Pith Number

pith:HVGI4B2E

pith:1998:HVGI4B2EJVJLEUWN7WJXOMAIQ4

not attested not anchored not stored refs pending

A Geometrical Relationship between Broad-Line Clouds and an Accretion Disk around Active Galactic Nuclei

S. Nishiura, T. Murayama, Y. Taniguchi

arxiv:astro-ph/9803078 v1 · 1998-03-07 · 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{HVGI4B2EJVJLEUWN7WJXOMAIQ4}

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	2026-05-18T01:40:14.325202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d4c8e07444d52b252cdfd937730088713e489b04b98319dbab157cb222e0029

Aliases

arxiv: astro-ph/9803078 · arxiv_version: astro-ph/9803078v1 · doi: 10.48550/arxiv.astro-ph/9803078 · pith_short_12: HVGI4B2EJVJL · pith_short_16: HVGI4B2EJVJLEUWN · pith_short_8: HVGI4B2E

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/HVGI4B2EJVJLEUWN7WJXOMAIQ4 \
  | 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: 3d4c8e07444d52b252cdfd937730088713e489b04b98319dbab157cb222e0029

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "272b9dd47ed7bbccb6bb15344ac5654bcda602576f5c3bfd3f8754b86ef81e3f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-03-07T16:16:22Z",
    "title_canon_sha256": "3bb271dc25fcffe0f4709e4803f704039ff3130dd89d1687834a68e6b033fea5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9803078",
    "kind": "arxiv",
    "version": 1
  }
}