Pith Number

pith:OY27X5OW

pith:2017:OY27X5OW5TCPRHPV3UDIX2DFPC

not attested not anchored not stored refs pending

Positive solutions of an elliptic Neumann problem with a sublinear indefinite nonlinearity

Humberto Ramos Quoirin, Kenichiro Umezu, Uriel Kaufmann

arxiv:1705.07791 v1 · 2017-05-22 · 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{OY27X5OW5TCPRHPV3UDIX2DFPC}

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	2026-05-18T00:44:04.559270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7635fbf5d6ecc4f89df5dd068be86578a2dc4ad4020fe66413a2dad6296c82be

Aliases

arxiv: 1705.07791 · arxiv_version: 1705.07791v1 · doi: 10.48550/arxiv.1705.07791 · pith_short_12: OY27X5OW5TCP · pith_short_16: OY27X5OW5TCPRHPV · pith_short_8: OY27X5OW

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/OY27X5OW5TCPRHPV3UDIX2DFPC \
  | 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: 7635fbf5d6ecc4f89df5dd068be86578a2dc4ad4020fe66413a2dad6296c82be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a05a8ee024f514606ae97d23d41c2a568b158c97960f34f778ee0467cecf3735",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-05-22T15:01:42Z",
    "title_canon_sha256": "1afac057f1b619dafc2258b1d35679a5545a5a1be3f31adf8c1fb2185263164d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.07791",
    "kind": "arxiv",
    "version": 1
  }
}