Pith Number

pith:QGUDKXIS

pith:2019:QGUDKXISTLP345QXL35BKGBMIF

not attested not anchored not stored refs pending

Asymmetric Robin problems with indefinite potential and concave terms

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

arxiv:1901.06197 v1 · 2019-01-18 · 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{QGUDKXISTLP345QXL35BKGBMIF}

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	2026-05-17T23:56:04.260367Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81a8355d129adfbe76175efa15182c417a7afe815c9870ae691035f8a949c870

Aliases

arxiv: 1901.06197 · arxiv_version: 1901.06197v1 · doi: 10.48550/arxiv.1901.06197 · pith_short_12: QGUDKXISTLP3 · pith_short_16: QGUDKXISTLP345QX · pith_short_8: QGUDKXIS

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/QGUDKXISTLP345QXL35BKGBMIF \
  | 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: 81a8355d129adfbe76175efa15182c417a7afe815c9870ae691035f8a949c870

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd6256ab4a1af6178fdb5b784f6e8a22d8f62e52e14f9d62a0c2ed3197d33691",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-01-18T12:04:54Z",
    "title_canon_sha256": "397dd911c6b2b29de1e73b2a9d39b065629db615a03965519b4643cc863ddd48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06197",
    "kind": "arxiv",
    "version": 1
  }
}