Pith Number

pith:WOMDOGIW

pith:2019:WOMDOGIWJDQZMQBH2TYNOZ4JDJ

not attested not anchored not stored refs pending

Boundary Pointwise $C^{1,\alpha}$ and $C^{2,\alpha}$ Regularity for Fully Nonlinear Elliptic Equations

Kai Zhang, Yuanyuan Lian

arxiv:1901.06060 v1 · 2019-01-18 · 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{WOMDOGIWJDQZMQBH2TYNOZ4JDJ}

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	2026-05-17T23:56:04.698442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b39837191648e1964027d4f0d767891a79dc6b049031888a6b56a3d7fe9d7fd4

Aliases

arxiv: 1901.06060 · arxiv_version: 1901.06060v1 · doi: 10.48550/arxiv.1901.06060 · pith_short_12: WOMDOGIWJDQZ · pith_short_16: WOMDOGIWJDQZMQBH · pith_short_8: WOMDOGIW

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/WOMDOGIWJDQZMQBH2TYNOZ4JDJ \
  | 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: b39837191648e1964027d4f0d767891a79dc6b049031888a6b56a3d7fe9d7fd4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9da1a3d01a416934891b48867749b1e23e9975eb3a7fb3e1b7d12b1d78e70a95",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-01-18T02:19:00Z",
    "title_canon_sha256": "a9902463f6c27dacb8123ac2a30961e8a484c4317d9969eb4b15011a57ea735b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06060",
    "kind": "arxiv",
    "version": 1
  }
}