Pith Number

pith:SJPQ4AIS

pith:2017:SJPQ4AISBLJOWH2S3HC5GPK7HU

not attested not anchored not stored refs pending

On the isoperimetric problem with perimeter density r^p

Gyula Csato

arxiv:1706.09619 v1 · 2017-06-29 · 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{SJPQ4AISBLJOWH2S3HC5GPK7HU}

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	2026-05-18T00:41:14.360482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

925f0e01120ad2eb1f52d9c5d33d5f3d1832c1a17326590eeee914f14fa54cc8

Aliases

arxiv: 1706.09619 · arxiv_version: 1706.09619v1 · doi: 10.48550/arxiv.1706.09619 · pith_short_12: SJPQ4AISBLJO · pith_short_16: SJPQ4AISBLJOWH2S · pith_short_8: SJPQ4AIS

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/SJPQ4AISBLJOWH2S3HC5GPK7HU \
  | 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: 925f0e01120ad2eb1f52d9c5d33d5f3d1832c1a17326590eeee914f14fa54cc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e7598a7980d7566c3f5d337ecf0aba0f4829a07a9ec179a7c0ce3b9d0ec27ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-06-29T08:11:19Z",
    "title_canon_sha256": "9688c4a12fdf9198145df1288a5479976113930606ac6cbfcfbe1ee3874eeb10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.09619",
    "kind": "arxiv",
    "version": 1
  }
}