Pith Number

pith:27LDM3GX

pith:2026:27LDM3GXP7GLCUSBZ3XLBWQMF7

not attested not anchored not stored refs pending

A 14-year-old Mystery: The Peculiar Case of the Engine-driven SN 2012ap

A. J. Nayana, Carles Badenes, Collin T. Christy, Conor M. B. Omand, Dan Milisavljevic, Deanne L. Coppejans, Dina Ibrahimzade, Eli Wiston, Erica Hammerstein, Fabio De Colle, Giacomo Terreran, Gitika Rameshan, Huei Sears, Itai Sfaradi, Joe Bright, Jonathan Granot, Kate D. Alexander, Kohta Murase, Maria R. Drout, Michael Bietenholz, Michael Stroh, Michal J. Michalowski, Natalie LeBaron, Paz Beniamini, Raffaella Margutti, Rodolfo Barniol Duran, Ryan Chornock, Tracy E. Clarke, Wenbin Lu, Wendy M. Peters, Wynn V. Jacobson-Galan, Yihan Wang

arxiv:2605.16495 v1 · 2026-05-15 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{27LDM3GXP7GLCUSBZ3XLBWQMF7}

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	2026-05-20T00:02:25.594231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7d6366cd77fccb15241ceeeb0da0c2fc1e3242df2a1d4d16f09d13be2fed457

Aliases

arxiv: 2605.16495 · arxiv_version: 2605.16495v1 · doi: 10.48550/arxiv.2605.16495 · pith_short_12: 27LDM3GXP7GL · pith_short_16: 27LDM3GXP7GLCUSB · pith_short_8: 27LDM3GX

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/27LDM3GXP7GLCUSBZ3XLBWQMF7 \
  | 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: d7d6366cd77fccb15241ceeeb0da0c2fc1e3242df2a1d4d16f09d13be2fed457

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcaa398a350316e148f3823651351a8e0d6ba58d1860081e13b129ea3a3ebc2a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-05-15T18:00:04Z",
    "title_canon_sha256": "9b98c2233750f9186b1e98e4d4f2c946319cd5b3cda883627c6223d36c54b6af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.16495",
    "kind": "arxiv",
    "version": 1
  }
}