Pith Number

pith:JOE3YHRK

pith:2019:JOE3YHRKIE7A6NAMC4MSPJ67LZ

not attested not anchored not stored refs pending

Lack of smoothing for bounded solutions of a semilinear parabolic equation

Johannes Lankeit, Marek Fila

arxiv:1903.08899 v1 · 2019-03-21 · 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{JOE3YHRKIE7A6NAMC4MSPJ67LZ}

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	2026-05-17T23:50:43.629828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b89bc1e2a413e0f340c171927a7df5e42f8edfb77ee672407c5acda19f53f07

Aliases

arxiv: 1903.08899 · arxiv_version: 1903.08899v1 · doi: 10.48550/arxiv.1903.08899 · pith_short_12: JOE3YHRKIE7A · pith_short_16: JOE3YHRKIE7A6NAM · pith_short_8: JOE3YHRK

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/JOE3YHRKIE7A6NAMC4MSPJ67LZ \
  | 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: 4b89bc1e2a413e0f340c171927a7df5e42f8edfb77ee672407c5acda19f53f07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "396d46a08304a3439aa75f07b4299b993337c970bad38991cedd271e8cd2713c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-03-21T09:52:44Z",
    "title_canon_sha256": "ebe0751da44af9a09fb66ab802074663fe7205f33778e827f5d961a59758febd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08899",
    "kind": "arxiv",
    "version": 1
  }
}