Pith Number

pith:N3VYREXM

pith:2013:N3VYREXMIGJ3DCU5GA5L7X7TO4

not attested not anchored not stored refs pending

Symmetry breaking in a constrained Cheeger type isoperimetric inequality

Barbara Brandolini, Carlo Nitsch, Cristina Trombetti, Francesco Della Pietra

arxiv:1305.6271 v2 · 2013-05-27 · math.OC · 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{N3VYREXMIGJ3DCU5GA5L7X7TO4}

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	2026-05-18T03:07:44.319688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6eeb8892ec4193b18a9d303abfdff37726b57dd92a68c0cf54756d99dc99ebee

Aliases

arxiv: 1305.6271 · arxiv_version: 1305.6271v2 · doi: 10.48550/arxiv.1305.6271 · pith_short_12: N3VYREXMIGJ3 · pith_short_16: N3VYREXMIGJ3DCU5 · pith_short_8: N3VYREXM

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/N3VYREXMIGJ3DCU5GA5L7X7TO4 \
  | 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: 6eeb8892ec4193b18a9d303abfdff37726b57dd92a68c0cf54756d99dc99ebee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "716fe33e4379d1e0b366c4fbf9aee9d3c049c5d61d1960348a24403ad458bed4",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-05-27T16:39:33Z",
    "title_canon_sha256": "4af452b53ad478b0840a61fe66593a23a071c402dc3509b549f631c8095079bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.6271",
    "kind": "arxiv",
    "version": 2
  }
}