Pith Number

pith:V2DY2BNC

pith:2003:V2DY2BNCUKOKO4IUZWFNFRDILH

not attested not anchored not stored refs pending

A Large, Uniform Sample of X-ray Emitting AGN: Selection Approach and an Initial Catalog from the ROSAT All-Sky and Sloan Digital Sky Surveys

Brian Yanny, Bruce Margon, Daniel E. Vanden Berk, David H. Weinberg, Donald G. York, Donald P. Schneider, Gordon T. Richards, Gregory Stinson, Heidi Jo Newberg, James Annis, J. Brinkmann, Jeffrey A. Munn, Joachim Tr\"umper, L. Homer, Marcel A. Ag\"ueros, Masataka Fukugita, Matthew J. Collinge, Michael A. Strauss, Michael W. Richmond, Neta A. Bahcall, Patrick B. Hall, Percy Gomez, Robert C. Nichol, Scott F. Anderson, Thomas Boller, Wolfgang Voges, Xiaohui Fan, Zeljko Ivezi\'c

arxiv:astro-ph/0305093 v2 · 2003-05-07 · 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{V2DY2BNCUKOKO4IUZWFNFRDILH}

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	2026-07-04T15:22:59.597393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae878d05a2a29ca77114cd8ad2c46859d1f9e8e89c22ff413d67fed21a7b74c6

Aliases

arxiv: astro-ph/0305093 · arxiv_version: astro-ph/0305093v2 · doi: 10.48550/arxiv.astro-ph/0305093 · pith_short_12: V2DY2BNCUKOK · pith_short_16: V2DY2BNCUKOKO4IU · pith_short_8: V2DY2BNC

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/V2DY2BNCUKOKO4IUZWFNFRDILH \
  | 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: ae878d05a2a29ca77114cd8ad2c46859d1f9e8e89c22ff413d67fed21a7b74c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a4495eb0cdb077374c8ad1e540e36079f9c5b8a8be1e0835d2e1bc2bf485ad1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-05-07T16:51:09Z",
    "title_canon_sha256": "6d3f477047c7a4581f340d5ba356f636960a1f2a23421ae37f2dac0938d90445"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0305093",
    "kind": "arxiv",
    "version": 2
  }
}