Pith Number

pith:XU7NJMCZ

pith:2007:XU7NJMCZQPDZ2XYJ5Y5VFA3EPE

not attested not anchored not stored refs pending

Torsion of SU(2)-structures and Ricci curvature in dimension 5

Lucio Bedulli, Luigi Vezzoni

arxiv:math/0702790 v3 · 2007-02-26 · 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{XU7NJMCZQPDZ2XYJ5Y5VFA3EPE}

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	2026-05-18T02:51:13.791721Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd3ed4b05983c79d5f09ee3b5283647911eec6a0ca25151661299cd3d1a9b672

Aliases

arxiv: math/0702790 · arxiv_version: math/0702790v3 · doi: 10.48550/arxiv.math/0702790 · pith_short_12: XU7NJMCZQPDZ · pith_short_16: XU7NJMCZQPDZ2XYJ · pith_short_8: XU7NJMCZ

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/XU7NJMCZQPDZ2XYJ5Y5VFA3EPE \
  | 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: bd3ed4b05983c79d5f09ee3b5283647911eec6a0ca25151661299cd3d1a9b672

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7da7c81b0557eae0aeb9ad65ac6473168b40f36f0b26c11646f89faabec6e406",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2007-02-26T16:57:29Z",
    "title_canon_sha256": "93231e9b7828bf5302eb2b21d7567b8b301cb2aeebf994525eb1775eb0f3c3dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0702790",
    "kind": "arxiv",
    "version": 3
  }
}