Pith Number

pith:BK3AYUSI

pith:2015:BK3AYUSINQQRVUL5BNPV2365DU

not attested not anchored not stored refs pending

Pfaffian of Appell's hypergeometric system $F_4$ in terms of the intersection form of twisted cohomology groups

Jyoichi Kaneko, Keiji Matsumoto, Yoshiaki Goto

arxiv:1502.00795 v3 · 2015-02-03 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BK3AYUSINQQRVUL5BNPV2365DU}

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	2026-05-18T02:18:31.185275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ab60c52486c211ad17d0b5f5d6fdd1d2d8dda6dbfb7dc48075d2457de9f3220

Aliases

arxiv: 1502.00795 · arxiv_version: 1502.00795v3 · doi: 10.48550/arxiv.1502.00795 · pith_short_12: BK3AYUSINQQR · pith_short_16: BK3AYUSINQQRVUL5 · pith_short_8: BK3AYUSI

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/BK3AYUSINQQRVUL5BNPV2365DU \
  | 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: 0ab60c52486c211ad17d0b5f5d6fdd1d2d8dda6dbfb7dc48075d2457de9f3220

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a3ac4209d9cd532110cd9c3a69ca57758b1540d01dd85fc46dc2d01328960c5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-02-03T09:59:32Z",
    "title_canon_sha256": "cb45125b2c12d08c4d1cd1498cc9a4ce5dcd2f53202713fdaad7c0a6dc9365e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.00795",
    "kind": "arxiv",
    "version": 3
  }
}