Pith Number

pith:QVOSJAOJ

pith:2009:QVOSJAOJWO5Y3VN4BVAT6ZBEUT

not attested not anchored not stored refs pending

Metal-Enriched Plasma in Protogalactic Halos: A Survey of N V Absorption in High-z Damped & Sub-Damped Lyman-alpha Systems

(2) UC-Santa Cruz, (3) IAP, (4) UC-San Diego, (5) IUCAA, Andrew J. Fox (1), Arthur M. Wolfe (4), C\'edric Ledoux (1), India), J. Xavier Prochaska (2), Paris, Patrick Petitjean (3), Raghunathan Srianand (5)((1) ESO-Chile

arxiv:0905.1042 v2 · 2009-05-07 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QVOSJAOJWO5Y3VN4BVAT6ZBEUT}

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	2026-05-18T02:13:46.645872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

855d2481c9b3bb8dd5bc0d413f6424a4c83ff4a1a7c8caa8b4b5cb8d36685a32

Aliases

arxiv: 0905.1042 · arxiv_version: 0905.1042v2 · doi: 10.48550/arxiv.0905.1042 · pith_short_12: QVOSJAOJWO5Y · pith_short_16: QVOSJAOJWO5Y3VN4 · pith_short_8: QVOSJAOJ

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/QVOSJAOJWO5Y3VN4BVAT6ZBEUT \
  | 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: 855d2481c9b3bb8dd5bc0d413f6424a4c83ff4a1a7c8caa8b4b5cb8d36685a32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a54b9f2e19cad570a9eb36f6f199c27c93192d04553a487af84756ab6a195a0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-05-07T15:06:28Z",
    "title_canon_sha256": "75b428cb55c8381d9f078033cf3460006b5e1bda3ac026f1f2c374e499be56a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1042",
    "kind": "arxiv",
    "version": 2
  }
}