Pith Number

pith:FNOITPHK

pith:2011:FNOITPHK5EDQ3GWCTFD4MEXEUT

not attested not anchored not stored refs pending

Perimeter of sublevel sets in infinite dimensional spaces

Alessandra Lunardi, Matteo Novaga, Michele Miranda Jr, Vicent Caselles

arxiv:1102.3860 v1 · 2011-02-18 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FNOITPHK5EDQ3GWCTFD4MEXEUT}

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	2026-05-18T04:28:20.746700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b5c89bceae9070d9ac29947c612e4a4e646f7b0c83019432c6b6bca4e900e1e

Aliases

arxiv: 1102.3860 · arxiv_version: 1102.3860v1 · doi: 10.48550/arxiv.1102.3860 · pith_short_12: FNOITPHK5EDQ · pith_short_16: FNOITPHK5EDQ3GWC · pith_short_8: FNOITPHK

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/FNOITPHK5EDQ3GWCTFD4MEXEUT \
  | 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: 2b5c89bceae9070d9ac29947c612e4a4e646f7b0c83019432c6b6bca4e900e1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5eb852ed20fae079bce292b48157a3283a1edc7744128e0c39abeaf3a722e92d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2011-02-18T15:50:17Z",
    "title_canon_sha256": "4211434d840f229e53f71207147eacaa425a55ffe6ef3d532f62b16f08ac894d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.3860",
    "kind": "arxiv",
    "version": 1
  }
}