Pith Number

pith:XQXNU7O5

pith:2017:XQXNU7O5EIDADMXML42QUOL3AH

not attested not anchored not stored refs pending

The Eigenvalue Problem for the $\infty$-Bilaplacian

Enea Parini, Nikos Katzourakis

arxiv:1703.03648 v4 · 2017-03-10 · 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{XQXNU7O5EIDADMXML42QUOL3AH}

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	2026-05-18T00:30:55.167058Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc2eda7ddd220601b2ec5f350a397b01dfd356bbb552a73ba26c288db76b761d

Aliases

arxiv: 1703.03648 · arxiv_version: 1703.03648v4 · doi: 10.48550/arxiv.1703.03648 · pith_short_12: XQXNU7O5EIDA · pith_short_16: XQXNU7O5EIDADMXM · pith_short_8: XQXNU7O5

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/XQXNU7O5EIDADMXML42QUOL3AH \
  | 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: bc2eda7ddd220601b2ec5f350a397b01dfd356bbb552a73ba26c288db76b761d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c609633d1459932a7758b32625a073b6a1813aa8c59478e72bca7317bc50f1d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-03-10T12:18:19Z",
    "title_canon_sha256": "80913756d12c8800630adc98c604ae4504f050553b6ff315d0e4de626459d8f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.03648",
    "kind": "arxiv",
    "version": 4
  }
}