Pith Number

pith:NJIGLOQK

pith:2000:NJIGLOQKGC6LCPBNMR6CAEEVRE

not attested not anchored not stored refs pending

A Young Stellar Cluster in the Nucleus of NGC 4449

G. Rudnick, H.-W. Rix, J. C. Shields, L. C. Ho, L. Mazzuca, R. P. van der Marel, T. Boeker

arxiv:astro-ph/0010542 v2 · 2000-10-26 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NJIGLOQKGC6LCPBNMR6CAEEVRE}

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	2026-07-04T16:17:28.452718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a5065ba0a30bcb13c2d647c201095892e1414f1cc9762d9d79d9dc762a4552c

Aliases

arxiv: astro-ph/0010542 · arxiv_version: astro-ph/0010542v2 · doi: 10.48550/arxiv.astro-ph/0010542 · pith_short_12: NJIGLOQKGC6L · pith_short_16: NJIGLOQKGC6LCPBN · pith_short_8: NJIGLOQK

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/NJIGLOQKGC6LCPBNMR6CAEEVRE \
  | 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: 6a5065ba0a30bcb13c2d647c201095892e1414f1cc9762d9d79d9dc762a4552c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67b88b93d6dfab4c0221959dc058ff70f56b6c480d8bae9743f398360173286d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-10-26T13:23:27Z",
    "title_canon_sha256": "579f8cd3b4f59038a53b599ef8531b8bd1693c6afbfcfb51c7ed843be30cec64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0010542",
    "kind": "arxiv",
    "version": 2
  }
}