Pith Number

pith:4Z2OR46Z

pith:2021:4Z2OR46ZDUYPJ37CUA5BWKLLPD

not attested not anchored not stored refs pending

Period Change Rates in Large Magellanic Cloud Cepheids Revisited

\'A. Valenzuela-Navarro, C. Cenzano, C. Mu\~noz-L\'opez, C. Ordenes-Huanca, C. Orquera-Rojas, E. Garc\'es H., F. Espinoza-Arancibia, G. Boggiano, G. Hajdu, K. Joachimi, M. Catelan, N. Rodr\'iguez-Segovia, P. Torres

arxiv:2111.03503 v1 · 2021-11-05 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4Z2OR46ZDUYPJ37CUA5BWKLLPD}

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.

Cited by

1 paper in Pith

Pulsation periods reveal tension between theoretical and empirical radii for classical Cepheids in eclipsing binary systems

Receipt and verification

First computed	2026-07-05T03:32:27.190757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e674e8f3d91d30f4efe2a03a1b296b78f5054dcd60c2639d8a201b38b73faf4f

Aliases

arxiv: 2111.03503 · arxiv_version: 2111.03503v1 · doi: 10.48550/arxiv.2111.03503 · pith_short_12: 4Z2OR46ZDUYP · pith_short_16: 4Z2OR46ZDUYPJ37C · pith_short_8: 4Z2OR46Z

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/4Z2OR46ZDUYPJ37CUA5BWKLLPD \
  | 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: e674e8f3d91d30f4efe2a03a1b296b78f5054dcd60c2639d8a201b38b73faf4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4675cd79d293f050074182145cfef40f12cffeccc3da146b00c002cb963ea236",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-11-05T13:47:01Z",
    "title_canon_sha256": "09d833ecaa6097ab6a8ab72f199912a9d587996d94dfd8d9ecf23f79512ce2e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.03503",
    "kind": "arxiv",
    "version": 1
  }
}