Pith Number

pith:H5LLMZKN

pith:2012:H5LLMZKNFXNUYQ33UXFMURF4JO

not attested not anchored not stored refs pending

Black hole binary OJ287 as a testing platform for general relativity

A. Gopakumar, H. J. Lehto, K. Wiik, M. J. Valtonen, S. Mikkola

arxiv:1208.4524 v1 · 2012-08-22 · 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{H5LLMZKNFXNUYQ33UXFMURF4JO}

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	2026-05-18T03:48:14.088496Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f56b6654d2ddb4c437ba5caca44bc4b821f6b1ee5a1315f31fe6c637a6e9ef9

Aliases

arxiv: 1208.4524 · arxiv_version: 1208.4524v1 · doi: 10.48550/arxiv.1208.4524 · pith_short_12: H5LLMZKNFXNU · pith_short_16: H5LLMZKNFXNUYQ33 · pith_short_8: H5LLMZKN

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/H5LLMZKNFXNUYQ33UXFMURF4JO \
  | 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: 3f56b6654d2ddb4c437ba5caca44bc4b821f6b1ee5a1315f31fe6c637a6e9ef9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cee132f1fa4daffb36f8d825d7837f1b01aa5d3802344c4578b79ac7ecd1ecd0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-08-22T15:20:26Z",
    "title_canon_sha256": "33dee04008323268feae51ef338c79718f08839d2d099c8777736d53ac56bc88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.4524",
    "kind": "arxiv",
    "version": 1
  }
}