Pith Number

pith:EFXUBPZT

pith:2003:EFXUBPZT4EJKGI7J5IXTIWNBH6

not attested not anchored not stored refs pending

Sensitive observations at 1.4 and 250 GHz of z > 5 QSOs

(2) National Radio Astronomy Observatory, (3) Max-Planck Institut fur Radioastronomie, (4) Steward Observatory, (5) Institut d'Astrophysique Spatiale, (6) Princeton University Observatory, (7)Institut d'Astrophysique de Paris, (8) Pennsylvania State University), A. Omont (7), A. O. Petric (1), C. L. Carilli (2), Donald P. Schneider (8) ((1) Columbia University, F. Bertoldi (3), Michael A. Strauss (6), P. Cox (5), Univ. of Arizona, Xiaohui Fan (4)

arxiv:astro-ph/0304097 v1 · 2003-04-04 · 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{EFXUBPZT4EJKGI7J5IXTIWNBH6}

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

When Jets Don't Quench: Near-Infrared H$_{2}$ in Star Forming Low-Excitation Radio Galaxies

Receipt and verification

First computed	2026-07-04T16:36:48.043225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

216f40bf33e112a323e9ea2f3459a13f997b80680eff459850256492bcd7e302

Aliases

arxiv: astro-ph/0304097 · arxiv_version: astro-ph/0304097v1 · doi: 10.48550/arxiv.astro-ph/0304097 · pith_short_12: EFXUBPZT4EJK · pith_short_16: EFXUBPZT4EJKGI7J · pith_short_8: EFXUBPZT

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/EFXUBPZT4EJKGI7J5IXTIWNBH6 \
  | 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: 216f40bf33e112a323e9ea2f3459a13f997b80680eff459850256492bcd7e302

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "883875e8a878a45063d4f8481423a30deb0be122ac6f681c4d31fcd6e5f3e2d7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-04-04T20:46:21Z",
    "title_canon_sha256": "4593240089efddb4cc599060b330fbf42db836da6cc4e7986f60a6869811396f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0304097",
    "kind": "arxiv",
    "version": 1
  }
}