Pith Number

pith:S27C6EDD

pith:2015:S27C6EDDOSXLDRAPUVSPUD6SY5

not attested not anchored not stored refs pending

The case for cases B and C: intrinsic hydrogen line ratios of the broad-line region of active galactic nuclei, reddenings, and accretion disc sizes

C. Martin Gaskell

arxiv:1512.09291 v3 · 2015-12-31 · 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{S27C6EDDOSXLDRAPUVSPUD6SY5}

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

OzSSy1: The Australian Southern Seyfert-1 Spectroscopic Atlas and Catalogue at z < 0.1

Receipt and verification

First computed	2026-05-18T00:50:22.777506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96be2f106374aeb1c40fa564fa0fd2c75419e96bd6b9693699347e3dadefe3ce

Aliases

arxiv: 1512.09291 · arxiv_version: 1512.09291v3 · doi: 10.48550/arxiv.1512.09291 · pith_short_12: S27C6EDDOSXL · pith_short_16: S27C6EDDOSXLDRAP · pith_short_8: S27C6EDD

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/S27C6EDDOSXLDRAPUVSPUD6SY5 \
  | 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: 96be2f106374aeb1c40fa564fa0fd2c75419e96bd6b9693699347e3dadefe3ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95c7b520d42e6bf3115b683443c5c59c22387e11abb550cb8dca75192dd6170c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-12-31T14:12:00Z",
    "title_canon_sha256": "30953a51b73b5b5f87134d4c2648393506bd5c9d68e71c840a39c8ab40dc95dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.09291",
    "kind": "arxiv",
    "version": 3
  }
}