Pith Number

pith:BVJQ7T3O

pith:2009:BVJQ7T3O3ETFJFVGAKSZY2VB3Z

not attested not anchored not stored refs pending

Conformally flat Lorentz manifolds and Fefferman Lorentz metrics

Yoshinobu Kamishima

arxiv:0911.0867 v2 · 2009-11-04 · math.DG · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BVJQ7T3O3ETFJFVGAKSZY2VB3Z}

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	2026-05-18T04:34:54.351287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d530fcf6ed9265496a602a59c6aa1de640de33ad0f8abb424abc2ad66db72e3

Aliases

arxiv: 0911.0867 · arxiv_version: 0911.0867v2 · doi: 10.48550/arxiv.0911.0867 · pith_short_12: BVJQ7T3O3ETF · pith_short_16: BVJQ7T3O3ETFJFVG · pith_short_8: BVJQ7T3O

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/BVJQ7T3O3ETFJFVGAKSZY2VB3Z \
  | 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: 0d530fcf6ed9265496a602a59c6aa1de640de33ad0f8abb424abc2ad66db72e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f841870653621e15e36a5ccb24903badbd0f647005a83667d94098f79265b66",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-11-04T16:29:35Z",
    "title_canon_sha256": "e60b08cb755798760d6a86828ac27e955a92959be8c56012d26254bbd75d668a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0867",
    "kind": "arxiv",
    "version": 2
  }
}