Pith Number

pith:PUNF3CSE

pith:2009:PUNF3CSE6LKSHUS6AVOFNSJNBN

not attested not anchored not stored refs pending

Spectroscopic Observations of the WZ Sge-Type Dwarf Nova GW Librae during the 2007 Superoutburst

Akira Imada, Daisaku Nogami, Hiroyuki Naito, Kazuo Hiroi, Kentaro Matsuda, Kenzo Kinugasa, Makoto Sakamoto, Mitsugu Fujii, Osamu Hashimoto, Ryo Iizuka, Satoshi Honda, Shin-ya Narusawa, Takashi Iijima, Yoshihiro Ueda, Yuichi Soejima, Yuuki Moritani

arxiv:0904.3425 v1 · 2009-04-22 · 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{PUNF3CSE6LKSHUS6AVOFNSJNBN}

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	2026-05-18T02:13:58.182283Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d1a5d8a44f2d523d25e055c56c92d0b5904a5c6750fce66f31790034a47a272

Aliases

arxiv: 0904.3425 · arxiv_version: 0904.3425v1 · doi: 10.48550/arxiv.0904.3425 · pith_short_12: PUNF3CSE6LKS · pith_short_16: PUNF3CSE6LKSHUS6 · pith_short_8: PUNF3CSE

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/PUNF3CSE6LKSHUS6AVOFNSJNBN \
  | 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: 7d1a5d8a44f2d523d25e055c56c92d0b5904a5c6750fce66f31790034a47a272

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "698fdc98246907267ee6e231dde679c66d60bb0cb735e6c65b0bf0aabd568afa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-04-22T10:18:24Z",
    "title_canon_sha256": "450855c56b8734f4d0023a122f8bd0a2417725e68ccb44e5f3b5c9d639001597"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3425",
    "kind": "arxiv",
    "version": 1
  }
}