Pith Number

pith:PXJ2OUI5

pith:2017:PXJ2OUI5WYM4BLESEYPQACF7VY

not attested not anchored not stored refs pending

Twistor spaces and compact manifolds admitting both K\"ahler and non-K\"ahler structures

Ljudmila Kamenova

arxiv:1711.07948 v2 · 2017-11-21 · math.DG · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PXJ2OUI5WYM4BLESEYPQACF7VY}

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	2026-05-18T00:06:16.324868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7dd3a7511db619c0ac92261f0008bfae3963b964b211574049caf30efc1afa29

Aliases

arxiv: 1711.07948 · arxiv_version: 1711.07948v2 · doi: 10.48550/arxiv.1711.07948 · pith_short_12: PXJ2OUI5WYM4 · pith_short_16: PXJ2OUI5WYM4BLES · pith_short_8: PXJ2OUI5

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/PXJ2OUI5WYM4BLESEYPQACF7VY \
  | 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: 7dd3a7511db619c0ac92261f0008bfae3963b964b211574049caf30efc1afa29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89f44bddf825bbbfbca48b7d1a402a3bdf018694627c823a7bb8ae161de262c9",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-11-21T18:19:38Z",
    "title_canon_sha256": "d924d2ed0919d3181cf39a9d41a5e7816a9143c13070131cfc8c417375b17bd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07948",
    "kind": "arxiv",
    "version": 2
  }
}