Pith Number

pith:5XS7DMLV

pith:2007:5XS7DMLVOEQ5TCLSYBXXOEW4I2

not attested not anchored not stored refs pending

The Sloan Digital Sky Survey Quasar Catalog IV. Fifth Data Release

Alexander S. Szalay, Anirudda R. Thakar, Atsuko Nitta, Brian Yanny, Chris Stoughton, Daniel C. Long, Daniel E. Vanden Berk, David H. Saxe, David H. Weinberg, David W. Hogg, Donald G. York, Donald P. Schneider, Francisco J. Castander, Gordon T. Richards, G. R. Knapp, Howard Brewington, Istvan Csabai, James E. Gunn, J. Barentine, J. Brinkmann, Jeffrey R. Pier, Jian Wu, Jim Gray, Joshua A. Frieman, Jurek Krzesinski, Mark U. SubbaRao, Masataka Fukugita, Michael A. Strauss, Michael Harvanek, Michael R. Blanton, Neta A. Bahcall, Patrick B. Hall, Richard G. Kron, Robert H. Lupton, Robert J. Brunner, Scott F. Anderson, Sebastian Jester, S. J. Kleinman, Stephanie A. Snedden, Stephen M. Kent, W.N. Brandt, Xiaohui Fan, Yue Shen, Zeljko Ivezic

arxiv:0704.0806 v1 · 2007-04-05 · 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{5XS7DMLVOEQ5TCLSYBXXOEW4I2}

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	2026-07-04T15:24:53.687347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ede5f1b1757121d98972c06f7712dc46b1d51050eeca0770455e75dbea2e516f

Aliases

arxiv: 0704.0806 · arxiv_version: 0704.0806v1 · doi: 10.48550/arxiv.0704.0806 · pith_short_12: 5XS7DMLVOEQ5 · pith_short_16: 5XS7DMLVOEQ5TCLS · pith_short_8: 5XS7DMLV

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/5XS7DMLVOEQ5TCLSYBXXOEW4I2 \
  | 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: ede5f1b1757121d98972c06f7712dc46b1d51050eeca0770455e75dbea2e516f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f4ed9b5f45dbc7c3bf4e3fc28de1ef370b2e1c32a4ebb30cde7f8c0a44fed96",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-04-05T21:00:10Z",
    "title_canon_sha256": "f542ad0c1ed9a8c831e79ca45887e1f25a2ecf2ca9f4cc52d27a260b0492131d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.0806",
    "kind": "arxiv",
    "version": 1
  }
}