Pith Number

pith:W7ABYUOD

pith:2014:W7ABYUODEJ2E4S6EZPSIGLQJAB

not attested not anchored not stored refs pending

An extremal eigenvalue problem for the Wentzell-Laplace operator

Djalil Kateb (LMAC), Jimmy Lamboley (CEREMADE), Marc Dambrine (LMAP)

arxiv:1401.7098 v2 · 2014-01-28 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W7ABYUODEJ2E4S6EZPSIGLQJAB}

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	2026-05-18T02:41:18.712340Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7c01c51c322744e4bc4cbe4832e09007b3fe1590e93573b9deacfc5b836bf02

Aliases

arxiv: 1401.7098 · arxiv_version: 1401.7098v2 · doi: 10.48550/arxiv.1401.7098 · pith_short_12: W7ABYUODEJ2E · pith_short_16: W7ABYUODEJ2E4S6E · pith_short_8: W7ABYUOD

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/W7ABYUODEJ2E4S6EZPSIGLQJAB \
  | 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: b7c01c51c322744e4bc4cbe4832e09007b3fe1590e93573b9deacfc5b836bf02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e865417a31ca0631d8421f9641fcec372a732c26a36fa53325a68bebc5ea9e9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-01-28T07:14:31Z",
    "title_canon_sha256": "8617f8c4c4ade4da237bfc7f5427a3768736243d1864e353cd70dae6cc2ca90e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.7098",
    "kind": "arxiv",
    "version": 2
  }
}