Pith Number

pith:GVQALHTW

pith:2011:GVQALHTWL4XTGMQXE33VTT35KL

not attested not anchored not stored refs pending

On the non-evolution of the dependence of black hole masses on bolometric luminosities for QSOs

C. M. Gutierrez, M. Lopez-Corredoira

arxiv:1112.4421 v1 · 2011-12-19 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GVQALHTWL4XTGMQXE33VTT35KL}

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	2026-05-18T01:59:05.450714Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3560059e765f2f33321726f759cf7d52e978d19c2d96fe97afe294b6603d283e

Aliases

arxiv: 1112.4421 · arxiv_version: 1112.4421v1 · doi: 10.48550/arxiv.1112.4421 · pith_short_12: GVQALHTWL4XT · pith_short_16: GVQALHTWL4XTGMQX · pith_short_8: GVQALHTW

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/GVQALHTWL4XTGMQXE33VTT35KL \
  | 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: 3560059e765f2f33321726f759cf7d52e978d19c2d96fe97afe294b6603d283e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1db6d738f19114e625044e9de3eadd4cdd702499f9e44e42373e15d5b32153d",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-12-19T17:49:39Z",
    "title_canon_sha256": "6d6b50c4d998d25fcbb9a8cff70bc216f757ce40cf86b60f942fd40863ee2c24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4421",
    "kind": "arxiv",
    "version": 1
  }
}