Pith Number

pith:WESRLXRF

pith:2013:WESRLXRFW6ETX2IH6A4NOPGYSP

not attested not anchored not stored refs pending

A Super-Solar Metallicity for the Progenitor of Kepler's Supernova

Andrew Schenck (U of Texas at Arlington), Carles Badenes (U of Pittsburgh), David N. Burrows (Penn State), Eduardo Bravo (U Politecnica de Catalunya), Jae-Joon Lee (KASI), John P. Hughes (Rutgers), Koji Mori, Kristoffer A. Eriksen (LANL), Patrick O. Slane (CfA), Ryohei Kaida (U of Miyazaki), Sangwook Park (U of Texas at Arlington)

arxiv:1302.5435 v2 · 2013-02-21 · 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{WESRLXRFW6ETX2IH6A4NOPGYSP}

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	2026-05-18T01:51:34.285152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b12515de25b7893be907f038d73cd893d26f986c3877d88082c9351a08778e18

Aliases

arxiv: 1302.5435 · arxiv_version: 1302.5435v2 · doi: 10.48550/arxiv.1302.5435 · pith_short_12: WESRLXRFW6ET · pith_short_16: WESRLXRFW6ETX2IH · pith_short_8: WESRLXRF

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/WESRLXRFW6ETX2IH6A4NOPGYSP \
  | 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: b12515de25b7893be907f038d73cd893d26f986c3877d88082c9351a08778e18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b89380ff92d6a15d35e62ffffae9d411d21c9ac3211040be7d2d39f0fa5c252",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-02-21T21:08:04Z",
    "title_canon_sha256": "a61f844b6c5988c757b2e2a73db767d399015e8e5ceaa2126a973a10b3212c29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.5435",
    "kind": "arxiv",
    "version": 2
  }
}