Pith Number

pith:LLPGDUGE

pith:2010:LLPGDUGE6EVJWXVXEJAGWCC7MN

not attested not anchored not stored refs pending

Constraints on Black Hole Growth, Quasar Lifetimes, and Eddington Ratio Distributions from the SDSS Broad Line Quasar Black Hole Mass Function

Aneta Siemiginowska (CFA), Brandon C. Kelly (CfA), Lars Hernquist (CfA), Marianne Vestergaard (DARK), Philip Hopkins (Berkeley), Xiaohui Fan (U. Arizona)

arxiv:1006.3561 v1 · 2010-06-17 · 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{LLPGDUGE6EVJWXVXEJAGWCC7MN}

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	2026-05-18T02:06:44.851615Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ade61d0c4f12a9b5eb722406b085f634a4640531589ede9be8f75fce232c740

Aliases

arxiv: 1006.3561 · arxiv_version: 1006.3561v1 · doi: 10.48550/arxiv.1006.3561 · pith_short_12: LLPGDUGE6EVJ · pith_short_16: LLPGDUGE6EVJWXVX · pith_short_8: LLPGDUGE

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/LLPGDUGE6EVJWXVXEJAGWCC7MN \
  | 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: 5ade61d0c4f12a9b5eb722406b085f634a4640531589ede9be8f75fce232c740

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffa74235aa0b5913988d9eea8435caee9ae03b6b89e7e93d03684d56c04bc2e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-06-17T20:00:08Z",
    "title_canon_sha256": "8053d55c729fa8db583b8515efde402252b692d3a836ebcb72428b4a76b255d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.3561",
    "kind": "arxiv",
    "version": 1
  }
}