Pith Number

pith:CDWOYYAS

pith:2010:CDWOYYASNGMMS47J2GHBBUPX46

not attested not anchored not stored refs pending

Discovery of Compton-thick quasars in the Sloan Digital Sky Survey

2), C. Vignali (1, D.M. Alexander (3), Durham University, F. Pozzi (1) ((1) Dipartimento di Astronomia, Italy; (2) INAF - Osservatorio Astronomico di Bologna, Italy; (3) Department of Physics, R. Gilli (2), UK), Universita` degli Studi di Bologna

arxiv:1001.2005 v1 · 2010-01-12 · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CDWOYYASNGMMS47J2GHBBUPX46}

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	2026-05-18T02:09:55.330620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10ecec60126998c973e9d18e10d1f7e789d536933289713a9304a733a6fefa67

Aliases

arxiv: 1001.2005 · arxiv_version: 1001.2005v1 · doi: 10.48550/arxiv.1001.2005 · pith_short_12: CDWOYYASNGMM · pith_short_16: CDWOYYASNGMMS47J · pith_short_8: CDWOYYAS

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/CDWOYYASNGMMS47J2GHBBUPX46 \
  | 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: 10ecec60126998c973e9d18e10d1f7e789d536933289713a9304a733a6fefa67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a899eace0ef6f1036d91ca829bc069da16edea99eee2c6f21a72ba9699ca65e3",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-01-12T21:06:12Z",
    "title_canon_sha256": "c9f4d84cd8c99dac201bed5230f82c3e61c1b29408bdb9e37b3a21d008694320"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.2005",
    "kind": "arxiv",
    "version": 1
  }
}