Pith Number

pith:ERSSVOAZ

pith:2014:ERSSVOAZ74ZJISWYEX6LM5V3N7

not attested not anchored not stored refs pending

Curvature bounds via an isoperimetric comparison for Ricci flow on surfaces

Paul Bryan

arxiv:1403.4654 v1 · 2014-03-19 · 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{ERSSVOAZ74ZJISWYEX6LM5V3N7}

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	2026-05-18T02:53:28.493977Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24652ab819ff32944ad825fcb676bb6ff6f362bce140748d9584189bd96d5431

Aliases

arxiv: 1403.4654 · arxiv_version: 1403.4654v1 · doi: 10.48550/arxiv.1403.4654 · pith_short_12: ERSSVOAZ74ZJ · pith_short_16: ERSSVOAZ74ZJISWY · pith_short_8: ERSSVOAZ

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/ERSSVOAZ74ZJISWYEX6LM5V3N7 \
  | 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: 24652ab819ff32944ad825fcb676bb6ff6f362bce140748d9584189bd96d5431

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67183906ac8184b9279b1fe2a50d8740eefd6c188621570f2c830edfad269bab",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-03-19T00:26:13Z",
    "title_canon_sha256": "443ac065771bd8080db366cea3d8588a14a0c5c9cd3fe8b85e8080ec48e865fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.4654",
    "kind": "arxiv",
    "version": 1
  }
}