Pith Number

pith:U2DGMKYN

pith:2019:U2DGMKYNYD5W36R4TIEEWUNAZ6

not attested not anchored not stored refs pending

${\cal C}^{1, \gamma} $ regularity for singular or degenerate fully nonlinear operators and applications

Fabiana Leoni, Francoise Demengel, Isabeau Birindelli

arxiv:1901.05400 v1 · 2019-01-16 · 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{U2DGMKYNYD5W36R4TIEEWUNAZ6}

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	2026-05-17T23:56:10.969519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a686662b0dc0fb6dfa3c9a084b51a0cfb296172c31b18d5a8995179a1986b772

Aliases

arxiv: 1901.05400 · arxiv_version: 1901.05400v1 · doi: 10.48550/arxiv.1901.05400 · pith_short_12: U2DGMKYNYD5W · pith_short_16: U2DGMKYNYD5W36R4 · pith_short_8: U2DGMKYN

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/U2DGMKYNYD5W36R4TIEEWUNAZ6 \
  | 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: a686662b0dc0fb6dfa3c9a084b51a0cfb296172c31b18d5a8995179a1986b772

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6c94fe6d0c6245a1aadf89da72a8578696f561d792b1b9cdb48858d188a86d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-01-16T17:32:27Z",
    "title_canon_sha256": "2de96966d3c9572618af23cb1bb611407214a38bea42520538e64eb28cb56526"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.05400",
    "kind": "arxiv",
    "version": 1
  }
}