Pith Number

pith:IRONRKSK

pith:2011:IRONRKSKZ2YR3MU3ICBP3AXBSE

not attested not anchored not stored refs pending

A Classical Cepheid in a LMC eclipsing binary: evidence of shortcomings in current stellar evolutionary models?

Liverpool John Moore Univ.), Maurizio Salaris (ARI, Santi Cassisi (INAF- OACTe)

arxiv:1101.0394 v1 · 2011-01-02 · 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{IRONRKSKZ2YR3MU3ICBP3AXBSE}

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	2026-05-18T02:04:15.933200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

445cd8aa4aceb11db29b4082fd82e19105b490dcb9714875416faf4597523edd

Aliases

arxiv: 1101.0394 · arxiv_version: 1101.0394v1 · doi: 10.48550/arxiv.1101.0394 · pith_short_12: IRONRKSKZ2YR · pith_short_16: IRONRKSKZ2YR3MU3 · pith_short_8: IRONRKSK

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/IRONRKSKZ2YR3MU3ICBP3AXBSE \
  | 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: 445cd8aa4aceb11db29b4082fd82e19105b490dcb9714875416faf4597523edd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d5bf7675e8b028165742171363897ecfe76667da6682b3f2597d00f790a30f5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-01-02T09:36:12Z",
    "title_canon_sha256": "4e817b5fcbe72272a110488255bb6938b82a14fe14be8ec28d68c07d012b434c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.0394",
    "kind": "arxiv",
    "version": 1
  }
}