Pith Number

pith:URFL4JKD

pith:2015:URFL4JKD76644EOHI4KZRC4KLS

not attested not anchored not stored refs pending

Embedded eigenvalues of the Neumann problem in a strip with a box-shaped perturbation

G. Cardone, S.A. Nazarov, T. Durante

arxiv:1512.06891 v1 · 2015-12-21 · math.SP · math-ph · math.AP · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{URFL4JKD76644EOHI4KZRC4KLS}

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	2026-05-18T00:16:45.961993Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a44abe2543ffbdce11c74715988b8a5c999b3265cdcaeecb922e2c2de9feb36e

Aliases

arxiv: 1512.06891 · arxiv_version: 1512.06891v1 · doi: 10.48550/arxiv.1512.06891 · pith_short_12: URFL4JKD7664 · pith_short_16: URFL4JKD76644EOH · pith_short_8: URFL4JKD

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/URFL4JKD76644EOHI4KZRC4KLS \
  | 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: a44abe2543ffbdce11c74715988b8a5c999b3265cdcaeecb922e2c2de9feb36e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c97fd580ebfcdc74626db0d320c0adadc716856cca47d2589fb9147dff0aecb0",
    "cross_cats_sorted": [
      "math-ph",
      "math.AP",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2015-12-21T22:15:05Z",
    "title_canon_sha256": "2ac225ed04be61409b39a534896379e38fede59e7e8a6b7fba2364829c151125"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.06891",
    "kind": "arxiv",
    "version": 1
  }
}