EXP-069VALIDATED
Canonical GPU engineering / SHA-256d

Independent replication of T512-N4

The small T512-N4 throughput signal from EXP-144 replicates on unseen headers with frozen binaries.

Claim statusNO END-TO-END MINING ADVANTAGE DEMONSTRATED

Diagnostic work, exact algebra and local capabilities are not treated as end-to-end mining advantage.

Date2026-08-14
HardwareNVIDIA GeForce RTX 5080 · exact SHA-256d verifier
Run scopePreregistered campaign with sealed result and audit
ReproducibilityUse the sealed binaries, eight unseen headers and identical ABBA/BAAB ordering.
01 / Question & hypothesis

What was tested?

The small T512-N4 throughput signal from EXP-144 replicates on unseen headers with frozen binaries.

02 / Scientific basis

Why the test is meaningful

A sub-1% effect requires independent headers, balanced order, a frozen single candidate and an interval entirely above one.

R=geomean throughput_N4/throughput_N32gate R≥1.002direction≥7/8 and CI_low>1
Independent replication of T512-N4Visual reading of the published metrics and gates for EXP-069; it summarizes the registered result, not a mining advantage.EXP-069 / INDEPENDENT REPLICATION OF T512-N4GEOMETRIC SPEEDUP1.003057×95% INTERVAL1.002573–1.003540HEADERS WON8 / 8
FIGURE / RESULT READINGVisual reading of the published metrics and gates for EXP-069; it summarizes the registered result, not a mining advantage.
03 / Method

How it was tested

Freeze N4/N32 before generating eight new headers and run 64 ABBA/BAAB measurements of 134,217,728 × 96 hashes.

04 / Observed result

What happened

Geometric speedup1.003057×
95% interval1.002573–1.003540
Headers won8 / 8

N4 won 8/8 headers with individual ratios 1.002507–1.004223. Geometric kernel and wall ratio was 1.003057; 95% interval 1.002573–1.003540. Every exactness gate passed.

05 / Validation

Exactness and statistical controls

No candidate reselection or gate adaptation occurred. Energy/thermal confirmation remained a mandatory next gate.

06 / Interpretation

What the result means

The small throughput improvement is independently reproducible on this RTX 5080, but is not generalized to other hardware or probability per hash.

Limitations

  • Hardware-local result.
  • Energy was not measured in this campaign.
  • A faster GPU kernel is not an ASIC advantage.
07 / Reproduction

Evidence trail

Use the sealed binaries, eight unseen headers and identical ABBA/BAAB ordering.

Canonical variants

CANONICAL-EXP-145PREREGISTERED-CAMPAIGNSEALED-AUDIT

Source: internally audited canonical reports. Local filesystem structure, private headers and operational identifiers are excluded from publication.