Pith Number

pith:PBOPBR6Z

pith:2014:PBOPBR6Z3WREKU3CUZH7KR3BHB

not attested not anchored not stored refs pending

NANOGrav Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries in Circular Orbits

A. Brazier, A. N. Lommen, A. Sesana, D. J. Nice, D. R. Lorimer, D. R. Madison, D. R. Stinebring, F. Jenet, G. Jones, I. H. Stairs, J. A. Ellis, J. Luo, J. M. Cordes, J. Swiggum, K. Stovall, M. Koop, M. Lam, M. McLaughlin, M. Vallisneri, N. Garver-Daniels, N. Palliyaguru, P. B. Demorest, R. D. Ferdman, R. S. Lynch, R. van Haasteren, S. Burke-Spolaor, S. Chatterjee, S. J. Chamberlin, S. M. Ransom, S. T. McWilliams, T. Dolch, T. J. W. Lazio, T. T. Pennucci, V. M. Kaspi, W. W. Zhu, X. Deng, X. Siemens, Y. Wang, Z. Arzoumanian

arxiv:1404.1267 v2 · 2014-04-04 · astro-ph.GA · astro-ph.IM · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PBOPBR6Z3WREKU3CUZH7KR3BHB}

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.

Cited by

1 paper in Pith

Expectations for the first supermassive black-hole binary resolved by PTAs II: Milestones for binary characterization

Receipt and verification

First computed	2026-05-18T01:43:42.177014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

785cf0c7d9dda2455362a64ff54761386d31976d122f9f12ea6142fff607d840

Aliases

arxiv: 1404.1267 · arxiv_version: 1404.1267v2 · doi: 10.48550/arxiv.1404.1267 · pith_short_12: PBOPBR6Z3WRE · pith_short_16: PBOPBR6Z3WREKU3C · pith_short_8: PBOPBR6Z

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/PBOPBR6Z3WREKU3CUZH7KR3BHB \
  | 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: 785cf0c7d9dda2455362a64ff54761386d31976d122f9f12ea6142fff607d840

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4daac3613cd74390f92148c6c3b9940628b95aa2e501fb130a7f894ac15baa7",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-04-04T14:34:35Z",
    "title_canon_sha256": "2e65d492dfc80b2c46f99961a0dda51e1dfaec8acd60e6707fa29ec03841b207"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.1267",
    "kind": "arxiv",
    "version": 2
  }
}