Pith Number

pith:GS65T5SY

pith:2026:GS65T5SYC3MERKPVDKR66JSS2U

not attested not anchored not stored refs resolved

Not All Who Wander Are Lost: Early Excess Demographics in the Volume-limited ZTF DR2 SN Ia Sample

Anyu Wang, C\'esar Rojas-Bravo, Chun Chen, Jifeng Liu, Mathew Smith, Ning-Chen Sun, Xiaohan Chen, Yi-Han Zhao, Zexi Niu, Zi-Yang Wang

Early-excess Type Ia supernovae show significantly larger SALT2 stretch and r-band secondary maximum flux than no-excess events.

arxiv:2605.14437 v1 · 2026-05-14 · astro-ph.HE · astro-ph.CO · astro-ph.GA · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GS65T5SYC3MERKPVDKR66JSS2U}

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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

✓ Portable graph bundle live · download bundle · merged state

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

Early-excess events have larger SALT2 stretch x1 (7.91σ) and larger r-band secondary-maximum flux Fr2 (6.25σ), while differences in SALT2 color c are weak (0.57σ).

C2weakest assumption

The conservative coverage and quality requirements applied to ZTF light curves produce unbiased excess and no-excess catalogs that accurately reflect intrinsic population differences.

C3one line summary

Early-excess Type Ia supernovae in the ZTF volume-limited sample have larger SALT2 stretch (7.91 sigma) and r-band secondary maximum flux (6.25 sigma) than no-excess events, with weaker host differences.

References

88 extracted · 88 resolved · 0 Pith anchors

[1] 2025, A&A, 694, A3 6 2025

[2] 2014, A&A, 568, A22 3 2014

[3] Blondin, S., & Tonry, J. L. 2007, ApJ, 666, 1024 4 2007

[4] 2021, ApJ, 909, 26 2 2021

[5] 2022, ApJ, 938, 110 2 2022

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-17T23:39:07.065606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34bdd9f65816d848a9f51aa3ef2652d53abade063229258d65f0b633df63ec57

Aliases

arxiv: 2605.14437 · arxiv_version: 2605.14437v1 · doi: 10.48550/arxiv.2605.14437 · pith_short_12: GS65T5SYC3ME · pith_short_16: GS65T5SYC3MERKPV · pith_short_8: GS65T5SY

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/GS65T5SYC3MERKPVDKR66JSS2U \
  | 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: 34bdd9f65816d848a9f51aa3ef2652d53abade063229258d65f0b633df63ec57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a5297663fc1fc05ce9f2e3601e1d5ff6a0448fa5fcc16690e40a2c2dd1ce5d0",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-05-14T06:32:51Z",
    "title_canon_sha256": "2d89835a301a16fd79b903d1cb9af209bdbe47243bdb97246509ddc59f6a2572"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.14437",
    "kind": "arxiv",
    "version": 1
  }
}