Pith Number

pith:BREBVI4Y

pith:2019:BREBVI4YKFU7JS3DH7B7BYOEGO

not attested not anchored not stored refs pending

Nonlinear nonhomogeneous boundary value problems with competition phenomena

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

arxiv:1907.04999 v1 · 2019-07-11 · 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{BREBVI4YKFU7JS3DH7B7BYOEGO}

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	2026-05-17T23:40:54.232115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c481aa3985169f4cb633fc3f0e1c433a799816b7d2536980423b157b59cd74b

Aliases

arxiv: 1907.04999 · arxiv_version: 1907.04999v1 · doi: 10.48550/arxiv.1907.04999 · pith_short_12: BREBVI4YKFU7 · pith_short_16: BREBVI4YKFU7JS3D · pith_short_8: BREBVI4Y

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/BREBVI4YKFU7JS3DH7B7BYOEGO \
  | 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: 0c481aa3985169f4cb633fc3f0e1c433a799816b7d2536980423b157b59cd74b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8fed921ab774f55d7555c81082ee72be3c08979d83a06e22342cea3a1a7aec0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-07-11T05:19:59Z",
    "title_canon_sha256": "5c3405ddf6fdc42751f7d9ca57c6ddb1cde2347022b9fc7ecb2f3b82a1362875"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04999",
    "kind": "arxiv",
    "version": 1
  }
}