Pith Number

pith:H34TWDKQ

pith:2013:H34TWDKQ5KYGPJ7JEJVMT4EAV6

not attested not anchored not stored refs pending

Are Boltzmann Plots of Hydrogen Balmer lines a tool for identifying a subclass of S1 AGN?

D. Ili\'c, F. Di Mille, G. La Mura, L. \v{C}. Popovi\'c, P. Rafanelli, S. Ciroi, V. Cracco

arxiv:1311.7538 v1 · 2013-11-29 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H34TWDKQ5KYGPJ7JEJVMT4EAV6}

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	2026-05-18T01:46:04.858419Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ef93b0d50eab067a7e9226ac9f080af96ae1827719440b9e04a81ab421b7ef9

Aliases

arxiv: 1311.7538 · arxiv_version: 1311.7538v1 · doi: 10.48550/arxiv.1311.7538 · pith_short_12: H34TWDKQ5KYG · pith_short_16: H34TWDKQ5KYGPJ7J · pith_short_8: H34TWDKQ

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/H34TWDKQ5KYGPJ7JEJVMT4EAV6 \
  | 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: 3ef93b0d50eab067a7e9226ac9f080af96ae1827719440b9e04a81ab421b7ef9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "240f5e63a4eb1480bb542734f73c3a563394de7a849778124df9482950fa8f67",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-11-29T12:14:08Z",
    "title_canon_sha256": "425d35479074c930234108c9b44befbb8cade63af5dc198837e1a3d78b051d9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.7538",
    "kind": "arxiv",
    "version": 1
  }
}