Pith Number

pith:WJXI3BN2

pith:2002:WJXI3BN2O7WALJBUJYY4BPHODZ

not attested not anchored not stored refs pending

X-ray emission from radio-quiet quasars in the SDSS Early Data Release. The alpha_ox dependence upon UV luminosity

Astrophysics, C. Vignali, D.P. Schneider (Department of Astronomy, The Pennsylvania State University), W.N. Brandt

arxiv:astro-ph/0211125 v1 · 2002-11-06 · 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{WJXI3BN2O7WALJBUJYY4BPHODZ}

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	2026-05-18T04:23:01.090052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b26e8d85ba77ec05a4344e31c0bcee1e79a04b03462f7aab5ba49c82d23621f6

Aliases

arxiv: astro-ph/0211125 · arxiv_version: astro-ph/0211125v1 · doi: 10.48550/arxiv.astro-ph/0211125 · pith_short_12: WJXI3BN2O7WA · pith_short_16: WJXI3BN2O7WALJBU · pith_short_8: WJXI3BN2

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/WJXI3BN2O7WALJBUJYY4BPHODZ \
  | 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: b26e8d85ba77ec05a4344e31c0bcee1e79a04b03462f7aab5ba49c82d23621f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51652d2d869c91e655dd232e5c59dc66019e8bf4ac6be60f247d2394c87570bc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-11-06T21:28:21Z",
    "title_canon_sha256": "539654685acd48acb394338af4784a43329f1ca2074d9d3e7a5bc310be3c289d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0211125",
    "kind": "arxiv",
    "version": 1
  }
}