Pith Number

pith:U2XY5TXN

pith:2009:U2XY5TXNAYJCWRPW5V6G4H4RWS

not attested not anchored not stored refs pending

On quasilinear parabolic evolution equations in weighted $L_p$-spaces

Jan Pruess, Mathias Wilke, Matthias K\"ohne

arxiv:0909.1480 v1 · 2009-09-08 · 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{U2XY5TXNAYJCWRPW5V6G4H4RWS}

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	2026-05-18T01:29:38.727051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6af8eceed06122b45f6ed7c6e1f91b4a7f63a7c083bd83df3ea0cf46639b7a8

Aliases

arxiv: 0909.1480 · arxiv_version: 0909.1480v1 · doi: 10.48550/arxiv.0909.1480 · pith_short_12: U2XY5TXNAYJC · pith_short_16: U2XY5TXNAYJCWRPW · pith_short_8: U2XY5TXN

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/U2XY5TXNAYJCWRPW5V6G4H4RWS \
  | 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: a6af8eceed06122b45f6ed7c6e1f91b4a7f63a7c083bd83df3ea0cf46639b7a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fbaa960db929a7c808c05235d9e50fd28f053dad44f86977a7a528320f63a24",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-09-08T13:00:00Z",
    "title_canon_sha256": "82c4be9a498e5be8c3e3bd36d196e1a732358e46ef5cef4cb36455ba401587a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1480",
    "kind": "arxiv",
    "version": 1
  }
}