Pith Number

pith:ZFCXSW2S

pith:2005:ZFCXSW2SHII6QMRDOGIATLX2NI

not attested not anchored not stored refs pending

The 2dF-SDSS LRG and QSO Survey: The z<2.1 Quasar Luminosity Function from 5645 Quasars to g=21.85

A. Meiksin, A. Myers, A.S. Szalay, B.J. Boyle, C. Stoughton, D.E. Vanden Berk, D.G. York, D.P. Schneider, G.T. Richards, I.G. Roseboom, J. Bland-Hawthorn, J.E. Gunn, J. Loveday, K.A. Pimbblet, L. Miller, M.A. Strauss, M.J. Drinkwater, N. Ross, P.J. Outram, R.C. Nichol, R. De Propris, R.G. Sharp, S.F. Anderson, S. Jester, S.M. Croom, T. Shanks, X. Fan, Z. Ivezic

arxiv:astro-ph/0504300 v1 · 2005-04-13 · 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{ZFCXSW2SHII6QMRDOGIATLX2NI}

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	2026-05-18T04:27:04.291429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c945795b523a11e83223719009aefa6a072b66b50bcb156707f6f1492ba34e1a

Aliases

arxiv: astro-ph/0504300 · arxiv_version: astro-ph/0504300v1 · doi: 10.48550/arxiv.astro-ph/0504300 · pith_short_12: ZFCXSW2SHII6 · pith_short_16: ZFCXSW2SHII6QMRD · pith_short_8: ZFCXSW2S

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/ZFCXSW2SHII6QMRDOGIATLX2NI \
  | 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: c945795b523a11e83223719009aefa6a072b66b50bcb156707f6f1492ba34e1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff2f164071a63ca565fd06d7e6182581013abccf0b1dbb2311aeddfd115d4a3d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-04-13T17:01:38Z",
    "title_canon_sha256": "55477806d32f8c24e89b64112540b0bed88a471679fe038e5b9ac9c33acc4be4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0504300",
    "kind": "arxiv",
    "version": 1
  }
}