Pith Number

pith:KWZW6OV4

pith:2014:KWZW6OV4TBCWRMNHQ7YAX5JC3C

not attested not anchored not stored refs pending

The Unified Surface Ricci Flow

Feng Luo, Min Zhang, Ren Guo, Shing-Tung Yau, Wei Zeng, Xianfeng Gu

arxiv:1401.0401 v2 · 2014-01-02 · math.GT · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KWZW6OV4TBCWRMNHQ7YAX5JC3C}

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	2026-05-18T02:55:20.342225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55b36f3abc984568b1a787f00bf522d8a72aa3a9791eb7ce1858b943af88804a

Aliases

arxiv: 1401.0401 · arxiv_version: 1401.0401v2 · doi: 10.48550/arxiv.1401.0401 · pith_short_12: KWZW6OV4TBCW · pith_short_16: KWZW6OV4TBCWRMNH · pith_short_8: KWZW6OV4

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/KWZW6OV4TBCWRMNHQ7YAX5JC3C \
  | 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: 55b36f3abc984568b1a787f00bf522d8a72aa3a9791eb7ce1858b943af88804a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "309f912b0b4fb22b950a217c31315a0f0f7cd5c7586b5ed531970d5a46df28a9",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2014-01-02T09:47:10Z",
    "title_canon_sha256": "faf3e58d72148e7d8a3d500f3b35a07176da571b76a7c586cda30680bafc3be4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0401",
    "kind": "arxiv",
    "version": 2
  }
}