Pith Number

pith:CXQFCB46

pith:2006:CXQFCB46Y2BNNATA2U23AUL6G3

not attested not anchored not stored refs pending

The UCSD Radio-Selected Quasar Survey for Damped Lyman alpha System

Arthur M. Wolfe, Dawn M. Gelino, Eric Gawiser, Jason X. Prochaska, J. Christopher Howk, Jeff Cooke, Limin Lu, Regina A. Jorgenson

arxiv:astro-ph/0604334 v1 · 2006-04-14 · 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{CXQFCB46Y2BNNATA2U23AUL6G3}

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	2026-07-04T15:19:42.206947Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15e051079ec682d68260d535b0517e36f9b8ef863bf1e6a168f2b8203c5baf22

Aliases

arxiv: astro-ph/0604334 · arxiv_version: astro-ph/0604334v1 · doi: 10.48550/arxiv.astro-ph/0604334 · pith_short_12: CXQFCB46Y2BN · pith_short_16: CXQFCB46Y2BNNATA · pith_short_8: CXQFCB46

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/CXQFCB46Y2BNNATA2U23AUL6G3 \
  | 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: 15e051079ec682d68260d535b0517e36f9b8ef863bf1e6a168f2b8203c5baf22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d967ff57e505f5d2d6a104025351ce5b9cba73beb540142c6fcaad64933d329",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-04-14T19:44:54Z",
    "title_canon_sha256": "f9d594ae57f1b178d84555237e71dfd5f8e22d96e3fe2e247ab3cb69ed24ebfb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0604334",
    "kind": "arxiv",
    "version": 1
  }
}