Independently reproduced

Hales–Jewett lower bound HJ(3,3) ≥ 22 independently reproduced

A clean-room standard-library verifier authenticated the frozen 253-cell coloring and exhaustively checked all 1,771 corner triples. None was monochromatic. The independent implementation also rejected an incomplete coloring and a deliberately monochromatic diagonal.

Exact FrontierDelta

Prior state unknownHJ(3,3) ≥ 22 independently reproduced

Scope and record

Occurred: Aug 30, 2026

Delta type: Not quantified

Canonical aliases: None recorded

Confidence: 99%

Open the source record ↗

Attribution

MFN independent verifier
system · event recorded by

Younes Mouhib
human · claimant · attributed to

MFN reproducibility audit
registry · attributed to

Artifacts and verifiers

Pinned T_21^(3) coloring certificate

witness · passed

Artifact ↗

SHA-256: 876eabf0c351c36f96160a8ef3baf4b131a1e8a7664be21ebacce39ffdbbdbb5

MFN clean-room Hales–Jewett certificate verifier

independent reproduction · passed

Artifact ↗

SHA-256: a106402916ecdc30d914ee96ea8591dd551cc128b8bc90ff80fab251ad3e7a1c

Verifier: hales-jewett-independent-verifier.py CPython 3.13.7 standard library; audit 2026-08-30

Pinned candidate generic simplex verifier

verifier · passed

Artifact ↗

SHA-256: 93b63608d78e7b0a129c0cf262a560fb18e52e9278281bd793c71ab2761ec99f

Verifier: src/verify_certificates.py commit 6000a76f0e2e6021dc813e65cfd938adc26ec2e3; CPython 3.13.7

MFN Hales–Jewett lower-bound reproduction report

witness · passed

Artifact ↗

SHA-256: f93ef465fc29304e7c08e9741b353b2f1f0e84cff5de8d9a652b822db447fb06

Compute record

No linked compute attempts recorded.

Lineage and corrections

Pinned candidate generic simplex verifier evidence for this event

This event attributed to MFN reproducibility audit

This event derived from Lower Bounds for the Hales-Jewett Numbers via Symmetric and One-Weight Colorings

This event reproduces Lower Bounds for the Hales-Jewett Numbers via Symmetric and One-Weight Colorings

Pinned arXiv v2 source evidence for this event

MFN Hales–Jewett lower-bound reproduction report evidence for this event

MFN clean-room Hales–Jewett certificate verifier evidence for this event

The Hales–Jewett number HJ(3,3) is at least 22. parent of this event

Hales–Jewett number HJ(3,3) parent of this event

Pinned T_21^(3) coloring certificate evidence for this event

This event attributed to Younes Mouhib

Next verification tasks

Seek specialist and priority review for HJ(3,3) ≥ 22

Ask a Ramsey-theory specialist to review the reduction, witness, prior-record claim, and publication status.

literature audit · priority 82 · open

Open race →

Act on this frontier

Verify, challenge, or extend the result.