Pith Number

pith:AI2I7WEA

pith:2018:AI2I7WEAEXFMS4OVZRIOVFVHZT

not attested not anchored not stored refs pending

The isoperimetric problem for a class of non-radial weights and applications

Angelo Alvino, Anna Mercaldo, Francesco Chiacchio, Friedemann Brock, Maria Rosaria Posteraro

arxiv:1805.02518 v1 · 2018-05-04 · 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{AI2I7WEAEXFMS4OVZRIOVFVHZT}

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	2026-05-18T00:16:39.728106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02348fd88025cac971d5cc50ea96a7ccca22448cc7f1c0f2a625072ba22e62b8

Aliases

arxiv: 1805.02518 · arxiv_version: 1805.02518v1 · doi: 10.48550/arxiv.1805.02518 · pith_short_12: AI2I7WEAEXFM · pith_short_16: AI2I7WEAEXFMS4OV · pith_short_8: AI2I7WEA

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/AI2I7WEAEXFMS4OVZRIOVFVHZT \
  | 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: 02348fd88025cac971d5cc50ea96a7ccca22448cc7f1c0f2a625072ba22e62b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96fe4d7004c1b320008eac79d6cbc014ef2244402f3e88d23aaeb3e75662645c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-05-04T15:49:36Z",
    "title_canon_sha256": "f6d1d2cab8c5ce47f9ce145defbd73af9f4899066020243efc18ee97588e7028"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02518",
    "kind": "arxiv",
    "version": 1
  }
}