Pith Number

pith:BLSUGQJV

pith:2021:BLSUGQJV6WQTM2NCTUMEXXRAYI

not attested not anchored not stored refs pending

An isoperimetric inequality for the first Steklov-Dirichlet Laplacian eigenvalue of convex sets with a spherical hole

Gianpaolo Piscitelli, Gloria Paoli, Nunzia Gavitone, Rossano Sannipoli

arxiv:2103.05980 v2 · 2021-03-10 · 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{BLSUGQJV6WQTM2NCTUMEXXRAYI}

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	2026-07-05T05:41:14.322627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ae5434135f5a13669a29d184bde20c224458cc3745bbdb2810f01fbbb12a96f

Aliases

arxiv: 2103.05980 · arxiv_version: 2103.05980v2 · doi: 10.48550/arxiv.2103.05980 · pith_short_12: BLSUGQJV6WQT · pith_short_16: BLSUGQJV6WQTM2NC · pith_short_8: BLSUGQJV

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/BLSUGQJV6WQTM2NCTUMEXXRAYI \
  | 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: 0ae5434135f5a13669a29d184bde20c224458cc3745bbdb2810f01fbbb12a96f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4030828bc3fb628c45a08a2b158d828a6083413aa3e248749b8ddc4fe64d96b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2021-03-10T10:31:17Z",
    "title_canon_sha256": "7a8c961dd8e72c2c9a20bb3fc2226c2a8352d9621f8ad7c278f53f5a263d628f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.05980",
    "kind": "arxiv",
    "version": 2
  }
}