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Hardware confirmation.

The Merkabit framework makes pre-registered, named predictions about behaviour on real superconducting quantum hardware. Pre-registration commits are public; raw shot counts are published. The score on IBM Eagle r3 stands at 5 of 5.

5/5
Pre-registered predictions confirmed

IBM Eagle r3 · 127 qubits · superconducting

Five distinct, falsifiable predictions about the dual-spinor Merkabit register. Each pre-registered before execution; each confirmed against measured shot counts. Papers 24–26 contain the full data and analysis.

The five predictions

What was predicted, what was measured.

All confirmed
01

The P-gate is native

The dual-spinor phase gate emerges directly from the hardware's native operations, not as a compiled approximation.
Predicted P-gate available without decomposition Measured Native execution confirmed
✓ Confirmed
02

Z₂ symmetry of the register

The register exhibits exact Z₂ symmetry across the dual-spinor axis under all noise channels.
Predicted Z₂ symmetric to ≤ 0.5% Measured 0.32% deviation (well within bound)
✓ Confirmed
03

Two-scale anti-bunching

Distinct anti-bunching signatures at the binary and ternary scales, separable by frequency.
Predicted Two-scale separation visible Measured Both scales present, ratio 1 : 1.33
✓ Confirmed
04

Berry phase quasi-period

The Berry phase quasi-period closes at the predicted Coxeter number h(E₆) = 12.
Predicted Period 12 ± 1 Measured 11.94 (σ = 0.21)
✓ Confirmed
05

The Fano gap

A discrete spectral gap appears at the position dictated by Fano-plane incidence geometry.
Predicted Δ = 1/24 of native band Measured 0.0418 ± 0.003 (1/24 ≈ 0.0417)
✓ Confirmed
Cross-architecture

The same predictions, different hardware.

IBM Eagle r3
5 / 5
127 qubits · heavy-hex · superconducting

Primary confirmation platform. All five predictions verified against pre-registered thresholds.

Complete
IBM Heron
In progress
156 qubits · heavy-hex · superconducting

Replication run. Shot acquisition complete; analysis underway. Paper 26 corrects earlier interpretation.

Analysing
Google Willow
Pre-registered
105 qubits · square-grid · superconducting

Phase 2 protocols submitted. Square-grid topology — distinct prediction set from heavy-hex. Pending execution.

Pending
IBM Eagle r3 cryostat — placeholder
Pre-registration commit log — placeholder