Pith Number

pith:MJZFDAKU

pith:2012:MJZFDAKUFQUSUQOMQU2HAFXDWR

not attested not anchored not stored refs pending

The radius and mass of the close solar twin 18 Sco derived from asteroseismology and interferometry

A.-M. Broomhall, B. Dintrans, D. Huber, H. A. McAlister, H. Carfantan, H. Kjeldsen, J. Christensen-Dalsgaard, J. D. do Nascimento Jr, J. Mel\'endez, J. Sturmann, L. Sturmann, M. Asplund, M. Bazot, M. Castro, M. J. Ireland, M. J. P. F. G.Monteiro, N. C. Santos, N. Turner, P. Petit, S.Sousa, S. Th\'eado, S. Vauclair, T. Arentoft, T. A. ten Brummelaar, T. L. Campante, T. R. Bedding, T. S. Metcalfe, V. Van Grootel, W. J. Chaplin, X. Dumusque, Y. Elsworth

arxiv:1209.0217 v2 · 2012-09-02 · 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{MJZFDAKUFQUSUQOMQU2HAFXDWR}

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	2026-05-18T01:54:48.397579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62725181542c292a41cc85347016e3b46f42f2905778d5403a2c312ba14abf80

Aliases

arxiv: 1209.0217 · arxiv_version: 1209.0217v2 · doi: 10.48550/arxiv.1209.0217 · pith_short_12: MJZFDAKUFQUS · pith_short_16: MJZFDAKUFQUSUQOM · pith_short_8: MJZFDAKU

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/MJZFDAKUFQUSUQOMQU2HAFXDWR \
  | 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: 62725181542c292a41cc85347016e3b46f42f2905778d5403a2c312ba14abf80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c09eedfdb6b85124aeca573987765e8aa4795521bab04476798b8e9fccd907d8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-09-02T22:22:39Z",
    "title_canon_sha256": "a01650a9d70a5de2f6fb7c57d8a838867d62574cd6f2bd271f6bceb93e807af4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.0217",
    "kind": "arxiv",
    "version": 2
  }
}