Pith Number

pith:R4OB7XV6

pith:2018:R4OB7XV6IVDPPNHUE5RO3OIHXD

not attested not anchored not stored refs pending

High accuracy measurement of gravitational wave back-reaction in the OJ287 black hole binary

A. Berdyugin, A. Gopakumar, D. E. Reichart, H. Jermak, K. Gazeas, K. Matsumoto, K. Nilsson, K. Sadakane, K.S. Baliyan, L. Dey, Mauri J. Valtonen, M. Kidger, R. Hudec, S. Ciprini, S. Haque, S. Mikkola, S. Zola, the OJ287-15/16 Collaboration, V. Piirola

arxiv:1810.00566 v1 · 2018-10-01 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R4OB7XV6IVDPPNHUE5RO3OIHXD}

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	2026-05-18T00:04:25.395793Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f1c1fdebe4546f7b4f42762edb907b8d23f4f0df4b2f51c03e2d00c5492538a

Aliases

arxiv: 1810.00566 · arxiv_version: 1810.00566v1 · doi: 10.48550/arxiv.1810.00566 · pith_short_12: R4OB7XV6IVDP · pith_short_16: R4OB7XV6IVDPPNHU · pith_short_8: R4OB7XV6

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/R4OB7XV6IVDPPNHUE5RO3OIHXD \
  | 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: 8f1c1fdebe4546f7b4f42762edb907b8d23f4f0df4b2f51c03e2d00c5492538a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83e1898a53d6842e7f3d1b2dd57b2dbd8371a73edbd9949d654a6583eee24d05",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-10-01T07:46:58Z",
    "title_canon_sha256": "6d81398b7c535d654a6b1f5ee4101b28735886188f75aefa6efbca1eaba62305"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.00566",
    "kind": "arxiv",
    "version": 1
  }
}