Pith Number

pith:S35J2XST

pith:2002:S35J2XSTIRG6F63DLBUUAGKM6H

not attested not anchored not stored refs pending

The Type Ic Hypernova SN 2002ap

A. V. Filippenko, C. L. Gerardy, G. Kosugi, G. Zhao, H. Kawakita, H. Tomita, H. Umeda, H. Yamaoka, J. Deng, K. Ayani, K. Enya, K. Hatano, K. Iwamoto, K. Kinugasa, K. Maeda, K. Motohara, K. Nomoto, K. S. Kawabata, M. Doi, M. Iye, M. Takada-Hidai, M. Turatto, N. Kashikawa, P. A. Mazzali, R. Chornock, R. Fesen, S. Benetti, S.J. Smartt, T. Kawabata, T. Minezaki, Y. Kobayashi, Y.L. Qiu, Y. Ohyama, Y. Yoshii

arxiv:astro-ph/0204007 v2 · 2002-03-31 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S35J2XSTIRG6F63DLBUUAGKM6H}

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	2026-07-04T15:45:41.346851Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96fa9d5e53444de2fb63586940194cf1eb6892110316b1f762a3750aaf1d2ef2

Aliases

arxiv: astro-ph/0204007 · arxiv_version: astro-ph/0204007v2 · doi: 10.48550/arxiv.astro-ph/0204007 · pith_short_12: S35J2XSTIRG6 · pith_short_16: S35J2XSTIRG6F63D · pith_short_8: S35J2XST

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/S35J2XSTIRG6F63DLBUUAGKM6H \
  | 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: 96fa9d5e53444de2fb63586940194cf1eb6892110316b1f762a3750aaf1d2ef2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "289e0683e5b2ac02f38327445de6bee3c6a8cc615994a3c263286e8bf9ca7222",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-03-31T06:41:44Z",
    "title_canon_sha256": "9ca94e528f60ec74b6e494aad620cbd6ccc188d1b0512ece51cf6c53515aa512"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0204007",
    "kind": "arxiv",
    "version": 2
  }
}