Pith Number

pith:ZXXYCW3P

pith:2017:ZXXYCW3PF34JIR2ZUWICSHJCKU

not attested not anchored not stored refs pending

On the second order derivative estimates for degenerate parabolic equations

Ildoo Kim, Kyeong-Hun Kim

arxiv:1711.04081 v2 · 2017-11-11 · 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{ZXXYCW3PF34JIR2ZUWICSHJCKU}

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	2026-05-18T00:11:00.267115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdef815b6f2ef8944759a590291d225531f183720d6adc37f032298919983e23

Aliases

arxiv: 1711.04081 · arxiv_version: 1711.04081v2 · doi: 10.48550/arxiv.1711.04081 · pith_short_12: ZXXYCW3PF34J · pith_short_16: ZXXYCW3PF34JIR2Z · pith_short_8: ZXXYCW3P

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/ZXXYCW3PF34JIR2ZUWICSHJCKU \
  | 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: cdef815b6f2ef8944759a590291d225531f183720d6adc37f032298919983e23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff1192aa8bcb704f93bafd86d8d67857dcc4fe7e4c13f88d387061245fd69111",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-11-11T05:51:11Z",
    "title_canon_sha256": "5fd26dcb7b74c4a3f7ecc0de340e58b8b4547d405b8c56f890d84e21f48933cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.04081",
    "kind": "arxiv",
    "version": 2
  }
}