Pith Number

pith:OETLGFTE

pith:2009:OETLGFTEQ6TPUKSL2ZYSTFKDXK

not attested not anchored not stored refs pending

Early Spectral Evolution of the Rapidly Expanding Type Ia SN 2006X

((1) Department of Physical Science, 2, 3), (3) Astronomical Institute, Hiroshima University, Hiroshima University (2) Hiroshima Astrophysical Science Center, Hiroyuki Naito (4), Kenzo Kinugasa (5), Koji S. Kawabata (2), Kozo Sadakane (3), Masaomi Tanaka (7), Masayuki Yamanaka (1, Naohiro Takanashi (6), National Astronomical Observatory of Japan), Osaka Kyoiku University (4) Nishi-Harima Astronomical Observatory (5) Gunma Astronomical Observatory (6) National Astronomical Observatory of Japan (7) Department of Astronomy, School of Science, Shinobu Ozaki (8), Shin-ya Narusawa (4), University of Tokyo (8) Okayama Astrophysical Observatory

arxiv:0904.2763 v1 · 2009-04-17 · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OETLGFTEQ6TPUKSL2ZYSTFKDXK}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:13:59.391920Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7126b3166487a6fa2a4bd671299543baa5e3e47e34879b64d371a6c6a6a97a4f

Aliases

arxiv: 0904.2763 · arxiv_version: 0904.2763v1 · doi: 10.48550/arxiv.0904.2763 · pith_short_12: OETLGFTEQ6TP · pith_short_16: OETLGFTEQ6TPUKSL · pith_short_8: OETLGFTE

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/OETLGFTEQ6TPUKSL2ZYSTFKDXK \
  | 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: 7126b3166487a6fa2a4bd671299543baa5e3e47e34879b64d371a6c6a6a97a4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d46413e0a7e0d5f010c85fa4e32555e864cd82e74b71aad94e699d7efb5891d4",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-04-17T18:40:10Z",
    "title_canon_sha256": "c1b05393c1055bb37f7c8d4c6dcdd1f912f2459cd8b2757d0f3de636e6be9737"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2763",
    "kind": "arxiv",
    "version": 1
  }
}