Pith Number

pith:RD2LOCJ3

pith:2009:RD2LOCJ3ORT24J4IE3ZHNGD2OE

not attested not anchored not stored refs pending

Hopf maximum principle violation for elliptic equations with non-Lipschitz nonlinearity

Yavdat Il'yasov, Youri Egorov

arxiv:0901.4191 v1 · 2009-01-27 · math.AP · math.CA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RD2LOCJ3ORT24J4IE3ZHNGD2OE}

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	2026-05-18T02:54:31.099454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88f4b7093b7467ae278826f276987a71023ff43eecd3ac74ded794179d92662a

Aliases

arxiv: 0901.4191 · arxiv_version: 0901.4191v1 · doi: 10.48550/arxiv.0901.4191 · pith_short_12: RD2LOCJ3ORT2 · pith_short_16: RD2LOCJ3ORT24J4I · pith_short_8: RD2LOCJ3

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/RD2LOCJ3ORT24J4IE3ZHNGD2OE \
  | 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: 88f4b7093b7467ae278826f276987a71023ff43eecd3ac74ded794179d92662a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91968af1e9e29f8d9a99ef06cd1108ce823e0ac4ab5fb76663016f09b865e9de",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-01-27T08:12:32Z",
    "title_canon_sha256": "174723cbe1b1af51ffb7e860cd68b8b97e45440a3bbe6e50d4e7e333f2b1e71a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4191",
    "kind": "arxiv",
    "version": 1
  }
}