Pith Number

pith:5VOTCEQT

pith:2001:5VOTCEQTJAVBHFDGXYX736IY7W

not attested not anchored not stored refs pending

Seyfert-Type Dependences of Narrow Emission-Line Ratios and Physical Properties of High-Ionization Nuclear Emission-Line Regions in Seyfert Galaxies

Takashi Murayama, Tohru Nagao, Yoshiaki Taniguchi (Tohoku Univ. Japan)

arxiv:astro-ph/0107025 v1 · 2001-07-02 · 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{5VOTCEQTJAVBHFDGXYX736IY7W}

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	2026-05-18T01:40:44.368162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed5d311213482a139466be2ffdf918fd8d918135d9135af69e0213335a758752

Aliases

arxiv: astro-ph/0107025 · arxiv_version: astro-ph/0107025v1 · doi: 10.48550/arxiv.astro-ph/0107025 · pith_short_12: 5VOTCEQTJAVB · pith_short_16: 5VOTCEQTJAVBHFDG · pith_short_8: 5VOTCEQT

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/5VOTCEQTJAVBHFDGXYX736IY7W \
  | 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: ed5d311213482a139466be2ffdf918fd8d918135d9135af69e0213335a758752

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fce2978fcedaf3160731a18e37bc38e799cc60408858f821855df5569bcac4b4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-07-02T15:16:01Z",
    "title_canon_sha256": "8884137471a13c518a9ab58b9cc4f39a2409551099f7612758067471f5ff54a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0107025",
    "kind": "arxiv",
    "version": 1
  }
}