Pith Number

pith:J3TKBG5I

pith:2025:J3TKBG5ITEOWWREROFWQEVDYWH

not attested not anchored not stored refs pending

Fedder-type criterion for quasi-$F^e$-splitting and quasi-$F$-regularity

Shou Yoshikawa

arxiv:2505.09015 v4 · 2025-05-13 · math.AG · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J3TKBG5ITEOWWREROFWQEVDYWH}

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.

Cited by

1 paper in Pith

Quasi-$F$-singularities and singularities in birational geometry

Receipt and verification

First computed	2026-07-05T11:55:39.889022Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ee6a09ba8991d6b4491716d025478b1da7abfc30c143325f1e21fca2a326827

Aliases

arxiv: 2505.09015 · arxiv_version: 2505.09015v4 · doi: 10.48550/arxiv.2505.09015 · pith_short_12: J3TKBG5ITEOW · pith_short_16: J3TKBG5ITEOWWRER · pith_short_8: J3TKBG5I

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/J3TKBG5ITEOWWREROFWQEVDYWH \
  | 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: 4ee6a09ba8991d6b4491716d025478b1da7abfc30c143325f1e21fca2a326827

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb9a5320fdb0b1a623ca21ef51d5d7519354e8bb41fa7cc490bed4748a8c9a17",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2025-05-13T23:08:55Z",
    "title_canon_sha256": "f1ca9de6402afa4ba25732bcc0acab45323b70da32e60e9037ad0ee550cd5fa9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.09015",
    "kind": "arxiv",
    "version": 4
  }
}