Pith Number

pith:IYEJEBOG

pith:1999:IYEJEBOGT3LFOV6MOH442ZJI2X

not attested not anchored not stored refs pending

WFPC2 Observations of Compact Star Cluster Nuclei in Low Luminosity Spiral Galaxies

Alan M. Watson, Christopher J. Burrows, David Crisp, Gilda E. Ballester, III, James A. Westphal, Jeremy R. Mould, J. Jeff Hester, John E. Krist, John G. Hoessel, John S. Gallagher, John T. Clarke, John T. Trauger, Jon A. Holtzman, Karl R. Stapelfeldt, Lynn D. Matthews (NRAO), Paul A. Scowen, Richard E. Griffiths, Robin W. Evans

arxiv:astro-ph/9904205 v1 · 1999-04-15 · 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{IYEJEBOGT3LFOV6MOH442ZJI2X}

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	2026-05-18T03:47:42.480746Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46089205c69ed65757cc71f9cd6528d5fa5efc4b58316efb79eeb1488c3a7402

Aliases

arxiv: astro-ph/9904205 · arxiv_version: astro-ph/9904205v1 · doi: 10.48550/arxiv.astro-ph/9904205 · pith_short_12: IYEJEBOGT3LF · pith_short_16: IYEJEBOGT3LFOV6M · pith_short_8: IYEJEBOG

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/IYEJEBOGT3LFOV6MOH442ZJI2X \
  | 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: 46089205c69ed65757cc71f9cd6528d5fa5efc4b58316efb79eeb1488c3a7402

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66d2cf666cf892248eb4da52eb27ba994a5accca0b33d9678a861ecc9b2404f5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-04-15T22:41:16Z",
    "title_canon_sha256": "80e192a709d0de055afe50f99c46adced0a52ed94fc6e49db948d90967b94919"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9904205",
    "kind": "arxiv",
    "version": 1
  }
}