Pith Number

pith:Q7YO5MLX

pith:2009:Q7YO5MLXPO6PHGCBHADOJRNLY7

not attested not anchored not stored refs pending

Chemical Abundances of the Outer Halo Stars in the Milky Way

(2) National Astronomical Observatory of Japan), M. Chiba (1), M. Ishigaki (1), W. Aoki (2) ((1) Tohoku University

arxiv:0912.0329 v1 · 2009-12-02 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q7YO5MLXPO6PHGCBHADOJRNLY7}

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	2026-05-18T02:10:34.764839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87f0eeb1777bbcf398413806e4c5abc7d20cc2e9d1793236df99d33cf5906aeb

Aliases

arxiv: 0912.0329 · arxiv_version: 0912.0329v1 · doi: 10.48550/arxiv.0912.0329 · pith_short_12: Q7YO5MLXPO6P · pith_short_16: Q7YO5MLXPO6PHGCB · pith_short_8: Q7YO5MLX

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/Q7YO5MLXPO6PHGCBHADOJRNLY7 \
  | 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: 87f0eeb1777bbcf398413806e4c5abc7d20cc2e9d1793236df99d33cf5906aeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c253f041f4b23f69322db70a6b547b7be7a9532359041bf5dd236af8c222d1d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-12-02T03:17:19Z",
    "title_canon_sha256": "8e7dde238167e67d6058540c7f20d818f64cd7b6407da28aedf7d9fa222f70bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0329",
    "kind": "arxiv",
    "version": 1
  }
}