Pith Number

pith:WQY4SORR

pith:2018:WQY4SORRLKC6DEJIKO7QLFFVAP

not attested not anchored not stored refs pending

On weighted isoperimetric inequalities with non-radial densities

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

arxiv:1804.02282 v1 · 2018-04-06 · 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{WQY4SORRLKC6DEJIKO7QLFFVAP}

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	2026-05-18T00:19:05.327062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b431c93a315a85e1912853bf0594b503ca83ff96e1eec77f908c94087615f6b4

Aliases

arxiv: 1804.02282 · arxiv_version: 1804.02282v1 · doi: 10.48550/arxiv.1804.02282 · pith_short_12: WQY4SORRLKC6 · pith_short_16: WQY4SORRLKC6DEJI · pith_short_8: WQY4SORR

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/WQY4SORRLKC6DEJIKO7QLFFVAP \
  | 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: b431c93a315a85e1912853bf0594b503ca83ff96e1eec77f908c94087615f6b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6249572f6e1dd5d9b8b527423d45a9a8eb4fbc2e64552377e35a83c3ec2e4f05",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-04-06T14:09:09Z",
    "title_canon_sha256": "fb5c8bab18240763c51fe4613434fc7b4d17c6f4eb5cc8dc99fbde066332b0ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02282",
    "kind": "arxiv",
    "version": 1
  }
}