Pith Number

pith:WXKOIQCW

pith:2011:WXKOIQCW4ES2QTZ7IGMOM7ZU2T

not attested not anchored not stored refs pending

The ionization mechanism of NGC 185: how to fake a Seyfert galaxy?

Ana M. Teodorescu, Cintia Quireza, Denise R. Goncalves, Gustavo Lanfranchi, Laura Magrini, Lucimara Martins

arxiv:1110.5891 v1 · 2011-10-26 · 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{WXKOIQCW4ES2QTZ7IGMOM7ZU2T}

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	2026-05-18T02:00:03.458540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5d4e44056e125a84f3f4198e67f34d4c5589537b01d18e38ba9f00efe7c1b3c

Aliases

arxiv: 1110.5891 · arxiv_version: 1110.5891v1 · doi: 10.48550/arxiv.1110.5891 · pith_short_12: WXKOIQCW4ES2 · pith_short_16: WXKOIQCW4ES2QTZ7 · pith_short_8: WXKOIQCW

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/WXKOIQCW4ES2QTZ7IGMOM7ZU2T \
  | 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: b5d4e44056e125a84f3f4198e67f34d4c5589537b01d18e38ba9f00efe7c1b3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ca459a100b3f8aeed0e72ed5543767ef049c9e5e08aa4ec5826b9aa136d45d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-10-26T19:36:10Z",
    "title_canon_sha256": "71c1015cba5ce1ba3e596ce68139f0424d3c954edc3210c9ae45fd6efcf8628e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.5891",
    "kind": "arxiv",
    "version": 1
  }
}