Pith Number

pith:B7VQC5TT

pith:2013:B7VQC5TT2LHPDSKXQKJZQKCAWV

not attested not anchored not stored refs pending

The Luminosity function of Narrow-Line Seyfert galaxies based on SDSS data

A.A. Ermash

arxiv:1302.2955 v1 · 2013-02-12 · astro-ph.GA · 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{B7VQC5TT2LHPDSKXQKJZQKCAWV}

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	2026-05-18T01:51:41.911799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0feb017673d2cef1c9578293982840b543de29daa352244dbfe4076b8780ec60

Aliases

arxiv: 1302.2955 · arxiv_version: 1302.2955v1 · doi: 10.48550/arxiv.1302.2955 · pith_short_12: B7VQC5TT2LHP · pith_short_16: B7VQC5TT2LHPDSKX · pith_short_8: B7VQC5TT

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/B7VQC5TT2LHPDSKXQKJZQKCAWV \
  | 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: 0feb017673d2cef1c9578293982840b543de29daa352244dbfe4076b8780ec60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88e4c12bc485bb9c992faec42912b0cb5aa8c932a590c4fd7d26062635742ad4",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-02-12T23:39:59Z",
    "title_canon_sha256": "6324d760cbc4890645afee87fe1c04d4d32a009cacb4d8b6b40386af288984e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.2955",
    "kind": "arxiv",
    "version": 1
  }
}