Pith Number

pith:BGVQ5NGN

pith:2010:BGVQ5NGNCO66HHL22AXZVY4YRO

not attested not anchored not stored refs pending

The characteristic initial value problem for plane symmetric spacetimes with weak regularity

John M. Stewart, Philippe G. LeFloch

arxiv:1004.2343 v2 · 2010-04-14 · gr-qc · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BGVQ5NGNCO66HHL22AXZVY4YRO}

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	2026-05-18T04:20:03.888338Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09ab0eb4cd13bde39d7ad02f9ae3988bbfccff10b6dca9921b0cc0ebc64e2d14

Aliases

arxiv: 1004.2343 · arxiv_version: 1004.2343v2 · doi: 10.48550/arxiv.1004.2343 · pith_short_12: BGVQ5NGNCO66 · pith_short_16: BGVQ5NGNCO66HHL2 · pith_short_8: BGVQ5NGN

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/BGVQ5NGNCO66HHL22AXZVY4YRO \
  | 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: 09ab0eb4cd13bde39d7ad02f9ae3988bbfccff10b6dca9921b0cc0ebc64e2d14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15bf8116e6da6053891d97fa5bfd7072c798c537001ec2c7063574c1ed9a9d9f",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-04-14T08:01:15Z",
    "title_canon_sha256": "7cfc9b2f29d8191b375b0029401b407ac4c75d84740ad9dec03e7cf02ce2effe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.2343",
    "kind": "arxiv",
    "version": 2
  }
}