Pith Number

pith:IDZGOLHP

pith:2005:IDZGOLHPOLO2MYMYRN3RQN7GRR

not attested not anchored not stored refs pending

A Survey of z>5.7 Quasars in the Sloan Digital Sky Survey IV: Discovery of Seven Additional Quasars

Aleksandar M. Diamond-Stanic, Atsuko Nitta, Dan Long, Donald P. Schneider, Eric H. N eilsen, Gillian R. Knapp, Gordon T. Richards, Howard J. Brewington, James E. Gunn, Jason E. Young, J. Brinkmann, J. C. Barentine, Jennifer L. D onley, Joseph F. Hennawi, Jr., J. Serena Kim, Jurek Krzesinski, Linhua Jiang, Marianne Vestergaard, Masataka F ukugita, Michael A. Strauss, Michael Harvanek, Neta A. Bahcall, Richard L. White, Robert H. Becker, Robert H. Lupton, S. J. Kleinman, Stephanie A. Snedden, W. N. Brandt, Wolfgang Voges, Xiaohui Fan

arxiv:astro-ph/0512080 v1 · 2005-12-04 · astro-ph

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IDZGOLHPOLO2MYMYRN3RQN7GRR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:47:43.309444Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40f2672cef72dda661988b771837e68c7d65f8d429de793c75eff78479b2a33c

Aliases

arxiv: astro-ph/0512080 · arxiv_version: astro-ph/0512080v1 · doi: 10.48550/arxiv.astro-ph/0512080 · pith_short_12: IDZGOLHPOLO2 · pith_short_16: IDZGOLHPOLO2MYMY · pith_short_8: IDZGOLHP

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/IDZGOLHPOLO2MYMYRN3RQN7GRR \
  | 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: 40f2672cef72dda661988b771837e68c7d65f8d429de793c75eff78479b2a33c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1beb1a02062f3d81fde214da04c76281788420f17a09dd8f958475edec153edd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-12-04T16:34:18Z",
    "title_canon_sha256": "dc25af8781e148b0aca77a4201fb3390c9b2b71791f163474f1088c3fca6ed2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0512080",
    "kind": "arxiv",
    "version": 1
  }
}