Pith Number

pith:QZGT7Y3J

pith:2000:QZGT7Y3JQLM776G3MMPWGWB3FW

not attested not anchored not stored refs pending

The Nuclear and Circum-nuclear Stellar Population in Seyfert 2 Galaxies: Implications for the Starburst-AGN Connection

C. Leitherer, R. M. Gonzalez Delgado, T. Heckman

arxiv:astro-ph/0008417 v1 · 2000-08-28 · 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{QZGT7Y3JQLM776G3MMPWGWB3FW}

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	2026-07-04T17:25:11.034177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

864d3fe36982d9fff8db631f63583b2d8a8c66fc7444520599a6cb4af437963e

Aliases

arxiv: astro-ph/0008417 · arxiv_version: astro-ph/0008417v1 · doi: 10.48550/arxiv.astro-ph/0008417 · pith_short_12: QZGT7Y3JQLM7 · pith_short_16: QZGT7Y3JQLM776G3 · pith_short_8: QZGT7Y3J

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/QZGT7Y3JQLM776G3MMPWGWB3FW \
  | 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: 864d3fe36982d9fff8db631f63583b2d8a8c66fc7444520599a6cb4af437963e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2051e763b36aba9da0d963bb300fe88f68cd8b7266832772fc08e4c98396fd3d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-08-28T06:36:17Z",
    "title_canon_sha256": "2d11c62b6e987ddc303a19267cee2603cf07c04fa9f742c456b9b155e8b03ad0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0008417",
    "kind": "arxiv",
    "version": 1
  }
}