Pith Number

pith:VG3SNQJV

pith:2005:VG3SNQJVJETJ7QSS6A7XEEJ23M

not attested not anchored not stored refs pending

Near-Infrared Photometric Monitoring of a Pre-Main-Sequence Object KH 15D

Akika Ishihara, Daisuke Baba, Edwin L. Turner, Hiroshi Kimura, Koji Sugitani, Lyu Abe, Motohide Tamura, Nobuhiko Kusakabe, Ryo Kandori, Shogo Nishiyama, Shuji Sato, Takahiro Nagayama, Tetsuo Yamamoto, Tetsuya Nagata, Yasushi Nakajima

arxiv:astro-ph/0509389 v1 · 2005-09-14 · 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{VG3SNQJVJETJ7QSS6A7XEEJ23M}

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	2026-07-04T17:15:10.079114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9b726c13549269fc252f03f72113adb002d039e1ea96d5e709c907d704ab095

Aliases

arxiv: astro-ph/0509389 · arxiv_version: astro-ph/0509389v1 · doi: 10.48550/arxiv.astro-ph/0509389 · pith_short_12: VG3SNQJVJETJ · pith_short_16: VG3SNQJVJETJ7QSS · pith_short_8: VG3SNQJV

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/VG3SNQJVJETJ7QSS6A7XEEJ23M \
  | 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: a9b726c13549269fc252f03f72113adb002d039e1ea96d5e709c907d704ab095

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b9fb6604d7462e4cbad9472da29e2b2947ed9871b6ecc037078b6586c66151e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-14T12:44:57Z",
    "title_canon_sha256": "0e11d2094544403afb85e88d211dbce88382e7529121c5003192d311d24dfc6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509389",
    "kind": "arxiv",
    "version": 1
  }
}