP-GNSS III) provides the most direct raw-data test via RINEX processing but requires more substantial computational resources. All data, code, and methodologies are openly available. Feedback on methodology, interpretation, or potential collaboration is welcomed.

TEP

Core repository containing the theoretical framework, mathematical models, and LaTeX source. Includes derivation scripts, figure generation code, and the full manuscript source.

TEP-GNSS

Complete analysis pipeline for Paper 1 (TEP-GNSS I). Features multi-center cross-validation scripts, processing logs, JSON statistical outputs, and generated figures for correlation decay quantification.

TEP-GNSS-II

Research compendium for Paper 2 (TEP-GNSS II). Contains longitudinal analysis scripts, orbital coupling logs, CMB alignment data, and comprehensive JSON result files.

TEP-GNSS-RINEX

End-to-end pipeline for Paper 3 (TEP-GNSS III). Includes SPP processing scripts, raw RINEX analysis logs, validation datasets, and resulting anisotropy figures from 1 billion samples.

TEP-GL

Codebase for Paper 4 (TEP-GL). Contains phantom mass modeling scripts, rotation curve data, analysis logs, and the Python notebooks used to generate manuscript figures.

TEP-GTE

Synthesis framework for Paper 5 (TEP-GTE). Includes integration scripts, cross-study correlation logs, consolidated JSON datasets, and summary figures demonstrating signal convergence.

TEP-UCD

Scaling analysis codebase for Paper 6 (TEP-UCD). Features critical density calculation scripts, scaling law verification logs, and the data pipelines used to test scaling relations associated with the proposed critical-density screening model.

TEP-RBH

Simulation suite for Paper 7 (TEP-RBH). Contains soliton wake modeling scripts, hydrodynamic simulation logs, parameter space JSONs, and the visualization tools for the RBH-1 analysis.

TEP-SLR

Complete analysis pipeline for Paper 8 (TEP-SLR). Includes SLR data parsers, residual computation logs, correlation analysis scripts, and final result figures.

TEP-EXP

Codebase for Paper 9 (TEP-EXP). Methodological taxonomy of precision tests of general relativity, discriminating experiments, and analysis of which observables constrain disformal scalar-tensor modifications.

TEP-COS

Codebase for the COSMOGRAIL and Globular Cluster analysis (TEP-COS). Contains pulsar timing datasets, density scaling analysis scripts, and lensing shear calculators.

TEP-H0

Codebase for Paper 11 (TEP-H0). Includes SH0ES data processing, environment stratification, TEP correction optimization, and scripts testing whether an environment-dependent Cepheid correction can reduce the Hubble tension.

TEP-JWST

Codebase for Paper 12 (TEP-JWST). JWST high-redshift galaxy analysis, isochrony axiom tests, temporal shear calculations, SUSPENSE survey kinematic comparisons, and star formation efficiency modelling.

TEP-WB

Codebase for Paper 13 (TEP-WB). Gaia DR3 wide-binary analysis, density-dependent screening tests, disk/halo environmental ordering, and Temporal Topology field transition radius fitting.

Interactive CMB Frame Alignment Visualization

This interactive visualization shows the correlation strength between GNSS clock measurements across the celestial sphere, derived from 25.3 years of CODE clock products (March 2000 to June 2025, 165 million station-pair measurements). The heatmap displays how the anisotropy pattern (East-West vs North-South correlation strength ratio) varies throughout Earth's annual orbit.

The anisotropy ratio modulates annually with Earth’s orbital velocity. The reported best-fit direction (RA 186°, Dec −4°, white marker) lies 18° from the CMB dipole (RA 168°, Dec -7°, cyan marker) and 89° from the Solar Apex (RA 272°, Dec +30°, orange marker), with a reported 5,570× variance ratio favoring the CMB-frame model under the stated analysis assumptions. This makes CMB-frame coupling a specific replication target rather than a standalone conclusion.

Frequently Asked Questions

What is the Temporal Equivalence Principle (TEP)?

TEP is a scalar-tensor extension of general relativity that promotes proper time to a dynamical field while preserving local Lorentz invariance. In its empirical applications, the framework emphasizes a small set of inherited parameters, especially the GNSS-derived correlation length and the critical density associated with screening.

How does TEP differ from general relativity?

TEP is a generalization of GR, not a replacement. GR is recovered in the high-density (screened) limit. TEP is constructed to recover GR to current precision in standard local, screened tests of relativity (Gravity Probe B, Cassini, binary pulsars). Differences emerge only in low-density, extended-source regimes where a scalar field introduces path-dependent synchronization holonomy.

What evidence supports TEP?

The primary evidence is a reported distance-structured correlation pattern in global GNSS timing data, observed across multi-center clock products, a 25-year CODE analysis, and raw RINEX processing. Secondary evidence includes optical-domain SLR correlations, pulsar timing trends, wide-binary screening signatures, Cepheid host-environment trends, and lensing/cosmological consistency tests. These results are presented as an open replication programme; the most important next step is independent blinded reproduction of the primary timing correlations by external groups.

How does TEP reinterpret dark matter observations?

TEP proposes that gradients in Temporal Topology can project into lensing and dynamical observables as an apparent mass component, termed Phantom Mass. In the conservative interpretation, this is a testable correction to standard lensing and timing inference. In the stronger interpretation, it could account for part of the phenomenology usually attributed to dark matter. The decisive tests are variability-dependent lensing, lensed FRB timing, and environment-dependent screening signatures.

How does TEP address the Hubble tension?

TEP predicts that Cepheid periods may acquire an environment-dependent bias in deep gravitational potentials. In the current SH0ES-host analysis, correcting for this proposed bias shifts the inferred local value toward the Planck value. This should be read as a candidate distance-ladder systematic, not as a final resolution until tested blindly on independent Cepheid, TRGB, maser, and SN host samples.

Is TEP compatible with gravitational wave observations?

Yes, in the intended parameter regime. GW170817 tightly constrains disformal light-cone differences between photons and gravitational waves. TEP’s main clock-rate effects arise in the conformal sector, where co-propagating electromagnetic and gravitational signals can share common-mode propagation effects. The disformal sector must remain small enough to satisfy multi-messenger bounds.

What are the falsification criteria for TEP?

The framework specifies six primary pathways for empirical falsification:

  1. Independent GNSS replication: Reproducing the reported timing correlations using independent processing of public IGS/CODE clock products.
  2. Raw-data robustness: Testing whether the timing signal persists when derived directly from raw RINEX observations using multiple GNSS processing engines (e.g., GIPSY, Bernese).
  3. Technology independence: Verifying if similar spatial-temporal structure is detectable via Satellite Laser Ranging (SLR), fiber-optic time transfer, or optical-clock networks.
  4. Closed-loop holonomy: Performing dedicated multi-leg timing experiments to search for residual synchronization holonomy after standard GR effects are removed.
  5. Screening morphology: Testing whether the predicted density-dependent environmental ordering persists in wide-binary, globular cluster, and galaxy-scale data.
  6. Astrophysical inheritance: Determining if the framework fails when timing-calibrated parameters are applied to lensing and cosmological observables without additional free parameters.

How does TEP relate to MOND?

Both TEP and MOND address phenomenology attributed to dark matter, but through distinct mechanisms. MOND proposes a universal acceleration threshold (a₀ ≈ 1.2×10⁻¹⁰ m/s²) below which gravitational behavior deviates from Newtonian predictions. TEP posits density-dependent screening via Temporal Topology governed by a universal critical density (ρc ≈ 20 g/cm³), which produces environmental ordering that is not a generic MOND prediction and differs from the simplest scale-free MOND expectation. The two frameworks make qualitatively different predictions for environmental stratification.

Where can I find the TEP papers, data, and analysis code?

The full manuscript series is freely available at mlsmawfield.com with Zenodo DOIs. Analysis code and data pipelines are hosted on GitHub. All manuscripts, code, and data products are released under Creative Commons CC-BY-4.0 and MIT licenses.

Note on Disambiguation: The acronym TEP (Temporal Equivalence Principle) addresses the foundations of spacetime geometry. It is distinct from the thermoelectric power coefficient (Seebeck TEP) in condensed matter or the Total Extraperitoneal surgical procedure.