Pith Number

pith:V77JLQ7I

pith:2012:V77JLQ7I5TS7WAZ3OIE5VQXGER

not attested not anchored not stored refs pending

Exploring the alpha-enhancement of metal-poor planet-hosting stars. The Kepler and HARPS samples

A. A. Hakobyan, E. Delgado Mena, G. Israelian, J. I. Gonzalez Hernandez, M. Mayor, N. C. Santos, S. G. Sousa, V. Zh. Adibekyan

arxiv:1209.6272 v2 · 2012-09-27 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V77JLQ7I5TS7WAZ3OIE5VQXGER}

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	2026-05-18T03:41:19.908096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

affe95c3e8ece5fb033b7209dac2e624588ef593ec6eb8265a1d6141a46c0759

Aliases

arxiv: 1209.6272 · arxiv_version: 1209.6272v2 · doi: 10.48550/arxiv.1209.6272 · pith_short_12: V77JLQ7I5TS7 · pith_short_16: V77JLQ7I5TS7WAZ3 · pith_short_8: V77JLQ7I

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/V77JLQ7I5TS7WAZ3OIE5VQXGER \
  | 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: affe95c3e8ece5fb033b7209dac2e624588ef593ec6eb8265a1d6141a46c0759

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92bcc066f2c5d090949ea6c06930fe2f8418eff1a6207159246bc3ddc9081c40",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-09-27T16:28:21Z",
    "title_canon_sha256": "27408406752bc236efb4e96f4ca3a2087d213173f550cdd5b7bfc37337e65923"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.6272",
    "kind": "arxiv",
    "version": 2
  }
}