Pith Number

pith:VONO6LIZ

pith:2002:VONO6LIZL2SO3J57YPTTLFXBSP

not attested not anchored not stored refs pending

Average Quasar Spectra in the Context of Eigenvector 1

D. Dultzin-Hacyan (Northern Quasar Alliance), J. W. Sulentic, M. Calvani, P. Marziani, R. Bachev, R. Zamanov

arxiv:astro-ph/0201362 v1 · 2002-01-22 · 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{VONO6LIZL2SO3J57YPTTLFXBSP}

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

2 papers in Pith

The metallicities of little red dot host galaxies: LRDs are metal poor, but not pristine

Quenching of X-ray emission in little red dots by both Compton-thick gas and high accretion rates

Receipt and verification

First computed	2026-07-04T16:29:17.836725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab9aef2d195ea4eda7bfc3e73596e193c89214180098ae039241d440de7c45c8

Aliases

arxiv: astro-ph/0201362 · arxiv_version: astro-ph/0201362v1 · doi: 10.48550/arxiv.astro-ph/0201362 · pith_short_12: VONO6LIZL2SO · pith_short_16: VONO6LIZL2SO3J57 · pith_short_8: VONO6LIZ

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/VONO6LIZL2SO3J57YPTTLFXBSP \
  | 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: ab9aef2d195ea4eda7bfc3e73596e193c89214180098ae039241d440de7c45c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ed279820520a392afecf736cca252e0565d4a08718bb494b4a9e0717538cf68",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-01-22T10:21:25Z",
    "title_canon_sha256": "afcfdc25b4c039b077f87811ea6592e8c541face5f83d08836aedbb7eaeec575"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0201362",
    "kind": "arxiv",
    "version": 1
  }
}