Pith Number

pith:SFWF52U7

pith:2011:SFWF52U7BU3WGPT6GHADPT4Y2Q

not attested not anchored not stored refs pending

Exact Piecewise Flat Gravitational Waves

Maarten van de Meent

arxiv:1106.5380 v2 · 2011-06-27 · 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{SFWF52U7BU3WGPT6GHADPT4Y2Q}

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	2026-05-18T04:07:41.656100Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

916c5eea9f0d37633e7e31c037cf98d407504b4240726c690beb93f615a761d9

Aliases

arxiv: 1106.5380 · arxiv_version: 1106.5380v2 · doi: 10.48550/arxiv.1106.5380 · pith_short_12: SFWF52U7BU3W · pith_short_16: SFWF52U7BU3WGPT6 · pith_short_8: SFWF52U7

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/SFWF52U7BU3WGPT6GHADPT4Y2Q \
  | 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: 916c5eea9f0d37633e7e31c037cf98d407504b4240726c690beb93f615a761d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4d2f87f59b0018c2924f3b7b93b8c6b11dc82d50567e49601bda83fd786eaea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-06-27T12:52:39Z",
    "title_canon_sha256": "387bc61e290b0d8ab067bb165fab375b7307f30cbe8912ab7a827c67584bda27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.5380",
    "kind": "arxiv",
    "version": 2
  }
}