Pith Number

pith:JXMP2MTX

pith:2008:JXMP2MTXS3XLUKOYLA2QL6VZ2D

not attested not anchored not stored refs pending

The minimum stellar metallicity observable in the Galaxy

Anna Frebel, Jarrett L. Johnson, Volker Bromm

arxiv:0811.0020 v1 · 2008-10-31 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JXMP2MTXS3XLUKOYLA2QL6VZ2D}

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	2026-07-04T17:13:24.658808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4dd8fd327796eeba29d8583505fab9d0e7308fe03b773f1b30bde33f64fa390f

Aliases

arxiv: 0811.0020 · arxiv_version: 0811.0020v1 · doi: 10.48550/arxiv.0811.0020 · pith_short_12: JXMP2MTXS3XL · pith_short_16: JXMP2MTXS3XLUKOY · pith_short_8: JXMP2MTX

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/JXMP2MTXS3XLUKOYLA2QL6VZ2D \
  | 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: 4dd8fd327796eeba29d8583505fab9d0e7308fe03b773f1b30bde33f64fa390f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "368e1f09bb9497e91a3bad403ef5c5e9d49bce2145c6a79d1787274433dc1c2e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-10-31T20:48:38Z",
    "title_canon_sha256": "1242a1b43329f233db7313cc2ea27db6040cba2ef744f0b1d0d1bf386a56d247"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.0020",
    "kind": "arxiv",
    "version": 1
  }
}