Pith Number

pith:HIZRRVI5

pith:2013:HIZRRVI5NBRWSRVWDLVXP442DF

not attested not anchored not stored refs pending

Galactic abundance gradients from Cepheids: alpha and heavy elements in the outer disk

B. Lemasle, C. D. Laney, F. Primas, G. Bono, K. Genovali, L. Inno, L. Kaper, M. Bergemann, M. Fabrizio, M. Romaniello, N. Matsunaga, P. Francois, S. Pedicelli, V. V. Kovtyukh

arxiv:1308.3249 v1 · 2013-08-14 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HIZRRVI5NBRWSRVWDLVXP442DF}

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	2026-05-18T01:48:15.408540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a3318d51d68636946b61aeb77f39a197ccb809a7ad94f42049fd70e05931825

Aliases

arxiv: 1308.3249 · arxiv_version: 1308.3249v1 · doi: 10.48550/arxiv.1308.3249 · pith_short_12: HIZRRVI5NBRW · pith_short_16: HIZRRVI5NBRWSRVW · pith_short_8: HIZRRVI5

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/HIZRRVI5NBRWSRVWDLVXP442DF \
  | 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: 3a3318d51d68636946b61aeb77f39a197ccb809a7ad94f42049fd70e05931825

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a2230c456a8c4ded3366c02743e213663f4e9eb3cf9fce7b68089629fce90ae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-08-14T20:34:52Z",
    "title_canon_sha256": "7f473b8517e8b629a49f64d04b339af51af1ee408a48241c40ea39d928847d93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.3249",
    "kind": "arxiv",
    "version": 1
  }
}