Pith Number

pith:5PJ4FEMP

pith:2009:5PJ4FEMP5LHKKCNQOUZRRUC3FX

not attested not anchored not stored refs pending

The anatomy of the NGC 5044 group -- II. Stellar populations and star-formation histories

Duncan A. Forbes, Jesper Rasmussen, J. Trevor Mendel, Robert N. Proctor, Sarah Brough

arxiv:0903.1092 v1 · 2009-03-05 · 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{5PJ4FEMP5LHKKCNQOUZRRUC3FX}

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	2026-05-18T02:14:37.015087Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebd3c2918feacea509b0753318d05b2de6e8cf0fbf5f63093bfed19121719c27

Aliases

arxiv: 0903.1092 · arxiv_version: 0903.1092v1 · doi: 10.48550/arxiv.0903.1092 · pith_short_12: 5PJ4FEMP5LHK · pith_short_16: 5PJ4FEMP5LHKKCNQ · pith_short_8: 5PJ4FEMP

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/5PJ4FEMP5LHKKCNQOUZRRUC3FX \
  | 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: ebd3c2918feacea509b0753318d05b2de6e8cf0fbf5f63093bfed19121719c27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6422c25c45833bc49d8496a0c59a4da8040c2711046b8a1704937e8b6e1d0538",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-03-05T20:10:29Z",
    "title_canon_sha256": "6294a8a345ab3a5a142f58d5f237a3b2d60c559f360cec8fa71181d93168e04e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.1092",
    "kind": "arxiv",
    "version": 1
  }
}