Pith Number

pith:WWJ3GSWE

pith:2016:WWJ3GSWEAUXDZSFNMLNGIBDO5W

not attested not anchored not stored refs pending

A note on the isoperimetric inequality in the plane

Absos Ali Shaikh, Chandan Kumar Mondal

arxiv:1609.08458 v1 · 2016-09-24 · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WWJ3GSWEAUXDZSFNMLNGIBDO5W}

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	2026-05-18T01:03:45.825445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b593b34ac4052e3cc8ad62da64046eeda142cf7628d1b091954fb06629b07d71

Aliases

arxiv: 1609.08458 · arxiv_version: 1609.08458v1 · doi: 10.48550/arxiv.1609.08458 · pith_short_12: WWJ3GSWEAUXD · pith_short_16: WWJ3GSWEAUXDZSFN · pith_short_8: WWJ3GSWE

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/WWJ3GSWEAUXDZSFNMLNGIBDO5W \
  | 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: b593b34ac4052e3cc8ad62da64046eeda142cf7628d1b091954fb06629b07d71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20cd4434b70c56cbc9c0bb6ba22d24374adb423960896fee8d6a22dcfc67d155",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2016-09-24T16:33:31Z",
    "title_canon_sha256": "5bda48b1eea53596dab5321e24850fb3edf5557ab1b3163156f918679f8e6d45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.08458",
    "kind": "arxiv",
    "version": 1
  }
}