Pith Number

pith:DM62WJ4J

pith:2018:DM62WJ4JJWOQKLYLKUBRBFMDPO

not attested not anchored not stored refs pending

On a fourth order nonlinear Helmholtz equation

Denis Bonheure, Jean-Baptiste Casteras, Rainer Mandel

arxiv:1803.08249 v1 · 2018-03-22 · 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{DM62WJ4JJWOQKLYLKUBRBFMDPO}

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	2026-05-17T23:59:09.461098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b3dab27894d9d052f0b55031095837b8b2b9a791826878cc881d8c12b3b9dc3

Aliases

arxiv: 1803.08249 · arxiv_version: 1803.08249v1 · doi: 10.48550/arxiv.1803.08249 · pith_short_12: DM62WJ4JJWOQ · pith_short_16: DM62WJ4JJWOQKLYL · pith_short_8: DM62WJ4J

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/DM62WJ4JJWOQKLYLKUBRBFMDPO \
  | 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: 1b3dab27894d9d052f0b55031095837b8b2b9a791826878cc881d8c12b3b9dc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edffec93b048a8960d06d0e46949ca9bcf766d07f2ba359424f428e3cdee658c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-03-22T07:16:44Z",
    "title_canon_sha256": "613d4008786eedc93cdc01e708a59da224090467b291809ea5bf3d0e0e4332ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08249",
    "kind": "arxiv",
    "version": 1
  }
}