Pith Number

pith:V46ZICYH

pith:2025:V46ZICYHPEBDOVC6ISDFF4NOTG

not attested not anchored not stored refs pending

Hessian Estimates for the Sigma-2 Equation with Variable Right-Hand Side Terms in Dimension 4

Zhenyu Fan

arxiv:2509.03217 v1 · 2025-09-03 · 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{V46ZICYHPEBDOVC6ISDFF4NOTG}

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	2026-07-05T12:04:06.706159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af3d940b07790237545e448652f1ae99a4ffac6619feee0a305d9dea93f1fc7f

Aliases

arxiv: 2509.03217 · arxiv_version: 2509.03217v1 · doi: 10.48550/arxiv.2509.03217 · pith_short_12: V46ZICYHPEBD · pith_short_16: V46ZICYHPEBDOVC6 · pith_short_8: V46ZICYH

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/V46ZICYHPEBDOVC6ISDFF4NOTG \
  | 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: af3d940b07790237545e448652f1ae99a4ffac6619feee0a305d9dea93f1fc7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe593aedb3c949a0c61cc1a212c922904abf6255bd9c09ddc148ae5ca50017e0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2025-09-03T11:12:24Z",
    "title_canon_sha256": "d7429c517f92f554bdd420443385c15c5236500ad4c2910024c6b3f67e919195"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.03217",
    "kind": "arxiv",
    "version": 1
  }
}