Pith Number

pith:F5XMGWOH

pith:2012:F5XMGWOHI374R75J2YSQLFDHAT

not attested not anchored not stored refs pending

A sample of Seyfert-2 galaxies with ultra-luminous galaxy-wide NLRs -- Quasar light echos?

Claudia Winge, Karianne Holhjem, Mischa Schirmer, Nancy Levenson, Ruben Diaz

arxiv:1211.7098 v2 · 2012-11-29 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F5XMGWOHI374R75J2YSQLFDHAT}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:36:46.008358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f6ec359c746ffc8ffa9d62505946704edd613ef291c84a7cff16470f82f6e66

Aliases

arxiv: 1211.7098 · arxiv_version: 1211.7098v2 · doi: 10.48550/arxiv.1211.7098 · pith_short_12: F5XMGWOHI374 · pith_short_16: F5XMGWOHI374R75J · pith_short_8: F5XMGWOH

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/F5XMGWOHI374R75J2YSQLFDHAT \
  | 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: 2f6ec359c746ffc8ffa9d62505946704edd613ef291c84a7cff16470f82f6e66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e23c7347328dd6e560e3025497ed202bc9101b30dfc4836560dcf3dd6256767b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-29T21:45:59Z",
    "title_canon_sha256": "50c330275661a40a777a7b044eafa2b9023f35b5195fddee675d377c07318b2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.7098",
    "kind": "arxiv",
    "version": 2
  }
}