Pith Number

pith:YHX7LNNL

pith:2008:YHX7LNNLUFJYVYPDN7BQQAMV4E

not attested not anchored not stored refs pending

Growth conditions and uniqueness of the Cauchy problem for the evolutionary infinity Laplacian

Jos\'e Miguel Urbano, Tommaso Leonori

arxiv:0809.2523 v2 · 2008-09-15 · 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{YHX7LNNLUFJYVYPDN7BQQAMV4E}

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	2026-05-18T04:40:54.778847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1eff5b5aba1538ae1e36fc3080195e13f52b45e2d196d2ff68d439fb7d7d88f

Aliases

arxiv: 0809.2523 · arxiv_version: 0809.2523v2 · doi: 10.48550/arxiv.0809.2523 · pith_short_12: YHX7LNNLUFJY · pith_short_16: YHX7LNNLUFJYVYPD · pith_short_8: YHX7LNNL

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/YHX7LNNLUFJYVYPDN7BQQAMV4E \
  | 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: c1eff5b5aba1538ae1e36fc3080195e13f52b45e2d196d2ff68d439fb7d7d88f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a389ad05f096a171a9a2e026f3f410240b037671f360eff68ad6981499f642f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2008-09-15T13:28:46Z",
    "title_canon_sha256": "65f51079e2b7817103764f130a0f3de84a9dc5ddba3cd36624e5cfdcd8361944"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2523",
    "kind": "arxiv",
    "version": 2
  }
}