Pith Number

pith:VZWEOKE6

pith:1998:VZWEOKE6B44AQXOOREBAZNUCX5

not attested not anchored not stored refs pending

Evolution of Elliptical Galaxies in a Hierarchical Universe

Garching), Guinevere Kauffmann, (MPA, Paris), Stephane Charlot (IAP

arxiv:astro-ph/9810031 v1 · 1998-10-02 · 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{VZWEOKE6B44AQXOOREBAZNUCX5}

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	2026-07-04T14:16:04.605764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae6c47289e0f38085dce89020cb682bf72bd8c2cbb2d2761d69b74e2690d00e6

Aliases

arxiv: astro-ph/9810031 · arxiv_version: astro-ph/9810031v1 · doi: 10.48550/arxiv.astro-ph/9810031 · pith_short_12: VZWEOKE6B44A · pith_short_16: VZWEOKE6B44AQXOO · pith_short_8: VZWEOKE6

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/VZWEOKE6B44AQXOOREBAZNUCX5 \
  | 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: ae6c47289e0f38085dce89020cb682bf72bd8c2cbb2d2761d69b74e2690d00e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "532920a669a74db9216cd8bc9e1ed5e0ebcd51cda00a8ebd8777a240648388f2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-10-02T10:21:49Z",
    "title_canon_sha256": "78a893611fc69c36395a718f8e0ecf8a38970390895eced58a86601184fc9051"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9810031",
    "kind": "arxiv",
    "version": 1
  }
}