Pith Number

pith:TRMKYX2A

pith:2003:TRMKYX2A3OI5BQNQTI2AAHSLSW

not attested not anchored not stored refs pending

Line profile variations in classical Cepheids. Evidence for non-radial pulsations?

N.I. Gorlova (The University of Arizona), R.E. Luck (Case Western Reserve University), S.M. Andrievsky (Odessa State University, Ukraine), V.V. Kovtyukh

arxiv:astro-ph/0302043 v1 · 2003-02-04 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TRMKYX2A3OI5BQNQTI2AAHSLSW}

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	2026-05-18T04:21:41.951259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c58ac5f40db91d0c1b09a34001e4b9592b1997888c8533abcef043af0fe4b0a

Aliases

arxiv: astro-ph/0302043 · arxiv_version: astro-ph/0302043v1 · doi: 10.48550/arxiv.astro-ph/0302043 · pith_short_12: TRMKYX2A3OI5 · pith_short_16: TRMKYX2A3OI5BQNQ · pith_short_8: TRMKYX2A

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/TRMKYX2A3OI5BQNQTI2AAHSLSW \
  | 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: 9c58ac5f40db91d0c1b09a34001e4b9592b1997888c8533abcef043af0fe4b0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b782ea1ba9cbb85c02fb5de602425ad75a5297972f00b34a52eb9cb922709e1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-02-04T03:33:06Z",
    "title_canon_sha256": "57f6af3f25f97a357b4eb2b07bb8570f76173982bc17951506872698dc21a848"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0302043",
    "kind": "arxiv",
    "version": 1
  }
}