Pith Number

pith:J42MBFDS

pith:2008:J42MBFDSWIQPSJ25JIHJ4LCX44

not attested not anchored not stored refs pending

The CaT strength in Seyfert nuclei revisited: analyzing young stars and non-stellar light contributions to the spectra

A. Garcia-Rissmann, H. Schmitt, L. R. Vega, N. V. Asari, R. Cid Fernandes, R. M. Gonzalez Delgado, T. Storchi-Bergmann

arxiv:0809.3178 v1 · 2008-09-18 · 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{J42MBFDSWIQPSJ25JIHJ4LCX44}

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	2026-05-18T00:48:21.441099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f34c09472b220f9275d4a0e9e2c57e70877fd8a50804986d8639fb7efff1375

Aliases

arxiv: 0809.3178 · arxiv_version: 0809.3178v1 · doi: 10.48550/arxiv.0809.3178 · pith_short_12: J42MBFDSWIQP · pith_short_16: J42MBFDSWIQPSJ25 · pith_short_8: J42MBFDS

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/J42MBFDSWIQPSJ25JIHJ4LCX44 \
  | 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: 4f34c09472b220f9275d4a0e9e2c57e70877fd8a50804986d8639fb7efff1375

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f2e5de6b602432b31ebd2ce82b56a3718a30dfeecd496950e3432405a293679",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-18T15:10:06Z",
    "title_canon_sha256": "c781bb646ee04dddeff10ad5f6f4b562afc88f5884ec34e0b4198050d66881f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.3178",
    "kind": "arxiv",
    "version": 1
  }
}