Pith Number

pith:GGTPCZK7

pith:1995:GGTPCZK7KC2WXRHYH2XVVNLNQ3

not attested not anchored not stored refs pending

Locally Optimally Emitting Clouds and the Origin of Quasar Emission Lines

Dima Verner (Univ. Ky), Gary Ferland, Jack Baldwin (CTIO), Kirk Korista

arxiv:astro-ph/9510080 v1 · 1995-10-16 · 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{GGTPCZK7KC2WXRHYH2XVVNLNQ3}

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	2026-05-18T04:23:00.469244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31a6f1655f50b56bc4f83eaf5ab56d86e081a17ec05593c0eee8df6af64a923e

Aliases

arxiv: astro-ph/9510080 · arxiv_version: astro-ph/9510080v1 · doi: 10.48550/arxiv.astro-ph/9510080 · pith_short_12: GGTPCZK7KC2W · pith_short_16: GGTPCZK7KC2WXRHY · pith_short_8: GGTPCZK7

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/GGTPCZK7KC2WXRHYH2XVVNLNQ3 \
  | 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: 31a6f1655f50b56bc4f83eaf5ab56d86e081a17ec05593c0eee8df6af64a923e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "125c6cec43f485686a510d1a7e1e680aafd88eddf5a58641893fe8510208be4d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-10-16T17:36:36Z",
    "title_canon_sha256": "4567a657b9b79dcc0520643dd1c7823e078b622ba8e21f1df8ac3153335336c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9510080",
    "kind": "arxiv",
    "version": 1
  }
}