Pith Number

pith:4E7OTVFB

pith:2012:4E7OTVFBERJTBY7JOFV2ZGDNNS

not attested not anchored not stored refs pending

An extremely primitive halo star

2), (2) GEPI - Obs. de Paris, 2). L. Monaco (5), 3). L. Sbordone (1, (3) Univ. de Picardie Jules Verne, 4, (4) Max Planck Institut f\"ur Astrophysik, (5) ESO - Santiago, (6) INAF - Osservatorio Astronomico di Padova, (7) INAF - Osservatorio Astrofisico di Arcetri, (8) INAF - Osservatorio Astronomico di Trieste, (9) Univ. de Nice Sophia Antipolis, CNRS, E. Caffau (1, F. Hammer (2), F. Spite (2), H.-G. Ludwig (1, Lab. Cassiop\'ee), M. Spite (2), OCA, P. Bonifacio (2), P. Fran\c{c}ois (2, P. Molaro (8), R. Cayrel (2), S. Randich (7), S. Zaggia (6), Univ. Paris Diderot, V. Hill (9)((1) ZAH-LSW Heidelberg

arxiv:1203.2612 v1 · 2012-03-12 · 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{4E7OTVFBERJTBY7JOFV2ZGDNNS}

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	2026-05-18T04:00:15.144910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e13ee9d4a1245330e3e9716bac986d6ca0f6144421950ec3e1e1c5a34303384a

Aliases

arxiv: 1203.2612 · arxiv_version: 1203.2612v1 · doi: 10.48550/arxiv.1203.2612 · pith_short_12: 4E7OTVFBERJT · pith_short_16: 4E7OTVFBERJTBY7J · pith_short_8: 4E7OTVFB

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/4E7OTVFBERJTBY7JOFV2ZGDNNS \
  | 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: e13ee9d4a1245330e3e9716bac986d6ca0f6144421950ec3e1e1c5a34303384a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4aa462861a3719a22d638bf722f916e0e416d6fbd39ca53a2bef22a226366bfb",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-03-12T20:00:03Z",
    "title_canon_sha256": "fb6675b0d4a82ce3885adf1e2037ccd6d522251d1121bbc3f9e74db28b486e72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.2612",
    "kind": "arxiv",
    "version": 1
  }
}