Pith Number

pith:E3G6MHIS

pith:2019:E3G6MHIS3A3K7KLS4RUJC3EEHI

not attested not anchored not stored refs pending

Pointwise Boundary Differentiability of Solutions of Elliptic Equations

Dongsheng Li, Kai Zhang, Yongpan Huang

arxiv:1901.06065 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{E3G6MHIS3A3K7KLS4RUJC3EEHI}

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	2026-05-17T23:56:04.673367Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26cde61d12d836afa972e468916c843a2454e4b6b81959347c36d64cd4fde8ff

Aliases

arxiv: 1901.06065 · arxiv_version: 1901.06065v1 · doi: 10.48550/arxiv.1901.06065 · pith_short_12: E3G6MHIS3A3K · pith_short_16: E3G6MHIS3A3K7KLS · pith_short_8: E3G6MHIS

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/E3G6MHIS3A3K7KLS4RUJC3EEHI \
  | 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: 26cde61d12d836afa972e468916c843a2454e4b6b81959347c36d64cd4fde8ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "498a0d46c375c95a2938b61dc570afaa4b5e97d26de883c38f0194b3b515b087",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-01-18T02:53:16Z",
    "title_canon_sha256": "46a4f7aed6ad6da17296a349ecbd6d09e6d284ad894e7086ec8ad72f73e1aff7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06065",
    "kind": "arxiv",
    "version": 1
  }
}