Pith Number

pith:TULD3PPX

pith:2011:TULD3PPXDZVMFQUT5LXJOE7ZHH

not attested not anchored not stored refs pending

Suzaku Studies of Wide-Band Spectral Variability of the Bright Type I Seyfert Galaxy Markarian 509

Hirofumi Noda, Kazuhiro Nakazawa, Kazuo Makishima, Shin'ya Yamada, Shunsuke Torii, Soki Sakurai

arxiv:1109.0457 v2 · 2011-09-02 · 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{TULD3PPXDZVMFQUT5LXJOE7ZHH}

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	2026-05-18T02:00:42.670938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d163dbdf71e6ac2c293eaee9713f939c8a8c77e45dd3f5354c5283c7df59fb9

Aliases

arxiv: 1109.0457 · arxiv_version: 1109.0457v2 · doi: 10.48550/arxiv.1109.0457 · pith_short_12: TULD3PPXDZVM · pith_short_16: TULD3PPXDZVMFQUT · pith_short_8: TULD3PPX

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/TULD3PPXDZVMFQUT5LXJOE7ZHH \
  | 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: 9d163dbdf71e6ac2c293eaee9713f939c8a8c77e45dd3f5354c5283c7df59fb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a8bab9619608138a048270808d785e761355593e31376948ae321db849f3223",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-02T14:40:57Z",
    "title_canon_sha256": "042e13743d60c3f1ffb369e1b0438d1cc42c5cb649bb071da9fd8b9a038ad510"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0457",
    "kind": "arxiv",
    "version": 2
  }
}