Pith Number

pith:BQPGBK3A

pith:2024:BQPGBK3AZK42BTSDNOYUMSQBS7

not attested not anchored not stored refs pending

Discovery of the Longest-Period Classical Cepheid in the Milky Way

A. Udalski, D. M. Skowron, I. Soszy\'nski, J. Skowron, K. Rybicki, K. Ulaczyk, M. Gromadzki, M. K. Szyma\'nski, M. Mr\'oz, M. Wrona, P. Iwanek, P. Mr\'oz, P. Pietrukowicz, R. Poleski, S. Koz{\l}owski

arxiv:2404.00151 v1 · 2024-03-29 · 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{BQPGBK3AZK42BTSDNOYUMSQBS7}

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

Blue Loops, Cepheids, and Forays into Axions

Receipt and verification

First computed	2026-07-05T08:02:28.865742Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c1e60ab60cab9a0ce436bb1464a0197fcf075b574267e705430f0a24e40c702

Aliases

arxiv: 2404.00151 · arxiv_version: 2404.00151v1 · doi: 10.48550/arxiv.2404.00151 · pith_short_12: BQPGBK3AZK42 · pith_short_16: BQPGBK3AZK42BTSD · pith_short_8: BQPGBK3A

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/BQPGBK3AZK42BTSDNOYUMSQBS7 \
  | 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: 0c1e60ab60cab9a0ce436bb1464a0197fcf075b574267e705430f0a24e40c702

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9220b9115efa9ee6ef2cdebe6ae0c09cf9fe9d1a093888323d0fba29252f1dc6",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2024-03-29T20:53:57Z",
    "title_canon_sha256": "f44096ed1ba050e16c4824462dbc5f90873222e73e7a3941b1b9c809bbdbc33b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.00151",
    "kind": "arxiv",
    "version": 1
  }
}