Pith Number

pith:OV2474QG

pith:2009:OV2474QG72IQ457B6LIQNK4M76

not attested not anchored not stored refs pending

Analysis of the stellar population in the central area of the HII region Sh 2-284

Anlaug A. Djupvik, Antonio J. Delgado, Emilio J. Alfaro

arxiv:0911.2428 v1 · 2009-11-12 · 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{OV2474QG72IQ457B6LIQNK4M76}

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	2026-05-18T02:10:48.209800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7575cff206fe910e77e1f2d106ab8cff86a3f28c9358aabeb19638cf1a92762f

Aliases

arxiv: 0911.2428 · arxiv_version: 0911.2428v1 · doi: 10.48550/arxiv.0911.2428 · pith_short_12: OV2474QG72IQ · pith_short_16: OV2474QG72IQ457B · pith_short_8: OV2474QG

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/OV2474QG72IQ457B6LIQNK4M76 \
  | 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: 7575cff206fe910e77e1f2d106ab8cff86a3f28c9358aabeb19638cf1a92762f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "289f7e1e90121559e4af57bd49242e79441c89bf6707db3e9eae832467a8305d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-11-12T16:58:26Z",
    "title_canon_sha256": "46daac82b1a640c9daa631f3ce744c93d107303ea2cc2f3df10b3653cb4acb79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2428",
    "kind": "arxiv",
    "version": 1
  }
}