Pith Number

pith:PORZYTAA

pith:1997:PORZYTAABACO4IHU4ZRDKBKZ5Z

not attested not anchored not stored refs pending

A Search for "Dwarf" Seyfert Nuclei. IV. Nuclei with Broad H-alpha Emission

Alexei V. Filippenko, Chien Y. Peng, Luis C. Ho, Wallace L. W. Sargent

arxiv:astro-ph/9704099 v1 · 1997-04-11 · 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{PORZYTAABACO4IHU4ZRDKBKZ5Z}

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

Nuclear Activity and Host Galaxy Properties of Low-Luminosity AGN Identified from VLA Observations

Receipt and verification

First computed	2026-05-18T04:33:50.492435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ba39c4c000804ee20f4e662350559ee586edb8944e76d2e63773a53c4e93840

Aliases

arxiv: astro-ph/9704099 · arxiv_version: astro-ph/9704099v1 · doi: 10.48550/arxiv.astro-ph/9704099 · pith_short_12: PORZYTAABACO · pith_short_16: PORZYTAABACO4IHU · pith_short_8: PORZYTAA

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/PORZYTAABACO4IHU4ZRDKBKZ5Z \
  | 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: 7ba39c4c000804ee20f4e662350559ee586edb8944e76d2e63773a53c4e93840

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc52ad7fb80feb29ffb7e6d9df9cbec0996ca4e6d9d60b0fa54ce00b0f3dba4a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-04-11T15:36:36Z",
    "title_canon_sha256": "6ea370916bd7661aed0022cbf4cfb9895a9ac704c0c9499c630bbeccac9bbc7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9704099",
    "kind": "arxiv",
    "version": 1
  }
}