Pith Number

pith:OBY7NEPQ

pith:2008:OBY7NEPQ3K5FFM2XIJHJF26O5Y

not attested not anchored not stored refs pending

Hard X-Ray Spectrum from West Lobe of Radio Galaxy Fornax A Observed with Suzaku

Hiromi Seta, Keiko Matsuta, Makoto S. Tashiro, Naoki Isobe, Yuichi Yaji

arxiv:0809.2448 v2 · 2008-09-15 · 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{OBY7NEPQ3K5FFM2XIJHJF26O5Y}

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	2026-05-18T02:15:34.637455Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7071f691f0daba52b357424e92ebceee271bea2a951a241238dc46e66e2916b7

Aliases

arxiv: 0809.2448 · arxiv_version: 0809.2448v2 · doi: 10.48550/arxiv.0809.2448 · pith_short_12: OBY7NEPQ3K5F · pith_short_16: OBY7NEPQ3K5FFM2X · pith_short_8: OBY7NEPQ

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/OBY7NEPQ3K5FFM2XIJHJF26O5Y \
  | 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: 7071f691f0daba52b357424e92ebceee271bea2a951a241238dc46e66e2916b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "643535c31d478e5571b1d263c4c32b98be577c9fca4f4fe05a03f859016d0f60",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-15T07:01:05Z",
    "title_canon_sha256": "e41dabe04581ceedbe33e46db3fa5dfe84092ce85449810ca5dda90e67fe6d56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2448",
    "kind": "arxiv",
    "version": 2
  }
}