Pith Number

pith:2SWG7UQI

pith:2005:2SWG7UQIA5V3QH3EFWJRMSZYT6

not attested not anchored not stored refs pending

The SDSS View of the Palomar-Green Bright Quasar Survey

10), (10) LANL), (2) Penn State, (3) Princeton, (4) KPNO, (5) Caltech, (6) York U, (7) Apache Point Obs., 8), (8) U Chicago, (9) U Wyoming, Brian Yanny (1) ((1) Fermilab, Chris Stoughton (1), Daniel E. Vanden Berk (2), Donald P. Schneider (2), Douglas L. Tucker (1), Gordon T. Richards (3), J. Allyn Smith (9, James E. Gunn (3), Jon Brinkmann (7), Maarten Schmidt (5), Michael A. Strauss (3), Patrick B. Hall (6), Richard F. Green (4), Sebastian Jester (1), Stephen M. Kent (1

arxiv:astro-ph/0506022 v1 · 2005-06-01 · 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{2SWG7UQIA5V3QH3EFWJRMSZYT6}

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	2026-07-04T15:26:30.872546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4ac6fd208076bb81f642d93164b389f9b9758add63bbe3d346bf79ed2bc5b00

Aliases

arxiv: astro-ph/0506022 · arxiv_version: astro-ph/0506022v1 · doi: 10.48550/arxiv.astro-ph/0506022 · pith_short_12: 2SWG7UQIA5V3 · pith_short_16: 2SWG7UQIA5V3QH3E · pith_short_8: 2SWG7UQI

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/2SWG7UQIA5V3QH3EFWJRMSZYT6 \
  | 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: d4ac6fd208076bb81f642d93164b389f9b9758add63bbe3d346bf79ed2bc5b00

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e70f9d2301e2456d9c2299277462cbdec55b4dcc9b51e9ef80fee73ab79b051",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-06-01T19:38:32Z",
    "title_canon_sha256": "7ac98af52b065ec11320205c629652e8b0d030d7379af05353bd1d45453c3d00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0506022",
    "kind": "arxiv",
    "version": 1
  }
}