Pith Number

pith:QJV35CYD

pith:2003:QJV35CYD4UMTLKHLQS3RBFPOCI

not attested not anchored not stored refs pending

Continuum and Emission-Line Properties of Broad Absorption Line Quasars

Daniel E. Vanden Berk, Donald G. York, Donald P. Schneider, Gordon T. Richards, G.R. Knapp, J. Brinkmann, Patrick B. Hall, Timothy A. Reichard, Xiaohui Fan

arxiv:astro-ph/0308508 v1 · 2003-08-28 · 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{QJV35CYD4UMTLKHLQS3RBFPOCI}

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	2026-07-04T15:17:22.166380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

826bbe8b03e51935a8eb84b71095ee1221b3c018f5d92ae80c39a2478ea8475b

Aliases

arxiv: astro-ph/0308508 · arxiv_version: astro-ph/0308508v1 · doi: 10.48550/arxiv.astro-ph/0308508 · pith_short_12: QJV35CYD4UMT · pith_short_16: QJV35CYD4UMTLKHL · pith_short_8: QJV35CYD

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/QJV35CYD4UMTLKHLQS3RBFPOCI \
  | 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: 826bbe8b03e51935a8eb84b71095ee1221b3c018f5d92ae80c39a2478ea8475b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "996ea7d7792251367019c4e8393000aa038989651ce5bce812683ef4c5bf3cde",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-08-28T13:42:05Z",
    "title_canon_sha256": "e1f743ea4f3f602f83b3795a67d3d47553b17dada4f0be2e625b8b7daa6a5dfb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0308508",
    "kind": "arxiv",
    "version": 1
  }
}