Pith Number

pith:NU346OBT

pith:2019:NU346OBTPPBA6QXVZUCRJWKTUR

not attested not anchored not stored refs pending

Complex manifolds with negative curvature operator

Jeffrey Streets, Man-Chun Lee

arxiv:1903.12645 v1 · 2019-03-29 · math.DG · 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{NU346OBTPPBA6QXVZUCRJWKTUR}

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	2026-05-17T23:49:53.558772Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d37cf38337bc20f42f5cd0514d953a457fdf60b44bb5d4918d491b1984ef9e3

Aliases

arxiv: 1903.12645 · arxiv_version: 1903.12645v1 · doi: 10.48550/arxiv.1903.12645 · pith_short_12: NU346OBTPPBA · pith_short_16: NU346OBTPPBA6QXV · pith_short_8: NU346OBT

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/NU346OBTPPBA6QXVZUCRJWKTUR \
  | 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: 6d37cf38337bc20f42f5cd0514d953a457fdf60b44bb5d4918d491b1984ef9e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5582a86ad22240b34ea66b3d516bff4e265c4cdecc0928b8b08dd8453102e080",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-03-29T17:45:38Z",
    "title_canon_sha256": "3d3ba6023b2b4447a32838de0868c0a56048ade595d69793fd173e8b832ac978"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.12645",
    "kind": "arxiv",
    "version": 1
  }
}