Pith Number

pith:ZOE7UVJZ

pith:1998:ZOE7UVJZTCIZGNORHLRHJM2CWA

not attested not anchored not stored refs pending

New Constraints on the Luminosity Evolution of Spheroidal Galaxies in Distant Clusters

A. Aragon-Salamanca, A. Dressler, A. J. Barger, A. Oemler, B. M. Poggianti, I. Smail, R. M. Sharples, R. S. Ellis, W. J. Couch

arxiv:astro-ph/9801112 v1 · 1998-01-14 · 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{ZOE7UVJZTCIZGNORHLRHJM2CWA}

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	2026-07-04T16:06:04.757559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb89fa553998919335d13ae274b342b00185d48323c0cf397ac39cf600e4c0bc

Aliases

arxiv: astro-ph/9801112 · arxiv_version: astro-ph/9801112v1 · doi: 10.48550/arxiv.astro-ph/9801112 · pith_short_12: ZOE7UVJZTCIZ · pith_short_16: ZOE7UVJZTCIZGNOR · pith_short_8: ZOE7UVJZ

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/ZOE7UVJZTCIZGNORHLRHJM2CWA \
  | 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: cb89fa553998919335d13ae274b342b00185d48323c0cf397ac39cf600e4c0bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffe6ab097f5702a948bcd1378c5384f0998495d2c9f42dc44810eb99d8a9b191",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-01-14T01:20:13Z",
    "title_canon_sha256": "32dde8aed013a4cfce346722d52a343e47021ec44bffba8cb454133e5509ba26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9801112",
    "kind": "arxiv",
    "version": 1
  }
}