Pith Number

pith:2EG5WAZN

pith:2013:2EG5WAZNOUGTXDU46KEHE3T6NF

not attested not anchored not stored refs pending

Determination of the iron content of Cepheids from the shape of their light curves

A. Szing, L. Szabados, N. Mowlavi, P. Klagyivik, S. Leccia

arxiv:1307.8275 v1 · 2013-07-31 · 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{2EG5WAZNOUGTXDU46KEHE3T6NF}

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	2026-05-18T03:17:01.770919Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d10ddb032d750d3b8e9cf288726e7e6946b67c43ffb80bc01d7155e767650204

Aliases

arxiv: 1307.8275 · arxiv_version: 1307.8275v1 · doi: 10.48550/arxiv.1307.8275 · pith_short_12: 2EG5WAZNOUGT · pith_short_16: 2EG5WAZNOUGTXDU4 · pith_short_8: 2EG5WAZN

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/2EG5WAZNOUGTXDU46KEHE3T6NF \
  | 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: d10ddb032d750d3b8e9cf288726e7e6946b67c43ffb80bc01d7155e767650204

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83d94d13cc76b8f718f526b725b2399cd26b7f33e6f51f4cfd3019a7acd5bfb0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-07-31T10:41:36Z",
    "title_canon_sha256": "f16d2f8914de932d6909c4e714917d42fc9be34e952ff7b0c03ed71ba55e8c50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.8275",
    "kind": "arxiv",
    "version": 1
  }
}