Pith Number

pith:VJTFO5VC

pith:2018:VJTFO5VCYMMT7SDTMNDVYKLAP7

not attested not anchored not stored refs pending

RC-positivity and scalar-flat metrics on ruled manifolds

Jun Wang, Xiaokui Yang

arxiv:1809.01105 v1 · 2018-09-04 · 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{VJTFO5VCYMMT7SDTMNDVYKLAP7}

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	2026-05-18T00:06:31.750311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa665776a2c3193fc87363475c29607fcf4498081acd01ad3d4a041963fe8fba

Aliases

arxiv: 1809.01105 · arxiv_version: 1809.01105v1 · doi: 10.48550/arxiv.1809.01105 · pith_short_12: VJTFO5VCYMMT · pith_short_16: VJTFO5VCYMMT7SDT · pith_short_8: VJTFO5VC

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/VJTFO5VCYMMT7SDTMNDVYKLAP7 \
  | 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: aa665776a2c3193fc87363475c29607fcf4498081acd01ad3d4a041963fe8fba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2936ff93e0ef280f2b934e07b5185b05ccfa2c29fa79a7a36bdac338e6f879f",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-09-04T17:18:02Z",
    "title_canon_sha256": "88a4af484fa052d33612907fb70393f920ff9bf976eab3cc5533db7bd03c4924"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.01105",
    "kind": "arxiv",
    "version": 1
  }
}