Pith Number

pith:FAWH7KIV

pith:2001:FAWH7KIVVNDMP3PQFVIYS24VLM

not attested not anchored not stored refs pending

Black Hole Mass and Eddington Ratio as Drivers for the Observable Properties of Radio-Loud and Radio-Quiet QSOs

Todd A. Boroson (NOAO)

arxiv:astro-ph/0109317 v1 · 2001-09-19 · 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{FAWH7KIVVNDMP3PQFVIYS24VLM}

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

Classifying Radio-Loud and Radio-Quiet Quasars With Novel PCA Based Regression Classifier

Receipt and verification

First computed	2026-07-04T15:42:18.732707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

282c7fa915ab46c7edf02d51896b955b3f5a37e4828ae581f7edd5004281df71

Aliases

arxiv: astro-ph/0109317 · arxiv_version: astro-ph/0109317v1 · doi: 10.48550/arxiv.astro-ph/0109317 · pith_short_12: FAWH7KIVVNDM · pith_short_16: FAWH7KIVVNDMP3PQ · pith_short_8: FAWH7KIV

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/FAWH7KIVVNDMP3PQFVIYS24VLM \
  | 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: 282c7fa915ab46c7edf02d51896b955b3f5a37e4828ae581f7edd5004281df71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68b873681a730205d37267e3b02f8532b3b945193acc127815f8e350e0a7296a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-09-19T17:36:23Z",
    "title_canon_sha256": "db918a076d0b016fdd37da6f053e87672bd48a8dd8b59fa2199302bba5c4f48c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0109317",
    "kind": "arxiv",
    "version": 1
  }
}