Pith Number

pith:4UQXIIPO

pith:2013:4UQXIIPO2CJDQ2SEXWHS5CD3ML

not attested not anchored not stored refs pending

The puzzle of the CNO abundances of {\alpha} Cygni variables resolved by the Ledoux criterion?

Cyril Georgy, Georges Meynet, Hideyuki Saio

arxiv:1311.4744 v1 · 2013-11-19 · 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{4UQXIIPO2CJDQ2SEXWHS5CD3ML}

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	2026-05-18T01:46:23.095024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5217421eed092386a44bd8f2e887b62e5c9d617e49647d05b27b75f7554b104

Aliases

arxiv: 1311.4744 · arxiv_version: 1311.4744v1 · doi: 10.48550/arxiv.1311.4744 · pith_short_12: 4UQXIIPO2CJD · pith_short_16: 4UQXIIPO2CJDQ2SE · pith_short_8: 4UQXIIPO

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/4UQXIIPO2CJDQ2SEXWHS5CD3ML \
  | 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: e5217421eed092386a44bd8f2e887b62e5c9d617e49647d05b27b75f7554b104

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24579d2a7027982925dcd3cdc45aac1de6e7564fe0cf7890227de15812b1ce3c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-11-19T14:06:18Z",
    "title_canon_sha256": "87b6693d5e23531e6332a011d6b7d55eae5bb9fcaeab1de9f918e7b587b90bbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4744",
    "kind": "arxiv",
    "version": 1
  }
}