Pith Number

pith:T6PYOMZE

pith:2018:T6PYOMZEQIWFLLEWM5K762WHN5

not attested not anchored not stored refs pending

On projective manifolds with semi-positive holomorphic sectional curvature

Shin-ichi Matsumura

arxiv:1811.04182 v1 · 2018-11-10 · 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{T6PYOMZEQIWFLLEWM5K762WHN5}

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	2026-05-18T00:01:06.027707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f9f873324822c55ac966755ff6ac76f4cf32040cdc010a0d1c4c257b71025ec

Aliases

arxiv: 1811.04182 · arxiv_version: 1811.04182v1 · doi: 10.48550/arxiv.1811.04182 · pith_short_12: T6PYOMZEQIWF · pith_short_16: T6PYOMZEQIWFLLEW · pith_short_8: T6PYOMZE

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/T6PYOMZEQIWFLLEWM5K762WHN5 \
  | 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: 9f9f873324822c55ac966755ff6ac76f4cf32040cdc010a0d1c4c257b71025ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "503eeafd94cf2b44a832ddda9c62b8d23785efa35b86b7d2c7ed4065341f0d03",
    "cross_cats_sorted": [
      "math.AG",
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-11-10T03:18:55Z",
    "title_canon_sha256": "4443a40bfd7d529ba6046de5c285330f4203f507b4386974918f45031e5d1f8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.04182",
    "kind": "arxiv",
    "version": 1
  }
}