Pith Number

pith:56AIAHWA

pith:2011:56AIAHWAVCLHIU7DP6DEDAPDX2

not attested not anchored not stored refs pending

The Optical Gravitational Lensing Experiment. The OGLE-III Catalog of Variable Stars. XIV. Classical and Type II Cepheids in the Galactic Bulge

A. Udalski, G. Pietrzynski, I. Soszynski, K. Ulaczyk, L. Wyrzykowski, M. K. Szymanski, M. Kubiak, P. Pietrukowicz, R. Poleski, S. Kozlowski

arxiv:1112.1406 v2 · 2011-12-06 · 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{56AIAHWAVCLHIU7DP6DEDAPDX2}

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	2026-05-18T04:05:26.698262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef80801ec0a8967453e37f864181e3be9ac382e9f835fd27182b3b742f83a35d

Aliases

arxiv: 1112.1406 · arxiv_version: 1112.1406v2 · doi: 10.48550/arxiv.1112.1406 · pith_short_12: 56AIAHWAVCLH · pith_short_16: 56AIAHWAVCLHIU7D · pith_short_8: 56AIAHWA

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/56AIAHWAVCLHIU7DP6DEDAPDX2 \
  | 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: ef80801ec0a8967453e37f864181e3be9ac382e9f835fd27182b3b742f83a35d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4b6863f0c0d52942bcf19fd241e2de240a40f0204679f352a116cf0a2793ac0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-12-06T21:00:02Z",
    "title_canon_sha256": "f4af5b0e885a08a11508f9c7506a100a1402d885e64d23e3dcbcfcc94c74f6b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.1406",
    "kind": "arxiv",
    "version": 2
  }
}