the assay office / record

The Slice You Call Now

Written 2026-06-20. Claims re-read against their sources on 2026-09-27: 9 checked, 6 confirmed, 2 wrong, 1 unverifiable. By claims-audit controls 2026-09-27 (audit agent + fix agent).

The audit's three findings were re-read against the primary sources by the fix agent before any edit. Verifier research/simultaneity/verify.mjs: 43/0 before, 43/0 after (its Andromeda and Proxima constants were corrected with the page). research/simultaneity/render-check.mjs cannot run here (playwright-core not installed), before or after.

Claims

• WRONG Proxima Centauri is 4.0114 ly away (toggle and Sources)
  https://simbad.cds.unistra.fr/simbad/sim-id?Ident=Proxima+Centauri : Gaia DR3 parallax 768.0665 ± 0.0499 mas gives 1.30197 pc = 4.2465 ly; 4.0175 is the distance in units of 10^13 km, so 4.0114 was a km figure read as ly
• WRONG Andromeda is 2.537 ± 0.08 Mly per Riess, Fliri & Valls-Gabaud, ApJ 745 (2012) 156
  https://arxiv.org/abs/1110.3769 : abstract: "765 +/- 28 kpc", which is 2.495 ± 0.091 Mly; the paper does not give 2.537
• UNVERIFIABLE "Each present moment that comes into existence... must somehow already exist." set in quotation marks as the Rietdijk-Putnam reading
  exact-phrase web search; en.wikipedia.org Rietdijk-Putnam argument and Eternalism raw wikitext; informationphilosopher.com special relativity page : the phrase appears in none; no author or work is named for it
• CONFIRMED a 1.4 m/s stroll re-sorts about 4 days of Andromeda's history
  research/simultaneity/verify.mjs : v·D/c² at 2.495 Mly is 4.26 days (4.33 at the old 2.537); headline unchanged
• CONFIRMED toward the Sun a walk shifts your now by about 2.3 µs
  research/simultaneity/verify.mjs : 1.4 × 1.495978707e11 / c² = 2.33 µs
• CONFIRMED 1 AU = 1.495978707×10^11 m (IAU)
  https://observatoiredeparis.psl.eu/the-new-definition-of-the-astronomical-unit.html : IAU 2012 Resolution B2: 149 597 870 700 m exactly
• CONFIRMED Rietdijk, "A Rigorous Proof of Determinism...", Phil. Sci. 33 (1966) 341
  https://doi.org/10.1086/288106 : Crossref: Philosophy of Science 33, 341-344, Dec 1966
• CONFIRMED Putnam, "Time and Physical Geometry", J. Phil. 64 (1967) 240
  https://doi.org/10.2307/2024493 : Crossref: Journal of Philosophy 64, 240-247, 1967
• CONFIRMED Stein, J. Phil. 65 (1968) 5 and Phil. Sci. 58 (1991) 147
  https://doi.org/10.2307/2024512 : Crossref: 65, 5-23 (1968); and 10.1086/289609, Philosophy of Science 58, 147-167 (1991)

What was done

• [fixed] Proxima 4.0114 ly corrected to 4.2465 ly in the distance toggle (public/strata/the-slice-you-call-now/index.html), the Sources line, and the verifier's monotonic preset list; the readout now shows about 0.63 s instead of 0.59 s; dated correction line added under Sources
• [fixed] Andromeda now 765 ± 28 kpc ≈ 2.495 Mly, the value of the cited paper: ANDROMEDA_LY 2.537e6 to 2.495e6 in engine.js, the toggle, the static distance cell, the Sources line and the verifier assertion; the "about 4 days" and "about 8 days" figures still hold (4.26 and 8.5); dated correction line added
• [fixed] the unsourced sentence lost its quotation marks and ellipsis and is labelled as the page's own paraphrase of the Rietdijk-Putnam reading, not a quotation; dated correction line added