Pith Number

pith:JDAK2B6I

pith:2010:JDAK2B6IWZU4OO25WJRYJUNBW3

not attested not anchored not stored refs pending

Local stars formed at z>10: a sample extracted from the SDSS

2), 2) ((1) Max-Planck Institute for Astrophysiscs, (2) GEPI, 3), (3) INAF - Osservatorio Astronomico di Trieste, (4) ZAH - Landessternwarte Heidelberg, CNRS, Elisabetta Caffau (4, France, Garching, Germany, Germany), Hans-Guenter Ludwig (4, Italy, Luca Sbordone (1, Observatoire de Paris, Piercarlo Bonifacio (2, Universite' Paris Diderot

arxiv:1009.5210 v2 · 2010-09-27 · 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{JDAK2B6IWZU4OO25WJRYJUNBW3}

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	2026-05-18T04:31:30.930265Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48c0ad07c8b669c73b5db26384d1a1b6f6b5e949f8f149d363525de2096daa31

Aliases

arxiv: 1009.5210 · arxiv_version: 1009.5210v2 · doi: 10.48550/arxiv.1009.5210 · pith_short_12: JDAK2B6IWZU4 · pith_short_16: JDAK2B6IWZU4OO25 · pith_short_8: JDAK2B6I

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/JDAK2B6IWZU4OO25WJRYJUNBW3 \
  | 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: 48c0ad07c8b669c73b5db26384d1a1b6f6b5e949f8f149d363525de2096daa31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e26eb523912b09b40fdf533cf8ab34c0be814ebcba16ca579259b8684c2806c7",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-09-27T10:03:35Z",
    "title_canon_sha256": "d5ffc3d4193f13824d318b7bb7a6e6c4919ea38e48f5676d2831797e81984657"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.5210",
    "kind": "arxiv",
    "version": 2
  }
}