Pith Number

pith:RWRPT6DK

pith:2014:RWRPT6DKC3YQRZINJHC67GYWMD

not attested not anchored not stored refs pending

On the Size of a Ricci Flow Neckpinch via Optimal Transport

Michael Munn, Sajjad Lakzian

arxiv:1404.7086 v1 · 2014-04-28 · math.MG · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RWRPT6DKC3YQRZINJHC67GYWMD}

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	2026-05-18T02:53:05.206802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8da2f9f86a16f108e50d49c5ef9b1660c106e40dd88ed5a46adff7235573de75

Aliases

arxiv: 1404.7086 · arxiv_version: 1404.7086v1 · doi: 10.48550/arxiv.1404.7086 · pith_short_12: RWRPT6DKC3YQ · pith_short_16: RWRPT6DKC3YQRZIN · pith_short_8: RWRPT6DK

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/RWRPT6DKC3YQRZINJHC67GYWMD \
  | 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: 8da2f9f86a16f108e50d49c5ef9b1660c106e40dd88ed5a46adff7235573de75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0747e2683ed6e95c1ff77d6f32ac7a364f398be47d41889d5a17ef804c6195b8",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2014-04-28T18:43:39Z",
    "title_canon_sha256": "8f86ed4594d3a5bb101e2a0a0087d293d1e017218f01a825b05c687089267fda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.7086",
    "kind": "arxiv",
    "version": 1
  }
}