Pith Number

pith:L2M4JSZ3

pith:2011:L2M4JSZ3AIF4HVCQMC4XPSDGJT

not attested not anchored not stored refs pending

Ionization Mechanisms of HBLR and Non-HBLR Seyfert 2 Galaxies

Chorng-Yuan Hwang, Po-Chieh Yu

arxiv:1104.5325 v1 · 2011-04-28 · 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{L2M4JSZ3AIF4HVCQMC4XPSDGJT}

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	2026-05-18T02:02:13.713532Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e99c4cb3b020bc3d45060b977c8664cf4f9fbc35b2e7d318d84c5e508ddf3c1

Aliases

arxiv: 1104.5325 · arxiv_version: 1104.5325v1 · doi: 10.48550/arxiv.1104.5325 · pith_short_12: L2M4JSZ3AIF4 · pith_short_16: L2M4JSZ3AIF4HVCQ · pith_short_8: L2M4JSZ3

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/L2M4JSZ3AIF4HVCQMC4XPSDGJT \
  | 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: 5e99c4cb3b020bc3d45060b977c8664cf4f9fbc35b2e7d318d84c5e508ddf3c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aac8af0ed5bf1a9ae0d26060dd55182078e6498322aa984486752c7b63b6116d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-04-28T08:43:44Z",
    "title_canon_sha256": "3f716fbe409fb69d5578d283991db92fd207a55663d6f573d4e566241c0d6734"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.5325",
    "kind": "arxiv",
    "version": 1
  }
}