Pith Number

pith:FBWNSPOA

pith:2013:FBWNSPOAHQ2H5F2F27WFXQU3E7

not attested not anchored not stored refs pending

The nature of massive black hole binary candidates: I. Spectral properties and evolution

Carmen Montuori, David W. Hogg, Elisabeta Lusso, Jason X. Prochaska, Massimo Dotti, Michele Fumagalli, Paraskevi Tsalmantza, Roberto Decarli

arxiv:1305.4941 v2 · 2013-05-21 · 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{FBWNSPOAHQ2H5F2F27WFXQU3E7}

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	2026-05-18T01:49:48.251514Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

286cd93dc03c347e9745d7ec5bc29b27f3613986c51a052fe379cff43c0372f0

Aliases

arxiv: 1305.4941 · arxiv_version: 1305.4941v2 · doi: 10.48550/arxiv.1305.4941 · pith_short_12: FBWNSPOAHQ2H · pith_short_16: FBWNSPOAHQ2H5F2F · pith_short_8: FBWNSPOA

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/FBWNSPOAHQ2H5F2F27WFXQU3E7 \
  | 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: 286cd93dc03c347e9745d7ec5bc29b27f3613986c51a052fe379cff43c0372f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86516fcfe514371f151c413ade13bb075cdcdbfd6445a3d76a6a56b9f30d7c99",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-05-21T20:00:38Z",
    "title_canon_sha256": "ee95d9735207da05cae759a80755ea024109c3e1a7be5b095e11f48f5d6e9cd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4941",
    "kind": "arxiv",
    "version": 2
  }
}