Pith Number

pith:EIIFLTRW

pith:2004:EIIFLTRWJ5IDFC4XY55WKVUPAX

not attested not anchored not stored refs pending

Blowing up Solutions for a Biharmonic Equation with Critical Nonlinearity

Khalil El Mehdi, Mokhless Hammami

arxiv:math/0408352 v1 · 2004-08-25 · 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{EIIFLTRWJ5IDFC4XY55WKVUPAX}

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	2026-05-18T01:05:26.050900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

221055ce364f50328b97c77b65568f05e06298c6cf8605cc400492ce0e315608

Aliases

arxiv: math/0408352 · arxiv_version: math/0408352v1 · doi: 10.48550/arxiv.math/0408352 · pith_short_12: EIIFLTRWJ5ID · pith_short_16: EIIFLTRWJ5IDFC4X · pith_short_8: EIIFLTRW

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/EIIFLTRWJ5IDFC4XY55WKVUPAX \
  | 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: 221055ce364f50328b97c77b65568f05e06298c6cf8605cc400492ce0e315608

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "119237d166d5340d5b8440db6fd009fc7fffb881ba517ba5cbe9f847cb859e0c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AP",
    "submitted_at": "2004-08-25T15:46:21Z",
    "title_canon_sha256": "2a9b5e895c9c5c549af89e2297372a1fd754af8742c76372a7fd3d350d30e879"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0408352",
    "kind": "arxiv",
    "version": 1
  }
}