Pith Number

pith:4DAYPPOF

pith:2009:4DAYPPOFLWX2YV5JJV2IU2RG62

not attested not anchored not stored refs pending

X-ray Isophotes in a Rapidly Rotating Elliptical Galaxy: Evidence of Inflowing Gas

2), (2) Dipartimento di Astronomia, (3) Department of Physics, Astronomy, Astrophysics, David A. Buote (3) ((1) Department of Astronomy, Fabrizio Brighenti (1, Philip J. Humphrey (3), Santa Cruz, Universit\`a di Bologna, University of California, University of California at Irvine), William G. Mathews (1)

arxiv:0910.0883 v1 · 2009-10-06 · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4DAYPPOFLWX2YV5JJV2IU2RG62}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:34:20.094561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0c187bdc55dafac57a94d748a6a26f68673e93ab7b7a03da45dd5ae67c5a7f5

Aliases

arxiv: 0910.0883 · arxiv_version: 0910.0883v1 · doi: 10.48550/arxiv.0910.0883 · pith_short_12: 4DAYPPOFLWX2 · pith_short_16: 4DAYPPOFLWX2YV5J · pith_short_8: 4DAYPPOF

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/4DAYPPOFLWX2YV5JJV2IU2RG62 \
  | 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: e0c187bdc55dafac57a94d748a6a26f68673e93ab7b7a03da45dd5ae67c5a7f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f2e92ed92d3f7319b2b70680d6e3835c96a6d5a6712a33bbbccfc9e130fe289",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-06T05:10:12Z",
    "title_canon_sha256": "f905d2da59468ab151cec3ae313571fbf9c40fab4335494626d4ae00f46d9b95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.0883",
    "kind": "arxiv",
    "version": 1
  }
}