Pith Number

pith:BFLQFISO

pith:2011:BFLQFISOFN56H7KMEH5QBCU7GU

not attested not anchored not stored refs pending

The Mass of the Black Hole in Arp 151 from Bayesian Modeling of Reverberation Mapping Data

Aaron J. Barth, Alexei V. Filippenko, Anna Pancoast, Brendon J. Brewer, Jenny E. Greene, Jong-Hak Woo, Matthew A. Malkan, Misty C. Bentz, Tommaso Treu, Vardha N. Bennert

arxiv:1104.4794 v1 · 2011-04-25 · astro-ph.CO · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BFLQFISOFN56H7KMEH5QBCU7GU}

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	2026-05-18T02:02:15.275088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

095702a24e2b7be3fd4c21fb008a9f350cf9b13760191d05a8bab0968f4f9b23

Aliases

arxiv: 1104.4794 · arxiv_version: 1104.4794v1 · doi: 10.48550/arxiv.1104.4794 · pith_short_12: BFLQFISOFN56 · pith_short_16: BFLQFISOFN56H7KM · pith_short_8: BFLQFISO

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/BFLQFISOFN56H7KMEH5QBCU7GU \
  | 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: 095702a24e2b7be3fd4c21fb008a9f350cf9b13760191d05a8bab0968f4f9b23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8d56c3dc2a8d23d4d885279fa0a6b0a0f17f6ad91404dc78dff12842874675b",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-04-25T20:05:04Z",
    "title_canon_sha256": "efb21c80dd37e16f3ee05641a2f5d0fdfd2eeeb369e529f7bbf3f6c42631a3fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4794",
    "kind": "arxiv",
    "version": 1
  }
}