Pith Number

pith:H3INT5JD

pith:2000:H3INT5JDI3RC3HH4KKSWPBB3GK

not attested not anchored not stored refs pending

The Broad-Line and Narrow-Line Regions of the LINER NGC 4579

A.J. Barth, A.V. Filippenko, H.-W. Rix, L.C. Ho, W.L.W. Sargent

arxiv:astro-ph/0008273 v1 · 2000-08-17 · 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{H3INT5JDI3RC3HH4KKSWPBB3GK}

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	2026-07-04T16:17:03.287040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ed0d9f52346e22d9cfc52a567843b32b4ba48256cead39fdb4c3e357415888e

Aliases

arxiv: astro-ph/0008273 · arxiv_version: astro-ph/0008273v1 · doi: 10.48550/arxiv.astro-ph/0008273 · pith_short_12: H3INT5JDI3RC · pith_short_16: H3INT5JDI3RC3HH4 · pith_short_8: H3INT5JD

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/H3INT5JDI3RC3HH4KKSWPBB3GK \
  | 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: 3ed0d9f52346e22d9cfc52a567843b32b4ba48256cead39fdb4c3e357415888e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6dbbff6786b31f33522b0bbba420e5cb4c3fff513ae314107884dd930330c725",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-08-17T15:37:26Z",
    "title_canon_sha256": "faedb6f5a4889fd7b21597000134eaed136de5fc3a17ef11cbcf4d443eb17a48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0008273",
    "kind": "arxiv",
    "version": 1
  }
}