Pith Number

pith:QAEK2ZNB

pith:2013:QAEK2ZNBJXCGUOTSG5GBSHJK5V

not attested not anchored not stored refs pending

Binary Cepheids: Separations and Mass Ratios in $5\,M_\odot$ Binaries

Brian D. Mason (USNO), Evan Tingle (SAO), Gail H. Schaefer (The CHARA Array, GSU), Howard E. Bond (PSU, Margarita Karovska (SAO), Nancy Remage Evans (SAO), STScI)

arxiv:1307.7123 v1 · 2013-07-26 · 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{QAEK2ZNBJXCGUOTSG5GBSHJK5V}

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	2026-05-18T01:48:34.057138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8008ad65a14dc46a3a72374c191d2aed59616a3cfc34130d4019021369296815

Aliases

arxiv: 1307.7123 · arxiv_version: 1307.7123v1 · doi: 10.48550/arxiv.1307.7123 · pith_short_12: QAEK2ZNBJXCG · pith_short_16: QAEK2ZNBJXCGUOTS · pith_short_8: QAEK2ZNB

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/QAEK2ZNBJXCGUOTSG5GBSHJK5V \
  | 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: 8008ad65a14dc46a3a72374c191d2aed59616a3cfc34130d4019021369296815

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5153a66577d3bed8718e8b8623477bf7d81c99c683d9afaa3dc8165fbe4442d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-07-26T18:41:31Z",
    "title_canon_sha256": "7d690cdd29ead5c9e2673463c0eea569b8a30439f190411782e8df89a6f347f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.7123",
    "kind": "arxiv",
    "version": 1
  }
}