Pith Number

pith:D7WBG5FO

pith:2011:D7WBG5FOF3XBECEUB74FIMM47U

not attested not anchored not stored refs pending

Photometry of Variable Stars from Dome A, Antarctica

Carl R. Pennypacker, Daniel Luong-Van, Donald G. York, Huigen Yang, Ji Yang, John W. V. Storey, Jon S. Lawrence, Kevin Krisciunas, Lifan Wang, Lingzhi Wang, Long-long Feng, Lucas M. Macri, Michael C. B. Ashley, Qiang Liu, Xiangqun Cui, Xiangyan Yuan, Xuefei Gong, Xu Zhou, Zhaohui Shang, Zhenxi Zhu, Zonghong Zhu

arxiv:1108.0509 v2 · 2011-08-02 · astro-ph.SR · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D7WBG5FOF3XBECEUB74FIMM47U}

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	2026-05-18T02:01:04.454469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fec1374ae2eee1208940ff854319cfd24f51df6e6c0345cd37779313c3872c8

Aliases

arxiv: 1108.0509 · arxiv_version: 1108.0509v2 · doi: 10.48550/arxiv.1108.0509 · pith_short_12: D7WBG5FOF3XB · pith_short_16: D7WBG5FOF3XBECEU · pith_short_8: D7WBG5FO

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/D7WBG5FOF3XBECEUB74FIMM47U \
  | 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: 1fec1374ae2eee1208940ff854319cfd24f51df6e6c0345cd37779313c3872c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3b7e06402b1f3a1e07ce71ae412e4f9778fa574d77c163d0c10e9b49faba61c",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-08-02T08:18:40Z",
    "title_canon_sha256": "d2a5f59c80f3a567f869745d69a6a3e7bfd46c407feeba9765e05c7dcc753219"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.0509",
    "kind": "arxiv",
    "version": 2
  }
}