Pith Number

pith:JMASXW2C

pith:2025:JMASXW2CS2K32Q6YZPKLGRHQTI

not attested not anchored not stored refs pending

Non-evolutionary effects on period change in Magellanic Cepheids II. Empirical constraints on non-linear period changes

Andrzej Udalski, Gergely Hajdu, Igor Soszy\'nski, Oliwia Zi\'o{\l}kowska, Paulina Karczmarek, Rados{\l}aw Smolec, Rajeev Singh Rathour, Vincent Hocd\'e

arxiv:2503.00661 v1 · 2025-03-01 · 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{JMASXW2CS2K32Q6YZPKLGRHQTI}

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	2026-07-05T10:22:27.026135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b012bdb429695bd43d8cbd4b344f09a2910957c6f1a6f3bfc20cf63fbfc978b

Aliases

arxiv: 2503.00661 · arxiv_version: 2503.00661v1 · doi: 10.48550/arxiv.2503.00661 · pith_short_12: JMASXW2CS2K3 · pith_short_16: JMASXW2CS2K32Q6Y · pith_short_8: JMASXW2C

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/JMASXW2CS2K32Q6YZPKLGRHQTI \
  | 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: 4b012bdb429695bd43d8cbd4b344f09a2910957c6f1a6f3bfc20cf63fbfc978b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a5be53e8465657b14734ba9e4df965ddb3106826e58a7031a936ccd7f706f7b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-03-01T23:25:30Z",
    "title_canon_sha256": "a5cc353939520aebaec23bde25a132fa3890c66206167ced3b078d4e6f502ac5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.00661",
    "kind": "arxiv",
    "version": 1
  }
}