Pith Number

pith:G2URAMZ2

pith:2013:G2URAMZ23KN4NQUOASNOUSKLR5

not attested not anchored not stored refs pending

C, N, O, and Na Abundances of Cepheid Variables: Implications on the Mixing Process in the Envelope

B.-C. Lee, D.-I. Kang, I. Han, K.-M. Kim, Y. Takeda

arxiv:1303.6593 v1 · 2013-03-25 · 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{G2URAMZ23KN4NQUOASNOUSKLR5}

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	2026-05-18T01:50:52.452277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36a910333ada9bc6c28e049aea494b8f6e82da3403b00da977c874f7c7341ba6

Aliases

arxiv: 1303.6593 · arxiv_version: 1303.6593v1 · doi: 10.48550/arxiv.1303.6593 · pith_short_12: G2URAMZ23KN4 · pith_short_16: G2URAMZ23KN4NQUO · pith_short_8: G2URAMZ2

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/G2URAMZ23KN4NQUOASNOUSKLR5 \
  | 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: 36a910333ada9bc6c28e049aea494b8f6e82da3403b00da977c874f7c7341ba6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38726c1d6c7612b1ea9f98ce8e1bcd4352c6bf08e265577ecec2a1c822bd271c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-03-25T12:15:57Z",
    "title_canon_sha256": "b4d7ab7290527814f59163ca40abb97e71068fecc9e0a166ddf6e1bfcfd3da53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.6593",
    "kind": "arxiv",
    "version": 1
  }
}