Pith Number

pith:FJ7HOI56

pith:2010:FJ7HOI56LUYWCRCRUCMA2WTLGL

not attested not anchored not stored refs pending

On Einstein, Hermitian 4-Manifolds

Claude LeBrun

arxiv:1010.0238 v1 · 2010-10-01 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FJ7HOI56LUYWCRCRUCMA2WTLGL}

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	2026-05-18T04:40:00.004924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a7e7723be5d31614451a0980d5a6b32c2f939522d074275c6943270825eb8aa

Aliases

arxiv: 1010.0238 · arxiv_version: 1010.0238v1 · doi: 10.48550/arxiv.1010.0238 · pith_short_12: FJ7HOI56LUYW · pith_short_16: FJ7HOI56LUYWCRCR · pith_short_8: FJ7HOI56

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/FJ7HOI56LUYWCRCRUCMA2WTLGL \
  | 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: 2a7e7723be5d31614451a0980d5a6b32c2f939522d074275c6943270825eb8aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d62895e80f5266f721b3ac87b9c774aeeaec80691fe7a0cdbb29ebc11f2cd5cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2010-10-01T19:03:39Z",
    "title_canon_sha256": "d6ff781af2bd830860e56b48e28543468abb1773162d48f0cc0e2aba3242dc58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.0238",
    "kind": "arxiv",
    "version": 1
  }
}