Pith Number

pith:WGBWN72Q

pith:2011:WGBWN72QYK3EQQXIUJP4IIDXT6

not attested not anchored not stored refs pending

Calibrating the Cepheid Period-Luminosity relation from the infrared surface brightness technique I. The p-factor, the Milky Way relations, and a universal K-band relation

(2) Universidad de Concepcion, (3) IRAP Toulouse, (4) Univ. of Texas at Austin, 5), (5) Warsaw University Observatory, (6) Laboratoire Fizeau, G. Pietrzynski (2, J. Storm (1), K. Strassmeier (1) ((1) Leibniz Institute for Astrophysics, M. Weber (1), Nice), N. Nardetto (6), P. Fouque (3), Potsdam, T.G. Barnes (4), T. Granzer (1), UNS/OCA/CNRS, W. Gieren (2)

arxiv:1109.2017 v1 · 2011-09-09 · astro-ph.CO · astro-ph.SR

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\usepackage{pith}
\pithnumber{WGBWN72QYK3EQQXIUJP4IIDXT6}

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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	2026-05-18T02:00:37.198931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b18366ff50c2b64842e8a25fc420779fa7ba826d6a08ae973ba1e17121642bf7

Aliases

arxiv: 1109.2017 · arxiv_version: 1109.2017v1 · doi: 10.48550/arxiv.1109.2017 · pith_short_12: WGBWN72QYK3E · pith_short_16: WGBWN72QYK3EQQXI · pith_short_8: WGBWN72Q

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/WGBWN72QYK3EQQXIUJP4IIDXT6 \
  | 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: b18366ff50c2b64842e8a25fc420779fa7ba826d6a08ae973ba1e17121642bf7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "faac89a4f5f0c44ca7d35fcef42c48d13bc6c67fe8d1427775b6e619214f7774",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-09T14:07:35Z",
    "title_canon_sha256": "444ad69fa9f6c3c86f25650fe03e02fb2bcab8c53742c4933ab3f701d26ded98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2017",
    "kind": "arxiv",
    "version": 1
  }
}