Pith Number

pith:AWFDK3MV

pith:2009:AWFDK3MVBNWN4V6WCILWY2ABOF

not attested not anchored not stored refs pending

Four Highly Luminous Massive Star Forming Regions in the Norma Spiral Arm II. Deep NIR imaging

A. Escala, D. Mardones, G. Garay, L. Bronfman, L. Chavarria, S. Lizano

arxiv:0911.4888 v1 · 2009-11-25 · astro-ph.SR · 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{AWFDK3MVBNWN4V6WCILWY2ABOF}

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	2026-05-18T02:34:03.562525Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

058a356d950b6cde57d612176c680171468abfdac19dd0358084ff114071d55d

Aliases

arxiv: 0911.4888 · arxiv_version: 0911.4888v1 · doi: 10.48550/arxiv.0911.4888 · pith_short_12: AWFDK3MVBNWN · pith_short_16: AWFDK3MVBNWN4V6W · pith_short_8: AWFDK3MV

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/AWFDK3MVBNWN4V6WCILWY2ABOF \
  | 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: 058a356d950b6cde57d612176c680171468abfdac19dd0358084ff114071d55d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c761f963292abb42e4b64134c82b98dc61161eb98fe527b3f3c9ad940f58c9e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-11-25T15:39:43Z",
    "title_canon_sha256": "42e38e0699cd2b917315b4273ccfe4917571d798ce21767a727613bf8d6391a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.4888",
    "kind": "arxiv",
    "version": 1
  }
}