Pith Number

pith:KGQYNNQ5

pith:2018:KGQYNNQ5EYOBTBKSIDP6QJECU6

not attested not anchored not stored refs pending

On the image of MRC fibrations of projective manifolds with semi-positive holomorphic sectional curvature

Shin-ichi Matsumura

arxiv:1801.09081 v2 · 2018-01-27 · math.DG · math.AG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KGQYNNQ5EYOBTBKSIDP6QJECU6}

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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

On projective manifolds with pseudo-effective tangent bundle

Receipt and verification

First computed	2026-07-05T04:25:06.797919Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51a186b61d261c19855240dfe82482a7a984c0f9b5838d50e6303262e0066b53

Aliases

arxiv: 1801.09081 · arxiv_version: 1801.09081v2 · doi: 10.48550/arxiv.1801.09081 · pith_short_12: KGQYNNQ5EYOB · pith_short_16: KGQYNNQ5EYOBTBKS · pith_short_8: KGQYNNQ5

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/KGQYNNQ5EYOBTBKSIDP6QJECU6 \
  | 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: 51a186b61d261c19855240dfe82482a7a984c0f9b5838d50e6303262e0066b53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14665be3ff8422cacc95392a3d02727553484311aca1e188d61be599a2790eef",
    "cross_cats_sorted": [
      "math.AG",
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-01-27T12:28:08Z",
    "title_canon_sha256": "607f01116d0eb587b890f7a1529cdd7de968fae873986bdb1791b7c9aba206f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.09081",
    "kind": "arxiv",
    "version": 2
  }
}