Pith Number

pith:ELJPIGQV

pith:2022:ELJPIGQVOZ3BWNREH34ABE4LDH

not attested not anchored not stored refs pending

Classification of solutions to several semi-linear polyharmonic equations and fractional equations

Yuan Li, Zhenping Feng, Zhuoran Du

arxiv:2201.00917 v2 · 2022-01-04 · 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{ELJPIGQVOZ3BWNREH34ABE4LDH}

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	2026-07-05T04:46:13.170432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22d2f41a1576761b36243ef800938b19e130d0fbddf6ff282045c248820c929a

Aliases

arxiv: 2201.00917 · arxiv_version: 2201.00917v2 · doi: 10.48550/arxiv.2201.00917 · pith_short_12: ELJPIGQVOZ3B · pith_short_16: ELJPIGQVOZ3BWNRE · pith_short_8: ELJPIGQV

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/ELJPIGQVOZ3BWNREH34ABE4LDH \
  | 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: 22d2f41a1576761b36243ef800938b19e130d0fbddf6ff282045c248820c929a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62ff140164b8e9d6d2280cf5f6855d4285f5970b6b6be190a49738e2dc735b21",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2022-01-04T00:30:23Z",
    "title_canon_sha256": "dd93141a412e6d563bd468821953deb42a2ce394cc04439a56245969218704cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.00917",
    "kind": "arxiv",
    "version": 2
  }
}