Pith Number

pith:PS2DSBDF

pith:2012:PS2DSBDFNZKW2HK7JMBG3EINSJ

not attested not anchored not stored refs pending

A Census of Broad-Line Active Galactic Nuclei in Nearby Galaxies: Coeval Star Formation and Rapid Black Hole Growth

(2) Harker School), Alexander D. Hsu (2), Dale D. Kocevski (1) ((1) UCSC, David C. Koo (1), Jerome J. Fang (1), Jonathan R. Trump (1), S. M. Faber (1)

arxiv:1212.0544 v1 · 2012-12-03 · 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{PS2DSBDFNZKW2HK7JMBG3EINSJ}

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	2026-05-18T01:52:48.192795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cb43904656e556d1d5f4b026d910d9252eefc1ca4bc2229df5c055c2be718c4

Aliases

arxiv: 1212.0544 · arxiv_version: 1212.0544v1 · doi: 10.48550/arxiv.1212.0544 · pith_short_12: PS2DSBDFNZKW · pith_short_16: PS2DSBDFNZKW2HK7 · pith_short_8: PS2DSBDF

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/PS2DSBDFNZKW2HK7JMBG3EINSJ \
  | 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: 7cb43904656e556d1d5f4b026d910d9252eefc1ca4bc2229df5c055c2be718c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b7c9384537d42fdfb030917de14bc7eb28025df243910397a93858e2d7f9d41",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-12-03T21:00:02Z",
    "title_canon_sha256": "15ef9794870b4c9f168dd4c20831d3db272d830ccff7a556000cfff98663793b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.0544",
    "kind": "arxiv",
    "version": 1
  }
}