Pith Number

pith:N5SPDS6P

pith:2011:N5SPDS6PX5CQWMHF4Y5ODLRKOB

not attested not anchored not stored refs pending

Masses of Black Holes in Active Galactic Nuclei: Implications for NLS1s

Bradley M. Peterson

arxiv:1109.4181 v1 · 2011-09-19 · 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{N5SPDS6PX5CQWMHF4Y5ODLRKOB}

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	2026-05-18T04:12:44.045426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f64f1cbcfbf450b30e5e63ae1ae2a704b0f564307fbe211b45bbf8e501d44e7

Aliases

arxiv: 1109.4181 · arxiv_version: 1109.4181v1 · doi: 10.48550/arxiv.1109.4181 · pith_short_12: N5SPDS6PX5CQ · pith_short_16: N5SPDS6PX5CQWMHF · pith_short_8: N5SPDS6P

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/N5SPDS6PX5CQWMHF4Y5ODLRKOB \
  | 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: 6f64f1cbcfbf450b30e5e63ae1ae2a704b0f564307fbe211b45bbf8e501d44e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "baea1c3ccdfa5207c22eb8652dfcc8a4a3266e77de7290001b10439a73d41e5c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-19T22:07:47Z",
    "title_canon_sha256": "ae167dd1ebe9ea0e0290a6980ea0337725e882fce6ba5689b36c52c101f82d53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4181",
    "kind": "arxiv",
    "version": 1
  }
}