Pith Number

pith:AUR3ZGQL

pith:2022:AUR3ZGQLQCVQKL4UO2TT72G5BC

not attested not anchored not stored refs pending

The Obscured Fraction of Quasars at Cosmic Noon

Bovornpratch Vijarnwannaluk, Janek Pflugradt, Malte Schramm, Marcin Sawicki, Masayuki Akiyama, Stephen Gwyn, Yoshihiro Ueda, Yoshiki Matsuoka, Yoshiki Toba

arxiv:2209.07797 v2 · 2022-09-16 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AUR3ZGQLQCVQKL4UO2TT72G5BC}

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

X-ray luminosity function of Compton-thick AGN in the early Universe (z > 3). Robustness and biases of the CTK population

Receipt and verification

First computed	2026-07-05T05:26:49.576377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0523bc9a0b80ab052f9476a73fe8dd089b0fb10dfa51e02532189f6dcf25c710

Aliases

arxiv: 2209.07797 · arxiv_version: 2209.07797v2 · doi: 10.48550/arxiv.2209.07797 · pith_short_12: AUR3ZGQLQCVQ · pith_short_16: AUR3ZGQLQCVQKL4U · pith_short_8: AUR3ZGQL

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/AUR3ZGQLQCVQKL4UO2TT72G5BC \
  | 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: 0523bc9a0b80ab052f9476a73fe8dd089b0fb10dfa51e02532189f6dcf25c710

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6829110bb55323944bdd8053b1ff02ffceedd8449b7a18e1f1c47c048fa0119",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-09-16T08:53:35Z",
    "title_canon_sha256": "68f17217bf1d894af357392bae916499346ee5d97528f90eed34439141847e08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.07797",
    "kind": "arxiv",
    "version": 2
  }
}