Pith Number

pith:PHI7AL3M

pith:2002:PHI7AL3M522Q3YPLDQJZ27D6XH

not attested not anchored not stored refs pending

Spectroscopic Properties of QSOs Selected from Ultraluminous Infrared Galaxy Samples

2), (2) Tianjin Normal University, (3) Univ. of Manchester, (4) Graduate School, Chinese Academy of Sciences, Chinese Academy of Sciences), H. Wu (1), Jodrell Bank Observatory, S. Mao (3), X.Y. Xia (1, X.Z. Zheng (1), Z.G. Deng (4) ((1) National Astronomical Observatories

arxiv:astro-ph/0203456 v1 · 2002-03-26 · 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{PHI7AL3M522Q3YPLDQJZ27D6XH}

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.

Cited by

1 paper in Pith

The WISSHFUL program: the highest redshift UFO discovered in a non-lensed QSO

Receipt and verification

First computed	2026-07-04T16:29:36.553063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79d1f02f6ceeb50de1eb1c139d7c7eb9cd342f899d131ed63b3e04a2811d7955

Aliases

arxiv: astro-ph/0203456 · arxiv_version: astro-ph/0203456v1 · doi: 10.48550/arxiv.astro-ph/0203456 · pith_short_12: PHI7AL3M522Q · pith_short_16: PHI7AL3M522Q3YPL · pith_short_8: PHI7AL3M

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/PHI7AL3M522Q3YPLDQJZ27D6XH \
  | 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: 79d1f02f6ceeb50de1eb1c139d7c7eb9cd342f899d131ed63b3e04a2811d7955

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2208782e201b56fcc9b5b9dbaff0dfb297ae9b9fa4eee1701c3e3c95fa31ab34",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-03-26T06:16:23Z",
    "title_canon_sha256": "0518ca7c0648cd07f10e2447cf6e8b9d3feef8f7292442c422b1d1e1a4be2b2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0203456",
    "kind": "arxiv",
    "version": 1
  }
}