Pith Number

pith:5WBYF2BI

pith:2013:5WBYF2BIZAL7CJWCZMETPCGOD4

not attested not anchored not stored refs pending

HD 140283: A Star in the Solar Neighborhood that Formed Shortly After the Big Bang

2), (2) Space Telescope Science Institute, (3) University of Victoria, (4) CHARA Array, (5) NOAO), Dianne Harmer (5) ((1) Pennsylvania State University, Don A. VandenBerg (3), Edmund P. Nelan (2), Gail H. Schaefer (4), Georgia State University, Howard E. Bond (1

arxiv:1302.3180 v1 · 2013-02-13 · 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{5WBYF2BIZAL7CJWCZMETPCGOD4}

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	2026-05-18T03:33:48.497830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed8382e828c817f126c2cb093788ce1f3a22fdb288ce52f7dc26f2d991733be9

Aliases

arxiv: 1302.3180 · arxiv_version: 1302.3180v1 · doi: 10.48550/arxiv.1302.3180 · pith_short_12: 5WBYF2BIZAL7 · pith_short_16: 5WBYF2BIZAL7CJWC · pith_short_8: 5WBYF2BI

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/5WBYF2BIZAL7CJWCZMETPCGOD4 \
  | 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: ed8382e828c817f126c2cb093788ce1f3a22fdb288ce52f7dc26f2d991733be9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "029d8b640bb448950654062a18c754ef28aa967aab78f292a1200dfd78a72f4e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-02-13T18:16:23Z",
    "title_canon_sha256": "891a96a4ffeb50b1afeb65072ef5382e8b13d4fd9dfc5355cfac0821ae00a2ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.3180",
    "kind": "arxiv",
    "version": 1
  }
}