{"compile":"2026-10-10","canonical":"https://aaronspradlin.grok.me/wiki/validation-week-2025","json":"https://aaronspradlin.grok.me/page.json?slug=validation-week-2025","license":"Source-available for noncommercial research and evaluation only. No commercial, product, platform, or service use without written permission.","scientific_breakthrough":false,"slug":"validation-week-2025","title":"Validation week (Jan–Feb 2025)","dek":"29 Jan–13 Feb 2025: first-validation, ICL growth, mass-scaling chart, Bullet + four-cluster table, ξ(r) vs KiDS. Status URLs. Not claimed.","updated":"2026-09-06","status":"open","claim":"not-claimed","tags":["2025","ICL","Bullet","validation"],"related":["origin-law","toi-toe-2025","hubble-tension","great-grok-challenge","proofs-and-simulations","x-notebook"],"packages":[],"notes":[{"id":"first-validation-2025-01-29","title":"First UQCF-GEM astrophysical validation thread","date":"2025-01-29","xUrl":"https://x.com/aaronspradlin/status/1884695170018582620"},{"id":"bullet-nodm-2025-02-10","title":"Bullet Cluster no-DM offset — 201.55 kpc, not claimed","date":"2025-02-10","xUrl":"https://x.com/aaronspradlin/status/1888968168833777852"},{"id":"xi-kids-2025-02-13","title":"ξ(r) vs KiDS/DES — χ² 7.42 vs ΛCDM 11.85, not claimed","date":"2025-02-13","xUrl":"https://x.com/aaronspradlin/status/1890119104075628700"}],"claims":[{"status":"not-claimed","text":"The 30 Jan 2025 ICL-growth equation and the 29 Jan mass-scaling chart are archived so the first-validation week is readable. They are not 2026 supported cluster-mass or ICL results.","noteId":"first-validation-2025-01-29"},{"status":"not-claimed","text":"The 10 Feb 2025 Bullet Cluster 201.55 kpc closeout and the 13 Feb ξ(r) χ² 7.42 vs ΛCDM 11.85 are not 2026 supported cluster or clustering results.","noteId":"bullet-nodm-2025-02-10"}],"text":"The 2025 on-ramp is a different spine from the 2026 Great Grok Challenge. This page holds the January–February validation week so those posts are not only a footnote on Origin Law. Numbers as posted. Kits not pasted. Challenge 15 (2026) is a later frozen-scaffold Bullet test, not this week.\n\n29–30 Jan — first validation\n\n29 Jan 2025 opened an astrophysical validation thread: weak-lensing κ and velocity-dispersion mass estimates without dataset-specific tuning. Same thread: a DES/HSC/CFHTLenS/KiDS/RCSLenS + SDSS DR17 + Chandra/XMM mass-scaling chart. The chart used an unfilled Python placeholder for fit coefficients; this atlas does not invent them. 30 Jan posted the ICL-growth equation.\n\nM_{\\mathrm{ICL}}(z)=0.12\\,(1+z)^{-1.48}\\,e^{-0.65z}\n\nThe 30 Jan 2025 ICL-growth equation and the 29 Jan mass-scaling chart are archived so the first-validation week is readable. They are not 2026 supported cluster-mass or ICL results.\n\n10–13 Feb — Bullet and ξ(r)\n\n10 Feb 2025 posted a no-dark-matter Bullet Cluster closeout at 201.55 kpc (χ² 3.15 vs ΛCDM 4.22) and a four-cluster offset table. 13 Feb quoted ξ(r) vs KiDS/DES at χ² 7.42 vs ΛCDM 11.85. 2025 Grok-loop / kit-era numbers.\n\nThe 10 Feb 2025 Bullet Cluster 201.55 kpc closeout and the 13 Feb ξ(r) χ² 7.42 vs ΛCDM 11.85 are not 2026 supported cluster or clustering results.\n\nFirst validation thread (29 Jan)\nMass-scaling chart (29 Jan)\nICL growth equation (30 Jan)\nBullet Cluster no-DM offset (10 Feb)\nFour-cluster offset table (10 Feb)\nξ(r) vs KiDS/DES (13 Feb)\nOrigin Law year list\nGreat Grok Challenge (2026 spine)","howToCite":"Spradlin, A. (2026-10-10). Validation week (Jan–Feb 2025). Retained Atlas. https://aaronspradlin.grok.me/wiki/validation-week-2025. Keep claim badge: not-claimed."}