Pith Number

pith:OQSZEZHU

pith:2026:OQSZEZHU4J73T7TF5O2O75FEEW

not attested not anchored not stored refs pending

TDCOSMO XXVI: Uniform lens modeling of eight doubly imaged quasars

Anowar J. Shajib, Cameron Lemon, Dominique Sluse, Frederic Courbin, Martin Millon, Nafis Sadik Nihal, Ryan Brady, Simon Birrer, Veronica Motta, Xiang-Yu Huang

Surface brightness of lensed host arcs sets the precision of mass models in doubly imaged quasars.

arxiv:2604.24908 v2 · 2026-04-27 · astro-ph.CO · astro-ph.GA

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\usepackage{pith}
\pithnumber{OQSZEZHU4J73T7TF5O2O75FEEW}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

We find a strong correlation between Fermat potential precision and the surface brightness of the spatially extended host arcs, establishing that arc surface brightness is the primary driver of mass model precision in doubly imaged systems.

C2weakest assumption

The tailored Lenstronomy pipeline for doubles accurately captures the lensing geometry and mass profiles without significant biases from data heterogeneity or unaccounted systematics.

C3one line summary

Uniform modeling of eight double quasar lenses shows that host arc surface brightness determines Fermat potential precision.

Cited by

1 paper in Pith

Disentangling the dark and stellar mass through precise lens modelling of the JWST observation of lensed quasar WFI2033--4723

Receipt and verification

First computed	2026-08-07T00:51:35.090928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74259264f4e27fb9fe65ebb4eff4a4258c98056618344a783a5966016a8a3ad8

Aliases

arxiv: 2604.24908 · arxiv_version: 2604.24908v2 · doi: 10.48550/arxiv.2604.24908 · pith_short_12: OQSZEZHU4J73 · pith_short_16: OQSZEZHU4J73T7TF · pith_short_8: OQSZEZHU

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/OQSZEZHU4J73T7TF5O2O75FEEW \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 74259264f4e27fb9fe65ebb4eff4a4258c98056618344a783a5966016a8a3ad8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca59ceb7cd7a28517241fce8b96761124b628d9a5a762ab98ecba73d0e17adfc",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-04-27T18:40:35Z",
    "title_canon_sha256": "8bb5347acd82411e29051a5644762ccac88c932d4199838f3c262dcbba49b4f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.24908",
    "kind": "arxiv",
    "version": 2
  }
}