Pith Number

pith:D3VYKIXU

pith:2018:D3VYKIXUW3PKZRNIWD2GTR5KW7

not attested not anchored not stored refs pending

Perturbations of nonlinear eigenvalue problems

Du\v{s}an D. Repov\v{s}, Nikolaos S. Papageorgiou, Vicen\c{t}iu D. R\u{a}dulescu

arxiv:1811.04417 v1 · 2018-11-11 · 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{D3VYKIXUW3PKZRNIWD2GTR5KW7}

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	2026-05-18T00:01:05.228640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1eeb8522f4b6deacc5a8b0f469c7aab7f0a45cf23aca338438056c78d4fdf9db

Aliases

arxiv: 1811.04417 · arxiv_version: 1811.04417v1 · doi: 10.48550/arxiv.1811.04417 · pith_short_12: D3VYKIXUW3PK · pith_short_16: D3VYKIXUW3PKZRNI · pith_short_8: D3VYKIXU

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/D3VYKIXUW3PKZRNIWD2GTR5KW7 \
  | 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: 1eeb8522f4b6deacc5a8b0f469c7aab7f0a45cf23aca338438056c78d4fdf9db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d30fa3bddbd0af19d75627c1bdafeb8f865d9ce58ec7e6100d4630d15e68f091",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-11-11T13:47:42Z",
    "title_canon_sha256": "295e08594d183221b831d0a3f7f9ee4a8ba89ebab2051d14f34bbf22d6f633da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.04417",
    "kind": "arxiv",
    "version": 1
  }
}