Pith Number

pith:UZMDVVYA

pith:2008:UZMDVVYA5C22PMR2UTNMMBM373

not attested not anchored not stored refs pending

On Einstein Metrics on 4-Manifolds with Finite Cyclic Fundamental Group

Ioana Suvaina

arxiv:0804.4823 v2 · 2008-04-30 · 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{UZMDVVYA5C22PMR2UTNMMBM373}

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	2026-05-18T01:02:57.492265Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6583ad700e8b5a7b23aa4dac6059bfec24a9969394cca3360cb2ff94222a894

Aliases

arxiv: 0804.4823 · arxiv_version: 0804.4823v2 · doi: 10.48550/arxiv.0804.4823 · pith_short_12: UZMDVVYA5C22 · pith_short_16: UZMDVVYA5C22PMR2 · pith_short_8: UZMDVVYA

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/UZMDVVYA5C22PMR2UTNMMBM373 \
  | 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: a6583ad700e8b5a7b23aa4dac6059bfec24a9969394cca3360cb2ff94222a894

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a6573907d519d3433f777b875dd2e0f31b0d65eed7a1d33230551da10cb4f8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2008-04-30T13:49:31Z",
    "title_canon_sha256": "cfecad0b3d697a12e38dbb531841da274168133fb13d45d1847ecae677bb55de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.4823",
    "kind": "arxiv",
    "version": 2
  }
}