Pith Number

pith:K2XOJFZC

pith:2009:K2XOJFZCD26IA56P2QSXYDHA2E

not attested not anchored not stored refs pending

Nonclassical Solutions of Fully Nonlinear Elliptic Equations II. Hessian Equations and Octonions

Nikolai Nadirashvili, Serge Vladuts

arxiv:0912.3126 v3 · 2009-12-16 · math.AP · math.DG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K2XOJFZCD26IA56P2QSXYDHA2E}

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	2026-05-18T04:09:45.923869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56aee497221ebc8077cfd4257c0ce0d1002dbdce25f6f0771b4f6b602392ae45

Aliases

arxiv: 0912.3126 · arxiv_version: 0912.3126v3 · doi: 10.48550/arxiv.0912.3126 · pith_short_12: K2XOJFZCD26I · pith_short_16: K2XOJFZCD26IA56P · pith_short_8: K2XOJFZC

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/K2XOJFZCD26IA56P2QSXYDHA2E \
  | 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: 56aee497221ebc8077cfd4257c0ce0d1002dbdce25f6f0771b4f6b602392ae45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66276c9ad77943a29284e189084604a96241ba44e793b01ecf9d014c3e5e7814",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-12-16T12:54:53Z",
    "title_canon_sha256": "7cb07ffa4648dc49fa4de90f6c91305f19c0438d5c3868b6a177097f044420bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3126",
    "kind": "arxiv",
    "version": 3
  }
}