Pith Number

pith:ZPDPLQAN

pith:2004:ZPDPLQANNHBMZ4J4R62NIUXALV

not attested not anchored not stored refs pending

Absorption Line Study of Halo Gas in NGC 3067 Toward the Background Quasar 3C 232

(2) NAIC, (3) Nrao, (4) Univ. of Chicago), Arecibo, Brian A. Keeney (1), Chris L. Carilli (3), Emmanuel Momjian (2), Jason Tumlinson (4) ((1) CASA, John T. Stocke (1), Univ. of Colorado

arxiv:astro-ph/0409448 v1 · 2004-09-17 · 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{ZPDPLQANNHBMZ4J4R62NIUXALV}

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

Tracing Cold Gas in Absorption Across Cosmic Time with the SKA

Receipt and verification

First computed	2026-07-04T16:44:43.128361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbc6f5c00d69c2ccf13c8fb4d452e05d7a9828bcac604886c24ee38255d45adb

Aliases

arxiv: astro-ph/0409448 · arxiv_version: astro-ph/0409448v1 · doi: 10.48550/arxiv.astro-ph/0409448 · pith_short_12: ZPDPLQANNHBM · pith_short_16: ZPDPLQANNHBMZ4J4 · pith_short_8: ZPDPLQAN

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/ZPDPLQANNHBMZ4J4R62NIUXALV \
  | 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: cbc6f5c00d69c2ccf13c8fb4d452e05d7a9828bcac604886c24ee38255d45adb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6c36ea0fbf723124beb9897435983124ddd5f1fd27bc386c51c5108664de3f0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-09-17T22:04:59Z",
    "title_canon_sha256": "fc00884763abf3d16e71ef2510eafbabf51bbcdc18bd2844d5b1b2a313f51a81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0409448",
    "kind": "arxiv",
    "version": 1
  }
}