Pith Number

pith:RLA7PAJ2

pith:2025:RLA7PAJ2GMWDATUJ7BBNHP5L2T

not attested not anchored not stored refs pending

An Agnostic Approach to Building Empirical Type Ia Supernova Light Curves: Evidence for Intrinsic Chromatic Flux Variation Using Nearby Supernova Factory Data

A. G. Kim, B. Hayden, C. Aragon, C. Baltay, C. Buton, C. Saunders, C. Tao, D. Fouchez, D. K\"usters, D. Rabinowitz, D. Rubin, E. Gangler, E. Pecontal, F. Mondon, G. Aldering, Jared Hand, J. Nordin, K. A. Ponder, K. Boone, K. Runge, Mitchell Karmen, M. Kowalski, M. Rigault, M. Vincenzi (The Nearby Supernova Factory), N. Suzuki, P. Antilogus, P.-F. L\'eget, R. C. Thomas, R. Gupta, R. Pain, R. Pereira, S. Bailey, S. Bongard, S. Dixon, S. Perlmutter, S. Taubenberger, W. Hillebrandt, Y. Copin

arxiv:2505.07880 v1 · 2025-05-10 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RLA7PAJ2GMWDATUJ7BBNHP5L2T}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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.

Receipt and verification

First computed	2026-07-05T11:01:58.905681Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ac1f7813a332c304e89f842d3bfabd4d78581754a582a0f6f6a06b2e4ca21ed

Aliases

arxiv: 2505.07880 · arxiv_version: 2505.07880v1 · doi: 10.48550/arxiv.2505.07880 · pith_short_12: RLA7PAJ2GMWD · pith_short_16: RLA7PAJ2GMWDATUJ · pith_short_8: RLA7PAJ2

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/RLA7PAJ2GMWDATUJ7BBNHP5L2T \
  | 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: 8ac1f7813a332c304e89f842d3bfabd4d78581754a582a0f6f6a06b2e4ca21ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b04b0ec0936bfe1851956c9e874f3071e01e143bd07015e85f1ed043a8717652",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-05-10T14:42:33Z",
    "title_canon_sha256": "d1abbcf8f343202cbd4adcd641b4d4d9489260b4029e40d7e000569d14ed0f01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.07880",
    "kind": "arxiv",
    "version": 1
  }
}