Pith Number

pith:B2ZN3PZN

pith:2009:B2ZN3PZNCMYQUKDBSUDYT3HXMP

not attested not anchored not stored refs pending

Searching for a Gravitational Heating Signature in Nearby Luminous Ellipticals

Jeffrey D. P. Kenney, Pieter G. van Dokkum, Tomer Tal

arxiv:0909.1332 v2 · 2009-09-07 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B2ZN3PZNCMYQUKDBSUDYT3HXMP}

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	2026-05-18T02:11:58.813480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0eb2ddbf2d13310a2861950789ecf763daf42af703bf5af73f75b561b837d516

Aliases

arxiv: 0909.1332 · arxiv_version: 0909.1332v2 · doi: 10.48550/arxiv.0909.1332 · pith_short_12: B2ZN3PZNCMYQ · pith_short_16: B2ZN3PZNCMYQUKDB · pith_short_8: B2ZN3PZN

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/B2ZN3PZNCMYQUKDBSUDYT3HXMP \
  | 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: 0eb2ddbf2d13310a2861950789ecf763daf42af703bf5af73f75b561b837d516

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1146dd3d591a5caff49cc11506986711662ef86fe57f9247c75139f60e715f4f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-07T20:34:22Z",
    "title_canon_sha256": "14d920f059f07bf4ebc07242f83d62d7d499aa924b54e765c7148a6f44fe47fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1332",
    "kind": "arxiv",
    "version": 2
  }
}