Pith Number

pith:GR2ODNES

pith:2019:GR2ODNESIDRSECUDIP4MUS36DS

not attested not anchored not stored refs pending

Positive curvature operator, projective manifold and rational connectedness

Kai Tang

arxiv:1905.04894 v2 · 2019-05-13 · 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{GR2ODNESIDRSECUDIP4MUS36DS}

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.

Cited by

1 paper in Pith

Fundamental groups of compact K\"ahler manifolds with semi-positive holomorphic sectional curvature

Receipt and verification

First computed	2026-05-17T23:43:14.386446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3474e1b49240e3220a8343f8ca4b7e1cb2d88937f6e22667bce0c26f4e3e5fb2

Aliases

arxiv: 1905.04894 · arxiv_version: 1905.04894v2 · doi: 10.48550/arxiv.1905.04894 · pith_short_12: GR2ODNESIDRS · pith_short_16: GR2ODNESIDRSECUD · pith_short_8: GR2ODNES

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/GR2ODNESIDRSECUDIP4MUS36DS \
  | 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: 3474e1b49240e3220a8343f8ca4b7e1cb2d88937f6e22667bce0c26f4e3e5fb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b708a4a543d192fffef4a0980d63f6d0d6f359e3b145f2122394d66989ba2038",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-05-13T07:41:54Z",
    "title_canon_sha256": "8fbaba0e5549a6ef389eef5441d74a2d09e1614621944f834a8e4ced5b7a6483"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.04894",
    "kind": "arxiv",
    "version": 2
  }
}