Pith Number

pith:QOI3ABSS

pith:2018:QOI3ABSSRSLURCJ2RCNSWPLNSA

not attested not anchored not stored refs pending

No evidence for an Eddington-ratio dependence of X-ray weakness in BALQSOs

Bin Luo, Cristian Vignali, Fabio Vito, Ohad Shemmer, Roberto Gilli, William Nielsen Brandt

arxiv:1807.03868 v1 · 2018-07-10 · 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{QOI3ABSSRSLURCJ2RCNSWPLNSA}

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	2026-05-18T00:09:58.243971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8391b006528c9748893a889b2b3d6d9028befeb8927d8fae7a0d8d7be27e5e34

Aliases

arxiv: 1807.03868 · arxiv_version: 1807.03868v1 · doi: 10.48550/arxiv.1807.03868 · pith_short_12: QOI3ABSSRSLU · pith_short_16: QOI3ABSSRSLURCJ2 · pith_short_8: QOI3ABSS

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/QOI3ABSSRSLURCJ2RCNSWPLNSA \
  | 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: 8391b006528c9748893a889b2b3d6d9028befeb8927d8fae7a0d8d7be27e5e34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60495e005497bfd69fffd40d27fb9ebfd7eb8acac04a90b27447444e9fa44cc5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-10T21:25:11Z",
    "title_canon_sha256": "a0c24c82476fe719ba74c94a8d6ee20327f57b122fd68e987eeed6dcc8ace562"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03868",
    "kind": "arxiv",
    "version": 1
  }
}