Pith Number

pith:RQTRIXP2

pith:2010:RQTRIXP2BBV3JE57GIBZTLL4QL

not attested not anchored not stored refs pending

Uniqueness and nonuniqueness for Ricci flow on surfaces: Reverse cusp singularities

Peter Topping

arxiv:1010.2795 v1 · 2010-10-14 · math.DG · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RQTRIXP2BBV3JE57GIBZTLL4QL}

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	2026-05-18T04:39:19.188065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c27145dfa086bb493bf320399ad7c82e4af4d3973f2e7d517ac594249abc659

Aliases

arxiv: 1010.2795 · arxiv_version: 1010.2795v1 · doi: 10.48550/arxiv.1010.2795 · pith_short_12: RQTRIXP2BBV3 · pith_short_16: RQTRIXP2BBV3JE57 · pith_short_8: RQTRIXP2

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/RQTRIXP2BBV3JE57GIBZTLL4QL \
  | 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: 8c27145dfa086bb493bf320399ad7c82e4af4d3973f2e7d517ac594249abc659

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a69530d452bb979c49dd3138ed03400cfa697455f7b5280496ee9f0aa0c4e11",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2010-10-14T00:05:18Z",
    "title_canon_sha256": "1339b8ba6a492e49cd3122784109630d2355ba69f7e781f94e5a3e8ac6a24f66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.2795",
    "kind": "arxiv",
    "version": 1
  }
}