Pith Number

pith:GWNOCNKC

pith:1999:GWNOCNKCINXNVAFS2XULMSER6N

not attested not anchored not stored refs pending

E and S0 galaxies in the central part of the Coma cluster: Ages, metal abundances and dark matter

Inger Jorgensen (Gemini Observatory)

arxiv:astro-ph/9902250 v1 · 1999-02-18 · 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{GWNOCNKCINXNVAFS2XULMSER6N}

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	2026-05-18T01:07:36.597350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

359ae13542436eda80b2d5e8b64891f36d981924f519d7465a5b732351ff739d

Aliases

arxiv: astro-ph/9902250 · arxiv_version: astro-ph/9902250v1 · doi: 10.48550/arxiv.astro-ph/9902250 · pith_short_12: GWNOCNKCINXN · pith_short_16: GWNOCNKCINXNVAFS · pith_short_8: GWNOCNKC

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/GWNOCNKCINXNVAFS2XULMSER6N \
  | 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: 359ae13542436eda80b2d5e8b64891f36d981924f519d7465a5b732351ff739d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1aa322327239fdcb5ae32eb9e7216a0f336007abf2f9ffe661670c926cb2759",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-02-18T02:13:48Z",
    "title_canon_sha256": "c7ab08c4bcec00c3186d5affcdf5078b6a936ae670cde2d53fe2b804655a3093"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9902250",
    "kind": "arxiv",
    "version": 1
  }
}