Pith Number

pith:NNXKPSGY

pith:2012:NNXKPSGYQBXAYSEEQKY6YQQISZ

not attested not anchored not stored refs pending

Principal Component Abundance Analysis of Microlensed Bulge Dwarf and Subgiant Stars

Brett H. Andrews, David H. Weinberg, Jennifer A. Johnson, Sofia Feltzing, Thomas Bensby

arxiv:1205.4715 v2 · 2012-05-21 · astro-ph.GA · 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{NNXKPSGYQBXAYSEEQKY6YQQISZ}

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	2026-05-18T03:46:47.161668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b6ea7c8d8806e0c488482b1ec420896631548cf7d57c6c29dd2dc9529e4d2de

Aliases

arxiv: 1205.4715 · arxiv_version: 1205.4715v2 · doi: 10.48550/arxiv.1205.4715 · pith_short_12: NNXKPSGYQBXA · pith_short_16: NNXKPSGYQBXAYSEE · pith_short_8: NNXKPSGY

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/NNXKPSGYQBXAYSEEQKY6YQQISZ \
  | 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: 6b6ea7c8d8806e0c488482b1ec420896631548cf7d57c6c29dd2dc9529e4d2de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a329a017a8de1b4be6608b4d59d23dcf78ba3c57d696965d27c43aab9f0046c",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-05-21T20:00:01Z",
    "title_canon_sha256": "9668f7d303432006b7c8f28eea0f7e01764079af864f4c5b3e350bc3faac0e46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.4715",
    "kind": "arxiv",
    "version": 2
  }
}