Hubble tension

Structural Challenge

This response is paired with its canonical Structural Challenge: Hubble tension (P038) in the Physics Structural Challenge Ledger.

τ response

Evidence route

This response is supported by 6 canonical registry items in the τ Corpus.

• V.D149 — Depth-Projected Hubble Parameter direct problem account confidence: high
• V.D251 — Structural Hubble Parameter h = 2/3 + ι_τ²/W₃(3) direct problem account confidence: high
• V.T101 — H0 Tension Framework Account direct problem account confidence: high
• V.T18 — Hubble Tension Framework Account direct problem account confidence: high
• V.T196 — Hubble Parameter from τ: h at −120 ppm direct problem account confidence: high
• V.T259 — Uniqueness of Hubble Formula direct problem account confidence: medium

Notes

Verification

• Verification routeempirical_accountability
• Verification statuspending_external_review
• External statusexternally_open

External-review boundary

External cosmology review of the τ formulation versus ΛCDM and dark-sector alternatives; comparison against named experiments (Planck, DESI, Euclid, JWST) where falsification paths exist.

Provenance

• v1 predecessorphys-hubble-tension (promoted one to one)
• v1 mapping recovered fromf534b3fb^

Status disclaimer

A Challenge Response reports the program's current internal stance against a canonical Structural Challenge. It does not imply external verification, scientific consensus, philosophical settlement, or final proof. Read it together with its evidence route, registry references, verification status, and external-review boundary.