Pith Number

pith:NPNPLC4Q

pith:2009:NPNPLC4QOJ26GSE2UC3HPLGJQJ

not attested not anchored not stored refs pending

Early phase observations of extremely luminous Type Ia Supernova 2009dc

A. Arai, A. Imada, D. Kuroda, H. Miyamoto, H. Nakaya, H. Taguchi, H. Takahashi, H. Tanaka, K. Kinugasa, K. Maeda, K. Nomoto, K. S. Kawabata, K. Yanagisawa, M. Sasada, M. Suzuki, M. Tanaka, M. Uemura, M. Yamanaka, M. Yoshida, N. Kawai, N. Sakai, O. Hashimoto, O. Nagae, R. Itoh, S. Chiyonobu, S. Honda, S. Miyazaki, T. Komatsu, T. Ohsugi, T. Omodaka, T. Yamashita, Y. Fukazawa, Y. Ikejiri, Y. Kamata

arxiv:0908.2059 v1 · 2009-08-14 · astro-ph.HE · 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{NPNPLC4QOJ26GSE2UC3HPLGJQJ}

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	2026-05-18T02:12:34.257875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bdaf58b907275e3489aa0b677acc982501cf92d980dfafc1a3b1f6597352539

Aliases

arxiv: 0908.2059 · arxiv_version: 0908.2059v1 · doi: 10.48550/arxiv.0908.2059 · pith_short_12: NPNPLC4QOJ26 · pith_short_16: NPNPLC4QOJ26GSE2 · pith_short_8: NPNPLC4Q

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/NPNPLC4QOJ26GSE2UC3HPLGJQJ \
  | 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: 6bdaf58b907275e3489aa0b677acc982501cf92d980dfafc1a3b1f6597352539

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02f17686eabd30cb2453f8e45278094e8d7dca62bf4d87a9fafca02227b8c0a3",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-08-14T15:55:20Z",
    "title_canon_sha256": "5192c70de0b056f04176b3b6e0ba0ae54ee93319820daf8351d1f1386263c715"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2059",
    "kind": "arxiv",
    "version": 1
  }
}