Pith Number

pith:N2ZGL25M

pith:2016:N2ZGL25MHCHS5A6X73MQ6IFR3O

not attested not anchored not stored refs pending

Integral cohomology of the Generalized Kummer fourfold

Gr\'egoire Menet, Simon Kapfer

arxiv:1607.03431 v2 · 2016-07-12 · 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{N2ZGL25MHCHS5A6X73MQ6IFR3O}

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	2026-05-18T00:42:12.962933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6eb265ebac388f2e83d7fed90f20b1db87573021b45f1a287de00e6f6d5c7f91

Aliases

arxiv: 1607.03431 · arxiv_version: 1607.03431v2 · doi: 10.48550/arxiv.1607.03431 · pith_short_12: N2ZGL25MHCHS · pith_short_16: N2ZGL25MHCHS5A6X · pith_short_8: N2ZGL25M

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/N2ZGL25MHCHS5A6X73MQ6IFR3O \
  | 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: 6eb265ebac388f2e83d7fed90f20b1db87573021b45f1a287de00e6f6d5c7f91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd35e69bc642760b57871f60bd3a5f99614870a3decfea7a20d3b7dd67ad8c17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-07-12T16:34:20Z",
    "title_canon_sha256": "33ad9ca4db5f99e1c17971b3b3b1e69f83fcd21f1ab11d79ac0640a6be75d924"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.03431",
    "kind": "arxiv",
    "version": 2
  }
}