Pith Number

pith:4PKVA52Z

pith:2008:4PKVA52ZNWD3EJAE7HFPZZDXR2

not attested not anchored not stored refs pending

Binary-black-hole initial data with nearly-extremal spins

Geoffrey Lovelace, Harald P. Pfeiffer, Robert Owen, Tony Chu

arxiv:0805.4192 v3 · 2008-05-27 · 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{4PKVA52ZNWD3EJAE7HFPZZDXR2}

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

3 papers in Pith

Surrogate models for precessing binary black hole simulations with unequal masses

Trapping, Irregular Waveforms, and Efficient Radiation in Ultra-relativistic Black Hole Encounters

Data-Driven Acceleration of Eccentricity Reduction for Binary Black Hole Simulations

Receipt and verification

First computed	2026-07-04T15:38:22.602309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3d55077596d87b22404f9cafce4778ebf7bb41853bdf9143af6880cc3d46fdd

Aliases

arxiv: 0805.4192 · arxiv_version: 0805.4192v3 · doi: 10.48550/arxiv.0805.4192 · pith_short_12: 4PKVA52ZNWD3 · pith_short_16: 4PKVA52ZNWD3EJAE · pith_short_8: 4PKVA52Z

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/4PKVA52ZNWD3EJAE7HFPZZDXR2 \
  | 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: e3d55077596d87b22404f9cafce4778ebf7bb41853bdf9143af6880cc3d46fdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c61ba1cb5e1e1bd70b058c09f2723a62c2f65b82602945482542f87c88f70351",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-05-27T19:31:20Z",
    "title_canon_sha256": "ccdaa36df09a8ccb4936c99f6ba342bcd76ccfc739bebf1f69abebb4bce44d9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.4192",
    "kind": "arxiv",
    "version": 3
  }
}