Pith Number

pith:WE2GNDVT

pith:2017:WE2GNDVTXWYLRHK5KJV7JABFOL

not attested not anchored not stored refs pending

The isoperimetric problem for nonlocal perimeters

Annalisa Cesaroni, Matteo Novaga

arxiv:1707.06504 v2 · 2017-07-20 · 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{WE2GNDVTXWYLRHK5KJV7JABFOL}

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	2026-05-18T00:36:08.462396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b134668eb3bdb0b89d5d526bf4802572e2021906f4e2700163bf1e577743a079

Aliases

arxiv: 1707.06504 · arxiv_version: 1707.06504v2 · doi: 10.48550/arxiv.1707.06504 · pith_short_12: WE2GNDVTXWYL · pith_short_16: WE2GNDVTXWYLRHK5 · pith_short_8: WE2GNDVT

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/WE2GNDVTXWYLRHK5KJV7JABFOL \
  | 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: b134668eb3bdb0b89d5d526bf4802572e2021906f4e2700163bf1e577743a079

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96c04c560e0dd1bb6a364eb3658230086b8db3b1a1dc3a5e9133c4ce4abe0e00",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-07-20T13:47:28Z",
    "title_canon_sha256": "74f953dd89f6f4ac184c7b09290e25fc27d9b8c91b069279d5ac4354cbe4deda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.06504",
    "kind": "arxiv",
    "version": 2
  }
}